Web Forms :: Dropdown List Display Empty Whenever The Page Loads?

Jun 29, 2010

I have a dropdown list that is populated by certain information. However, though, I would like the dropdown to be empty whenever the page loads.

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Web Forms :: DropDownList - Page Loads Initial Value Should Blank Until Clicking The Dropdown Button

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i have dropdownList Binded to a data source and its working fine But want i want to do is when the page loads its initial value should Blank until clicking the dropdown button

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MVC :: Following Overview Video - Dropdown List Empty

May 12, 2010

I'm new to MVC and trying to follow along to the 10-minute overview video at: [URL]. I'm running into a couple of problems starting at the 3:30 mark:

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[Code]....
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When I click on the Alphabets it will show the details of a player...however, when that particular letters has no details of the player..I want to show."No results can be found"..Is there anyway to do it?

protected void Page_Load(object sender, EventArgs e)
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[code]...

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Javascript - Dropdown List Returning Selected Value Empty?

Aug 11, 2010

I use to populate Dropdown using javascript:

function populateDDL(ddl_id) {
var option_str = "";
var x;
for(x in datalist){
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This is sure the datalist is not empty and also Dropdown list populated perfectly..but dnt know why after clicking on my page add button I am not getting the selected value.

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Set A Focus On A Dropdown Within GridView (gridViewDropDown Class) When Page Loads

Apr 13, 2010

I am trying to set a focus on a dropdown within GridView(gridViewDropDown class) when page loads:

if ($('select.gridViewDropDown').length)
{
alert("Found my dropdown");
//$('select.gridViewDropDown:first').focus();
setTimeout(function() { $('select.gridViewDropDown').focus(); }, 10);
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I can see the alert which means that dropdown is found but it never gets a focus. What do I need to change here? I am using IE 6/7.

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Sep 8, 2010

Does anyone know how to do this so when I select something the 1st dropdown and the 2nd one becomes visible and populates list from a Select statement. I really need help on how to do in an aspx and not on the code behind page.

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Mar 21, 2010

I am maintaining a website that has .Aspx web pages with no code behind C# files. This has been a challenge for me, because I need to do the following:

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Nov 10, 2010

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
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Web Forms :: How To Display Quarter Months In DropDown List

Jan 7, 2011

I have a dropdown list where i wanted to display months in reversed quarterly format based on the current month.

for eg. if this is the month of January 2011.. so the list has to display from the previous quarter onwards....

the dropdown list has to display:-

Oct 2010 - Dec 2010
Jul 2010 - Sep 2010
Apr 2010 - Jun 2010
Jan 2010 - Mar 2010

and so on...

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Web Forms :: Display In Textbox From Database Using DropDown List

Jul 2, 2010

the following content I created a table (Workers) with two columns(username,userid). Now i have Dropdownlist and textbox. Dropdownlist for Userid, Textbox for Username. If i click on the userid in dropdownlist, then the particular username should get displayed on the textbox. For this i have tried codings.

private void DropDownList()
{
OleDbConnection databaseConnection = new OleDbConnection(ConfigurationManager.ConnectionStrings[1].ConnectionString);
databaseConnection.Open();
OleDbDataAdapter dataAdapter = new OleDbDataAdapter("Select userid from workers", databaseConnection);
DataTable dataTable = new DataTable();
dataAdapter.Fill(dataTable);
DropDownListMaterials.DataSource = dataTable;
DropDownListMaterials.DataTextField = "userid";
DropDownListMaterials.DataValueField = "userid";
DropDownListMaterials.DataBind();
}
protected void DropDownListMaterials_SelectedIndexChanged(object sender, EventArgs e)
{
OleDbConnection databaseConnection = new OleDbConnection(ConfigurationManager.ConnectionStrings[1].ConnectionString);
databaseConnection.Open();
OleDbCommand MyCommand = new OleDbCommand("select username from gridview where userid=('" + DropDownListMaterials.SelectedItem + "')", databaseConnection);
TextBoxUsername.Text =
}
private void DropDownList()

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Sep 15, 2010

I have the following code so it'll show an animated progress GIF but if the site takes longer than this, it will quit. Is there a more effective way?

[Code]....

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

Oct 10, 2010

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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Web Forms :: Label Control Can't Display The Value Selected In Dropdown List

Jan 18, 2011

I try to display the selected value with dropdown list by using label control but cant display it in firefox but works fine in internet explorer.

Below are my code:

[Code]....

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Web Forms :: Display Information On Label Based On Dropdown List?

Nov 12, 2010

I have a table that has 3 columns, ID NAME DESCRIPTION at the moment, i have a drop down binded to name(bring back a list of names) simple enough!

now i want to put a label next to the drop down so that what ever is selected , it would show a label description next to it...

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Web Forms :: Is It Possible To Display The Items In A Dropdown List Not By The Order Of Insertion

Jul 7, 2010

Is it possible to display the items in a dropdown list not by the order of insertion?

i want to display the orders alphabetically.

