Populating A Dropdown List Based On Value Selected In Previous List (mvc3)

Mar 18 at 18:55

I'm trying to progam a strongly typed "Create" view using MVC 3 and razor. I want the user to be able to select a customer from a dropdown list (I populated this from my database using ViewBag in the controller). When the user has selected a customer I want a separate dropdown list to generate a list of dogs belonging to that customer related by the customerID in the database. The create button on the form will then take both of these values along with the the other fields and save it to the database.

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Populating Dropdown List With Previous Dates?

Mar 02, 2009 03:01 PM

I have to populate 1st drop down list with today's date and 100 dates prior to today. I am trying to use adddays method but in reverse order. With adddays I have today's date and next 100 dates. This code doesn't work:

Dim i
As
Integer
For i = 1
To 100
DropDownList1.Items.Add(date.today.AddDays(i-1))
Next i

The 2nd dropdown should read date selected from 1st dropdown and then populate 2nd dropdown list with 7 days preceeding the selected date.

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AJAX :: Display Cascading Dropdown List Based On Checkbox List Selected Value

Nov 10, 2010 05:26 AM

How can i generate dropdown lists based on what has been selected in the checckbox list. Below is an example of what i need. if the user selects the options day, lotID and waferID, then 3 cascading dropdown lists should be displayed. And then a gridview displays data based on what has been chosen in the dropdown lists.

Day
LotID
SlotID
WaferID
VendorID
ToolID
LocationDetected
ProcessStep
Stage
Precipe
WaferStartMaterial
WaferStartVendor
WaferStartLot
WaferDiameterCOA
WaferMapTitle
BreakPoint
BreakpointSide
BreakpointMeasurement

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C# - How To Disable Dropdown List Value In The Current Form That Was Selected In The Previous Page

Aug 27 10 at 10:42

I am having 2 web formsand will have a drop down list on those web forms. If i select a value from drop down and click on ok i will get tranfer to next page. In that page i will have a drop down with the same values in the previous form . What i need is i would like to disable the selected value in the previos form and would like to display the remaining normal

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Web Forms :: Populating Text Boxes Based On Dropdown List Selection From Stored Procedure?

Aug 26, 2009 09:50 PM

I have a drop down list being populated from a stored procedure. The drop down list contains job titles and there are text boxes that I need to populate with the corresponding pay structures based on the selection from the drop down list. Those pay structure values are also located in my database. Something tells me that I will need a second stored procedure to accomplish this.

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Web Forms :: How To Disable Dropdown List Value In The Current Form That Was Selected In The Previous Page

Aug 27, 2010 10:53 AM

I am having 2 web formsand will have a drop down list on those web forms. If i select a value from drop down and click on ok i will get tranfer to next page. In that page i will have a drop down with the same values in the previous form . What i need is i would like to disable the selected value in the previos form and would like to display the remaining normal.

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AJAX :: Open Modelpopup Window Based On Value Selected In Dropdown List?

May 27, 2010 09:07 PM

Is there a way to open modelpopup window based on value seleted in dropdown list? I want to open a window when Urgent is selected in the dropdown list=!!!!

here is the code for ModalPopupExtender:

<ajaxToolkit:ModalPopupExtender ID="ModalPopupExtender1" runat="server"
TargetControlID="DropDownList1"
PopupControlID="Panel1"
BackgroundCssClass="modalBackground"

[Code]....

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Forms Data Controls :: Display A Popup Comment Box Based A Selected Value From A Dropdown List Control?

Nov 23, 2009 10:57 PM

How can I display a popup combo box or make visible a comment box if i select the value other form a visual studio drop down list. The drop down list control is within FormView1. I am using visual studio 2005.

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Web Forms :: Clicking The Label Of A Dropdown List - Resets The Selected Value To The First Item In The List?

Feb 17, 2010 02:26 PM

Clicking the label of a drop down list, re-sets the selected value to the first item in the list. This has a history of causing data entry problems when users accidently click on the label.

In the below example ddlContactType has a selected value as 'PRIMARY' and whenever i click on the lblContactType Text, the dropdown box Selected value is changing to "Select One" Text.

How to prevent this one. It should be on PRIMARY Only.

<p>
<tr> <td ><asp:Label ID="lblContactType" Font-Bold="true" Text="Contract Type: *" ForeColor= "red" runat="server" AssociatedControlID="ddlContactType"></asp:Label> </td> <td > <asp:DropDownList runat="server" ID="ddlContactType" DataSourceID="SqlDataSource2" AppendDataBoundItems="true"
DataTextField="TYPE" DataValueField="ID" SelectedValue='<%# Bind("CONTACT_TYPE_ID") %>'>
<asp:ListItem Text="Select One" Value="0" Selected="True"></asp:ListItem>.......

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Web Forms :: Dropdown List Not Populating

Sep 17, 2009 07:44 PM

Dropdown list not populating

[Code]....

[Code]....

[Code]....

CodeBehind:

[Code]....

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Populating A DropDown List With Multiple Items?

Apr 30, 2010 10:05 PM

I am running into some additional difficulties with dropdown lists, and I'm hoping you can correct my thinking.

I have a table populated with items; ITEM_ID, ITEM_NAME, ITEM_COST.

Here is my code:

[Code]....

With this code I get this error: DataBinding: 'ITEM' does not contain a property with the name '2'.

If I remove the assignment of DataSource to c1, the dropdown generates this error: 'DropDownList3' has a SelectedValue which is invalid because it does not exist in the list of items.

Parameter name: value

How should I code this so that the user is presented with a list of ITEM_NAMES, and that the ITEM_ID is stored in the value field so I can use it when the selection event is fired? I know I could databind the source directly to the dropdown list, but I am trying to understand the behind the scenes working of a dropdown list object.

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C# - Populating Dropdown List With Enum Using Reflection?

Mar 29 at 5:06

I am populating a page with controls reading properties of a class using reflection. If the property type is 'String' I will add a text-box. If the property type is enum I am adding a dropdownlist. Now I have to populate the dropdown options with enums. How can this be done?

Both the enum definition class(Assignment) and the class(classOne) using which I am populating the page with controls are in the same Namespace(MySolution.Data). While looping through classOne properties when the property name is 'SkillLevel' I will have to go to assignment class get the members of enum SkillLevelEnum and populate the dropdown.

Same needs to be done for other dropdowns also.

My Code:

namespace MySolution.Data
{
public class classOne : MyAdapter
{
private string _Model;

[code]....

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Populating DropDown List / How To Populate With Values From A Table

Jun 25, 2009 06:32 PM

I have a DropDownList called "ddlCountry" that I need to populate with values from a table. Normally I would just push the recordset's "countryName" field into an array and useddlCountry.DataBind to populate it with the array.

resulting in something like this:

[Code]....

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Web Forms :: Populating Dropdown List To Show Many Integers

Mar 19, 2010 12:17 PM

I want to populate a Dropdown list from divisons of a figure in my projects database

for example database figure 50

I want the dropdown list to show 5,10,15,20,25,30,35,40,45,50

The database figure wont always be the same.

how would i go about doing this ? esp the populating of the dropdown list itself based on the way i want to show it.

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Update Panel - Populating Dropdown List From Database

Mar 25 at 16:10

I have a ASP.NET AJAX Autocomplete Textbox and Two other dropdownlist in a Update Panel. On selection of an item in Autocomplete Textbox, I want to populate Dropdown list from Database.

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Web Forms :: Dropdown List With Previous Month?

Jan 05, 2011 05:07 AM

I have a dropdown list for last months reports. the following is the code:

[Code]....

But this month as of Jan 2011, the dropdown list for the month shows December, but the year is current, i.e. 2011;

guide me how can i accomplish this.

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Web Forms :: Populating A Text Box With Data From DropDown List On Page Load?

Mar 09, 2011 05:42 PM

I have a dropdown control that has a list of names in it called PlayerNameDropDownList_Insert and a textBox called PlayerName.