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Forms Data Controls :: Display Two SQL Column Values In One Dropdown List

Apr 16, 2010

Is it possible to display two column values from a SQL database in to one DDL? I have been trying to write a SQL query, where in I select two fields to be displayed in the DDL but when I run the application it only displays one. Not sure why. Here is my code below:

<asp:DropDownList ID="DropDownList8" runat="server"
DataTextField="LATA"
DataValueField="LATA"
onselectedindexchanged="DropDownList8_SelectedIndexChanged"
DataSourceID="SqlDataSource1">
</asp:DropDownList>
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%&#36; ConnectionStrings:Inventory_DBConnectionString %>"
SelectCommand="SELECT DISTINCT [LATA], [LATA Name] AS LATA_Name FROM [CA] WHERE ([SWITCH ID] = @SWITCH_ID)">
<SelectParameters>
<asp:QueryStringParameter Name="SWITCH_ID" QueryStringField="ddl1"
Type="String" />
</SelectParameters>
</asp:SqlDataSource>

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Forms Data Controls :: Display Gridview Based On Dropdown List Selection?

Feb 21, 2010

I'm having trouble figuring out how to display a gridview based on the selection of a drop down list. I manually entered the drop down list items, but in the configure/choose data source I don't understand how you make a relationship between each list item and the corresponding database table you want to show.

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Forms Data Controls :: Choose Item From Dropdown List And Display In A Separate URL?

Sep 1, 2010

I've a dropdown list for departments (engineering, bio, chemistry,physics etc.) when somebody choose the departments from the dropdown list, it displays the opening closing time(hours) in a detailsview controls.

I have separate homepage for these departments ( these are the static html pages and no way to send querystring value) and I want to link the hours for each department from the departmental homepage.

When I choose the department from the DDL, everytime it's the same URL.

How can I solve the problem So that I can point the respective hours from the respective departments ?

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Forms Data Controls :: Create A Dropdown List That Concatenates Two Values In The Display Field?

Feb 10, 2010

I have a table that has 3 fields (Individual-Id, LastName, and FirstName). I want to create a drop down table that displays both the FirstName and the LastName (example: Smith, John). The field Individual-Id is the 'value' field.

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MVC :: 2 Cascading Dropdown List - Display

Jan 18, 2011

I have a form that needs to display 3 dropdown lists, one for my client type, then, based on the selection, my second list shows the clients for that type, and then based on the client name, my third dropdown box shows the contacts for that client. The first dropdown list one being a normal html.dropdownlist, and the other 2 being CascadingDropdownLists.

I have followed Stephen Walther's method 1 located at [URL]. If I select my client type, then my client names in my second dropdown shows perfectly, but when I choose my client name, the third dropdown does not work. When I view my page source, all my contacts are listed in my <select> control, but my dropdown box stays blank. Did anyone ever get a third dropdown to work?

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Web Forms :: Bind Dropdown List In Content Page From Value From Master Page

Aug 29, 2010

I have applied nested master page to some page. Now i want to bind drop downlist from value selected in dropdown list in master page of master applied to that page.

the hierarchy of pages is

mypage.aspx -> main.aspx -> inner.master

I want bind dropdown list in mypage.aspx from from value selected in dropdown list in inner.master

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Web Forms :: Why Dropdown List Getting Reset After The Page Refreshes

Apr 9, 2010

I have a created a form using a user control. One of the dropdownlists in the form is populated after the user makes a specific selection from another dropdownlist...i.e. a dependent dropdown list. This is triggered using the SelectedIndexChanged event handler on the controllling dropdownlist.

The dependent dropdownlist gets populated correctly, but when I choose one of the options and go to submit the form, the dependent dropdown list is reset and doesn't maintain the selection that was made.

The controlling dropdown list ID is "level". The dependent dropdown list ID is "EnrollmentSize".

The "EnrollmentSize" DDL only losses the option that was selected. The DDL is sitll populated with all the correct values. It only losses the option that was selected and goes back to the first option...i.e. "Select..."

The viewstate on the page is enabled and all the other form values are maintained. It is only happening with the EnrollmentSize ddl.

I've set breakpoints and tried debugging and I do see that the EnrollmentSize.SelectedValue is an empty string, but I don't see why or where that is happening in the button click event

I thought it had something to do with EnableViewState,but that is set to true and has no bearing. Everytime I try to submit the form, the "EnrollmentSize" DDL is reset and doesn't maintain the option that is selected.

[Code]....

[Code]....

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How To Retrieve A List Of The Empty Labels On A Page

Jul 14, 2010

I have some labels on my Page (e.g. Label1...Label100).

I don't want to loop through all Labels to check if Text property is = "" (or string.Empty, whatever), so this's my question - is it possible to use LINQ or Lambda Expression to get all "empty" labels ?

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Web Forms :: Strange Dropdown List Behavior On Page Load?

Apr 3, 2010

I have a page with 14 dropdown lists. In the first page load (ie. not isPostback) I set the selectedIndex of the dropdownlists individually but I find that they are all set to the value I use for the last dropdownlist set. Here is the code

comboFirstJudge1.SelectedIndex = 0
comboFirstJudge2.SelectedIndex = 0
<so on for all the dropdown lists until the last one>
comboFirstJudge14.SelectedIndex = 4

The result is that all dropdown lists have SelectedIndex = 4. If I run the same code on a postback it works just fine (the first lists have SelectedIndex = 0 and the last one = 4).

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