When I select a name from the dropdown it populates the textbox correctly.However, when the page opens the first name is selected in the dropdown but nothing in the textbox. How can I get the textbox to populate with the value of the dropdown at pageload?

[Code]....

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Web Forms :: DropDown List Not Populating When Text Changes In The Textbox Its Query Fires Off

Sep 14, 2009 04:59 AM

I have a query that ties into two other controls (2 textboxes) -- this query is used to populate one of my drop down lists to show the amount of vendors a certain company has -- the query allows me to do a search (based off of the company's name (which i get from textbox1) and then search criteria which I get from searchbox 2. Its not reading from searchbox2 when i put my search criteria in and i was wondering how i could get it to populate correctly.

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Web Forms :: Dropdown Selection Based On Other Dropdown List For State, City, Zipcode?

Dec 03, 2009 03:14 PM

I got a qq. I have 3 Dropdownlists.State,city, zipcode. I will be loading state from stored proc. For City I will be loading based on State from stored proc. For zipcode I will be loading on State, city from stored proc. When I am selecting state I am getting city list in city dropdown. But I am loosing the values from state dropdown list.i want to show selected state value in dropdownlist.Why its become empty. I will be loading zipcodes based on State & City. Why I am loosing the state values.??Can you suggest me... I copied my code below.

[Code]....

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JQGrid Inline Editing - Filter Subcategory Dropdown List Based On Another Category Dropdown

Jul 9 10 at 14:02

I have a category and a subcategory column in a Jqgrid. I have enabled inline editing, both category and subcategory are dropdownlists columns (edittype:'select'). I need to filter the subcategory list based on the selected category. I wonder how can I acheive this functionlity? I tried the below event but its not working for me

afterEditCell: function(rowid, celname, value, iRow, iCol) {
//to do here
}

the above event doesn't get fired. my all column are editable

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Forms Data Controls :: 2 Dropdown List / "Displaying A Dropdown List Of Categories With A --None -- Option?

Oct 10, 2010 07:47 PM

I am stuck at this point "Displaying a dropdown list of Categories with a --None -- Option. I want the gridview control to display 2 dropdown list one in read-only mode and the other in edit mode. When a record is in read-only mode, the dropdownlist's enabled property will be set to false."When it's on a read-only mode, it doesn't display the selected Category. it shows but the "No Category". When i click on edit to edit or change category, it doesn't display the selected category.

The example is given below( I am reading the book Sams Teach yourself ASP.NET 2.0 by Scott Mitchell. page 628)

<asp:Label ID="UserIdValue" runat="server" Visible="False"></asp:Label>
<asp:SqlDataSource ID="picturesDataSource" runat="server"
ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
SelectCommand="SELECT * FROM [Pictures] WHERE ([UserId] = @UserId) ORDER BY [UploadedOn] DESC"
DeleteCommand="DELETE FROM [Pictures] WHERE [PictureID] = @PictureID"
InsertCommand="INSERT INTO [Pictures] ([UserId], [CategoryID], [Title], [Description], [UploadedOn]) VALUES (@UserId, @CategoryID, @Title, @Description, @UploadedOn)"
UpdateCommand="UPDATE [Pictures] SET [UserId] = @UserId, [CategoryID] = @CategoryID, [Title] = @Title, [Description] = @Description, [UploadedOn] = @UploadedOn WHERE [PictureID] = @PictureID">
<DeleteParameters>
<asp:Parameter Name="PictureID" Type="Int32" />
</DeleteParameters>
<InsertParameters>
<asp:Parameter Name="UserId" />
<asp:Parameter Name="CategoryID" Type="Int32" />
<asp:Parameter Name="Title" Type="String" />
<asp:Parameter Name="Description" Type="String" />
<asp:Parameter Name="UploadedOn" Type="DateTime" />
</InsertParameters>
<SelectParameters>
<asp:ControlParameter ControlID="UserIdValue" Name="UserId" PropertyName="Text"/>
</SelectParameters>
<UpdateParameters>
<asp:Parameter Name="UserId"/>
<asp:Parameter Name="CategoryID" Type="Int32" />
<asp:Parameter Name="Title" Type="String" />
<asp:Parameter Name="Description" Type="String" />
<asp:Parameter Name="UploadedOn" Type="DateTime" />
<asp:Parameter Name="PictureID" Type="Int32" />
</UpdateParameters>
</asp:SqlDataSource>
<br />
<asp:SqlDataSource ID="categoriesDataSource" runat="server"
ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
SelectCommand="SELECT [CategoryID], [Name] FROM [Categories] WHERE ([UserId] = @UserId)">
<SelectParameters>
<asp:ControlParameter ControlID="UserIdValue" Name="UserId" PropertyName="Text" />
</SelectParameters>
</asp:SqlDataSource>
<br />
<asp:SqlDataSource ID="maxPictureIDDataSource" runat="server"
ConnectionString="<%$ ConnectionStrings:ConnectionString %>" SelectCommand="SELECT MAX(PictureID)
FROM Pictures
WHERE UserId = @UserId">
<SelectParameters>
<asp:ControlParameter ControlID="UserIdValue" Name="UserId"
PropertyName="Text" />
</SelectParameters>
</asp:SqlDataSource>
<br />
<asp:Label ID="cannotUploadImageMessage" runat="server"
Text="The photo could not be added to your album either because you did not specify a file to upload or the file specified was not a JPEG image with the file extension .JPG"></asp:Label>
<br />
<asp:DetailsView ID="dvPictureInsert" runat="server"
DataSourceID="PicturesDataSource" Height="50px" Width="125px"
AutoGenerateRows="False" CellPadding="4" DataKeyNames="PictureID"
DefaultMode="Insert" ForeColor="#333333" GridLines="None">
<AlternatingRowStyle BackColor="White" />
<CommandRowStyle BackColor="#D1DDF1" Font-Bold="True" />
<EditRowStyle BackColor="#2461BF" />
<FieldHeaderStyle BackColor="#DEE8F5" Font-Bold="True" />
<Fields>
<asp:TemplateField HeaderText="Picture">
<InsertItemTemplate>
<asp:FileUpload ID="imageUpload" runat="server" />
<asp:RequiredFieldValidator ID="RequiredFieldValidator3" runat="server"
ControlToValidate="imageUpload" Display="Dynamic"
ErrorMessage="There was no file selected" ValidationGroup="PictureAdd"></asp:RequiredFieldValidator>
</InsertItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Category" SortExpression="CategoryID">
<EditItemTemplate>
<asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("CategoryID") %>'></asp:TextBox>
</EditItemTemplate>
<InsertItemTemplate>
<asp:DropDownList ID="pictureCategory" DataSourceID="categoriesDataSource"
runat="server" DataTextField="Name" DataValueField="CategoryID"
SelectedValue='<%# Bind("CategoryID") %>'
Visible='<%# Bind("CategoryID") %>' AppendDataBoundItems="True">
<asp:ListItem Selected="True" Value="">-- Select Category --</asp:ListItem>
</asp:DropDownList>
</InsertItemTemplate>
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Bind("CategoryID") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Title" SortExpression="Title">
<EditItemTemplate>
<asp:TextBox ID="TextBox2" runat="server" Text='<%# Bind("Title") %>'></asp:TextBox>
</EditItemTemplate>
<InsertItemTemplate>
<asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("Title") %>'></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server"
ControlToValidate="TextBox1" Display="Dynamic"
ErrorMessage="you must provide a name for the title"
ValidationGroup="PictureAdd"></asp:RequiredFieldValidator>
</InsertItemTemplate>
<ItemTemplate>
<asp:Label ID="Label2" runat="server" Text='<%# Bind("Title") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Description" SortExpression="Description">
<EditItemTemplate>
<asp:TextBox ID="TextBox3" runat="server" Text='<%# Bind("Description") %>'></asp:TextBox>
</EditItemTemplate>
<InsertItemTemplate>
<asp:TextBox ID="TextBox2" runat="server" Text='<%# Bind("Description") %>'

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Trying To Set Selected Value On A Dropdown List

Nov 17, 2008 02:15 PM

I'm trying to set the selected value of a dropdown list, but it just doesn't seem to work. I've gone so far as to display a label next to the dropdown list to make sure my query is working properly. What am I missing? My code is below...

asp.net page where I set the sqldatasource, dropdown list, and my temporary "label"

[Code]....

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Getting Selected Value From A Dropdown List

Jan 22, 2009 07:04 PM

im using a dropdown list in a gridview. the list is databound to a table. im trying to retreive the selected value in the click event of a button, but i always get the first value. i have visited many forums but couldnt get anything.

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Dropdown List Selected Value?

Nov 23, 2010 05:12 PM

In my application iam having two dropdownlist .i bind the the database to dropdownlist using c# with asp.net but i store the datavaluefeild(id).similar way i fallow for another ddl also. My Aim is while selected index change event of first ddl i have show the corresponding text of second ddl in front end....both the textbox i store the selected value in database

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How To Get The Value Selected From Dropdown Instead Of 1st Value In List

May 21, 2009 06:40 PM

I have a simple vb.net page. On it is a dynamic dropdown list. And when the user clicks the continue button, I want to grab the value they selected in the drop down, however my code below doesn't grab the value they select, it always grabs the first value from the drop down list. what am I doing wrong? I want to set the value of a hidden field (hdnMatterID) equal to the value selected in the ddInProgress Matters drop down list.

Protected Sub btnContinueInProgressMatters_Click(ByVal
sender As
Object,
ByVal e
As System.EventArgs)
Handles btnContinueInProgressMatters.Click
hdnMatterID.Value = ddInProgressMatters.SelectedValue
End
Sub

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MVC :: How To Set The Default Selected Value For A Dropdown List

Aug 31, 2010 02:46 PM

how i can set the default selected value for a dropdown list. My actual code is:

[Code]....

the GetAvatars() function return a List<MyObject> that contains the avatars informations such as filename and file url. I don't know if i this is correct, anyway i want to display a selectbox that shows the list of the avatars in a folder with a predefinited avatar selected and i would like to show an image near the selectbox with the current selected avatar. How can i do it? I don't find any way to set the default value

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MVC :: DropDown List Selected Property Not Set?

Mar 09, 2010 10:17 AM

I have a main "index" view that has a drop down and a submit button. When a selection is made (CampaignId) and a submit button is pressed a list of items is displayed and filtered based on the selection from the drop down list.

I've added a partial view (on the right rail) of my site that lists a bunch of campaigns. when a link is pressed in that partial view a (CampaignId) is passed to my page and the same thing happends as if you would make a selection from the drop down. The issue is that the dropdown "Campaign Name" should be selected based on the selection from the partial view.

[code]....

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How To Specify The Selected Option To A Dropdown List MVC

Apr 14 10 at 23:06

I have a list of options (IEnumerable< SelectListItem >) in my model that I want to use in multiple dropdowns in my view. But each of these dropdowns could have a different selected option.

Is there an easy way to simply specfiy which should be selected if using the Html.DropDownList helper?

At this point, the only way I can see is to generate the html myself and loop through the list of options like so:

[code]....

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MVC :: Dropdown List Selected Item Asp.2

Jul 24, 2010 11:17 AM

After validation dropdown list do not select previous value.

<%: Html.DropDownList("Country",(SelectList)ViewData["Country"],"") %>

However in Quick View there is correct selected value. :(

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Selected Value From A Dropdown List Not Displayed?

May 08, 2009 01:51 PM

i have a dropdown list which has three options. The "select" option is displayed by default.

None of the other options work when clicked.

this is the code that i use in vb:

If DropDownListSelect.Text =
"--Select--"
Then
LabelError.Text = "Select an option to continue."
ElseIf DropDownListSelect.SelectedItem.Value.Trim =
"Associate Inventory to PAC"
Then
GridViewConfigure.DataSource = tblAdinvtopac.GetData()
GridViewConfigure.DataBind()
'ElseIf DropDownListSelect.SelectedItem.Value.Trim = "Bench to Bench" Then
'ElseIf DropDownListSelect.SelectedItem.Selected = "Associate Bench to PAC" Then
' MsgBox("1")
End
If

The page displays the select option by default. even when some other option is selected in the DropDown list , there is no change in the page.

The grid that i am trying to display in one of the selected options of the dropdown list is displayed otherwise.

i cant understand why the grid never shows up when i select the corresponding option in the dropdown list.

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JQuery :: How To Get Selected Value Of Dropdown List

Nov 03, 2010 12:12 PM

i am assgining an values to drop down list using javascript onchange event of another drop down.

every thing is working fine,but when i try to get the value of selected dropdrown it is giving me nothing

as my dropdown declare as fallows

[Code]....

[Code]....

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Dropdown List Selected Index?

Nov 03, 2008 09:25 AM

i have dropdown list (ITEM TEMPLATE) of grid view , where the values are loaded from db which is (restaurant name). and i have othr field called price .

where each restaurant have diff price values , The below eg ll discribe my criteria . i had set autopostback="true"

EG . MY GRIDVIEW >....

fid resname(dropdown list) price

1 resname1 15 //// this should be displayed first , on selecting resname2 the price value should change according to its resname2
resname2
but the output is
fid resname price
1 resname1 (empty)blank field

this s d code ,

protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
string constr = ConfigurationManager.AppSettings["constring"];
SqlConnection myconnection = new SqlConnection(constr);
DropDownList currentDDL = (DropDownList)sender;
string restaurantname = currentDDL.SelectedValue.ToString();
SqlCommand price = new SqlCommand("select price from maintable where rid='" + restaurantname + "'", myconnection);
SqlDataAdapter value_price = new SqlDataAdapter(price);
DataSet ds1 = new DataSet();
value_price.Fill(ds1, "Table");
TableCell cell = (TableCell)currentDDL.Parent;
cell.Text =(string)ds1.Tables[0].Rows[0][0];
}
<asp:GridView ID="GridView1" runat="server" style="left: 157px; position: relative; top: 141px" OnRowDataBound="GridView1_RowDataBound" AutoGenerateColumns="False" >
<Columns>
<asp:BoundField DataField="fid" HeaderText="fid" />
<asp:BoundField HeaderText="Fname" DataField="fname"/>
<asp:TemplateField HeaderText="rname">
<ItemTemplate>
<asp:DropDownList ID="DropDownList1" AutoPostBack="true" runat="server" Style="position: relative" >
</asp:DropDownList>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField HeaderText="price" />
<asp:TemplateField HeaderText="Quantity">
<EditItemTemplate>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
</EditItemTemplate>
<ItemTemplate>
<asp:TextBox ID="TextBox2" runat="server" Style="position: relative"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:ButtonField CommandName="addcart" HeaderText="ADDCART" Text="Button" />
</Columns>
</asp:GridView>

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Trying To Get Selected Value Of A Html Dropdown List

Dec 11, 2010 02:56 AM

How can I get the selected value of a HTML dropdown list using asp.net 2.0 (VB). I know I have done something like this before, but can't find that code.

Here is my HTML list

<select id="a2"><option>1</option><option>2</option><option>3</option><option>4</option><option>5</option></select>

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Web Forms :: Preselect Item In Dropdown List Box Based On Value

Jun 16, 2010 08:48 PM

I am trying to preselect an item in a drop down list box based upon a value I pass in from a data reader. When I place a "Watch" on the drop down list box, the code I am listing below says that it does what it is supposed to and sets the "selected item" to the one I want BUT when the page is rendered and comes up the first item is always selected. It is like it loses the set when the page is loaded or something.

Here is the code....
<td style="width:33%"><asp:Label CssClass="formlabel" ID="lblRU" runat="server" Text="Reporting Unit: "> </asp:Label> <asp:DropDownList ID="ddlRepUnitTeam" runat="server" DataSourceID="SqlDataSource1" DataValueField="MR_LU_TEAMS_PK" DataTextField="MR_LU_TEAMS_NAME"> </asp:DropDownList> </td> <%
For Each item As ListItem In ddlRepUnitTeam.Items
If item.Text = myReader.GetString(0) Then ' ddlRepUnitTeam.Visible = False
item.Selected = True Exit For End If Next %>

For giggles, I add the ".Visible = False" in there as a test and commented it out later. That doesnt work either. The item still is visible. I know the IF statement passes as it enters into the if statement using debug mode and hits the "Exit For" so I know the condition is being met. I am at a loss over this one.

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Web Forms :: Dropdown List With No Item Selected

Oct 19, 2009 02:07 PM

I have a drop down list that loads and has the first item [0] selected. I tried setting the selected index to -1 but it still shows as 0. Is there any way to have it so none of the items in the drop down list are selected so that it will force the user to select one? Here is the code for binding the data from the database:

DA_Class DAobject = new DA_Class();
ddl.DataSource = DAobject.GetItems();
ddl.DataTextField = "Description";
ddl.DataValueField = "ID";
ddl.DataBind();
ddl.SelectedIndex = -1;

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Web Forms :: Selected Value Not Getting Displayed In Dropdown List?

Dec 29, 2009 11:26 AM

I have an aspx page that contains a drop down list that contains the list of countries.

i also have a button on the page for post back purposes.

when i click the button,i want to change the selected value of the drop down list that should be displayed on the postback in the dropdown list as the 0 index.

The value is getting selected as i can check through a label control but the selected value is not getting displayed at the 0 index as it should be.kindly let me know how i can i display the selected value at 0 index on the post back.

[Code]....

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C# - Cant Set Dropdown List Selected Value In Page Load

Jun 3 10 at 4:31

I'm trying to set the selected value of a ddl during page load ie. before databind.

This causes "selected value does not exist" errors. So I force a databind, and add a new element if it does not exist in the data source.

However it looks like when the databind is performed later in the page lifecycle that my added element(s) are removed/overwritten.

Am I setting the values in the wrong part of the life cycle?

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C# - Dropdown List Selected Item Always Set To Default Value

Jan 17 at 18:37

I wish to pass values of the selected items into a database and however noticed that the selected item is not what is sent into the database you can see in the snap shot below. during run time the following value is recorded. Where did it all go wrong with the dropdown lists selected item? Counting on your intelligence.

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Dropdown List Not Saving The Selected Value To Database

May 3 10 at 9:49

In the following code i want to save the value selected by user from drop downlist into database. but whatever value is selected by user, first value of dropdown lsit is saved to database

View
<% =Html.DropDownList("lstUsertype", (SelectList)ViewData["UserTypeID"])%>
Controller
public ActionResult CreateUser()
{
UmUser _UmUser = new UmUser();
UMRepository _UMRepository = new UMRepository();
EvoLetDataContext db = new EvoLetDataContext();
ViewData["UserTypeID"] = new SelectList(_UMRepository.FillUserTypes(), "UserTypeID", "UserType",2);
return View(_UmUser);
}
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult CreateUser(UmUser _umUser)
{
//try
//{
if (ModelState.IsValid)
{
//try
//{
UserRepository _UserRepository = new UserRepository();
_UserRepository.Add(_umUser);
_UserRepository.Save();
return RedirectToAction("Details", new { id = _umUser.UserID });
/*}
catch
{
ModelState.AddModelErrors(_umUser.GetRuleViolations());
}*/
}
return View();
//}
/*catch
{
return View();
}*/
}

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MVC :: Database Not Updating With Dropdown List Selected Value

Mar 18, 2010 10:34 PM

I have a dropdown list which I am populating using the following code:

[Code]....

Fitter: <%--<%= Html.TextBox("Fitter", Model.Fitter)%>--%> <%= Html.DropDownList("Fitter", Model.Fitter)%> <%= Html.ValidationMessage("Fitter", "*")%>

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