AJAX :: Cascade Dropdown - Give An "undefined" Data In State Dropdown Only?
Aug 5, 2010
I am using Cascade dropdown the basic code which i used write down below i am reading data from xml file for Country,State,City.before sometime it was work fine but now it give me an "undefined" data in state dropdown only.
Basically i make a user control on this page my design code are as follow
[Code]....
and on one aspx page i call this control and put a one webmethod for state dropdown
[Code]....
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Jan 29, 2011
I am using ajax cascading dropdown list one of my program. my code given below.
<asp:DropDownList ID="drpSeason" runat="server"></asp:DropDownList>
<cc1:CascadingDropDown ID="drpSeason_CascadingDropDown" runat="server" Enabled="True"
TargetControlID="drpSeason" ServicePath="Cascade.asmx" ServiceMethod="GetDropDownCategories" Category="category" PromptText="[Season]"> </cc1:CascadingDropDown>
<asp:DropDownList ID="drpb_SalesNo" runat="server" Width="70px"></asp:DropDownList>
<cc1:CascadingDropDown ID="drpb_SalesNo_CascadingDropDown" runat="server" Enabled="True"
TargetControlID="drpb_SalesNo" ParentControlID="drpSeason" ServicePath="Cascade.asmx"
ServiceMethod="salesNo" Category="Sales" PromptText="[Sale]"> </cc1:CascadingDropDown>
And my webservice code given below:
[Code] ....
My Cascading dropdown list work properly. But when I am trying to save my data by below code:
[Code] ....
My Add button doesn't post back. If I delete my cascading dropdown then my code work properly.
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Jan 5, 2010
I have 2 dropdowns, 1 regular and the other child dropdown has a cascadingdropdown component attached to it.In the past I have used 2 cascadingdropdowns but I'm not sure if the 1st is necessary as it is not being populated by any other dropdown. Can someone confirm this is the case?econdly, in the webservice used by the cascadingdropdown, the key value passed into the webservice function call has 'undefined:x' where x is the value selected. How can I ensure that the category is set correctly? Is this because the parent drop downisn't a cascadingdropdown? Is this a problem, or should I just parse for 'undefined'?
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Feb 21, 2011
I would like to find a solution to my problem. In these senario I've got two pages.
First page:
5 dropdowns in updatepanel and a gridview in updatepanel
Second page:
Displays info of the selected row
Problem:
So if a user makes a selections on all dropdownselection and selectes to view a row, wich in this case goes to page2 for more info.
But when the user returns to page1 all the selections and gridview has the "default" values so to speak, and not what the user has selected.
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Jun 4, 2010
I have an application that I am writing in ASP.NET MVC 2 following the Nerd Dinner tutorial. I am very much a beginner and was looking for examples/tutorials I could follow that would enable me to learn how to code the following scenario:A user has the option to select an option from a dropdown.If the option is not there then they can enter a new option and add it to the database and list in the dropdown.
I would like this to be done without the user leaving the page and what they have entered so far.I am using a simple Entity Framework 4.0 model which I have built a repository on top of so I have methods I can call to save the filled in user information.If the entry already exists in the database then I would like to offer the user the chance to either select that entry or to continue adding the entry they request because it can be a list of names and of course you can have more than one person with the same name.
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Mar 4, 2011
I have a gridview where i have two fields. one is product and second is sub category.
I need to do 2 things.
1. I need to populate the two combos from the database. But depending what is selected in dropdown 1 this will determine what needs to be populated in drop down 2?
how can i achieve this?
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Oct 14, 2010
I have two dropdown linked with sqldatasources.When I select item in ddl1 then on the basis of selection ddl2 is being loaded.Is there any possiblity that if I select ddl2 then ddl1 will also load on the basis of selection?
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Sep 3, 2010
i have a dropdown with month names if the user has data for the month tht is selected then gridview displays the rows with day nos as per the month but if the gridview has no data for the same the dropdown or gridview via some event should call a insert procedure to insert data into the table for tht month with daynos ad rebind the gridview witht the rows just created
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May 7, 2015
I want to display the selected value from gridview in a dropdownlist.Here I am not getting the Dropdown from Database as it contains two values.After getting the data user can modify the DDL and change the selection.The data type where the values are saved is declared as Bit.
<asp:Label ID="lblQuery" CssClass="labelbold" runat="server" Text="Query"></asp:Label>
<asp:TextBox ID="txtQuery" runat="server"></asp:TextBox>
<asp:Label ID="lblStatus" CssClass="labelbold" runat="server" Text="Active Status"></asp:Label>
<asp:DropDownList ID="ddlStatus" runat="server">
<asp:ListItem>--Select--</asp:ListItem>
[code]....
Till here it works fine how do I fill the dropdown from database.Eg Active text is coming from Database,so DDL should show Active along with Inactive value.
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Jul 29, 2010
I've currently got a form with two dropdown boxes on, and an XML file sitting on the site.
My two drop down boxes are Location and Date and what i'm trying to do it get the Location box to filter the XML and put the dates in the Date dropdown box.
I'm using C#.
Unfortunatly, its not working.
My code is:
[Code]....
and my XML is like this:
[Code]....
why my dropdown boxes are not being populated?
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Nov 26, 2010
How we can create country state city dropdown in asp.net?
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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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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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Jun 12, 2010
I Have the gridview control with 2 dropdown list and 2 text boxes,When the textbox chnaged event happen 1 row will create and the dropdown back to initial values( its not retaining the selected values),I am binding the control after text changed method,Is there any properties needs to be set or any other way we can retain the values in postbacks?
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Jul 9, 2010
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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Sep 16, 2010
I am a complete newcomer to ASP.NET. However in the few weeks I have been playing with it I have got pretty far and have mastered things like stored procedures, gridviews, formviews and templates.I have a dropdown box which is populated from SQLDataSource1
I have a second dropdown box which is populated from SQLDataSource2, but i need the query feeding this to be dependent on what was selected in the first dropdown box. I assumed it would simply be a case of modifying the select statement on SQLDataSource2 using the SelectedIndexChanged event on the first DropDownList to update the second SQL source, but I cannot work out for the life of me how to do it. Pretty much all of the code I have is ASP.
can i do this purely in ASP rather than using VB behind the scenes or do I need to use VB? I am pretty comfortable with vb.net but one of the other issues I have is referencing an ASP object from VB... so for instance if I had a text box in ASP, how can I read or change the properties of this object from VB?
FYI I am using Visual Studio 2010 and SQL/Server
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Aug 14, 2010
creating a dropdown similar to the time dropdown in outlook, located in the recurring event. The dropdown shows intervals of 30 minutes based on a 12 hour time format and allows the ability to put text in it.
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Mar 11, 2014
I have seen article in code snippet but i have never used web services so that is complicated .
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Oct 22, 2010
how to populate a dropdown list box based on selected value in another.
dropdown list box? Say, for example, the first dropdown is a list of car manufactures. When a user selected a manufacture from that dropdown list, the second dropdown would list would automatically gets populated with all the car models for that manufacture.
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Dec 9, 2010
I have a dozen tables, and two dropdown lists.The first drop down list shows the table names. The second dropdown list needs to be poulated with the data from the specific table selected in the first dropdown list.I wrote a stored procedure that will query the selected table name choosen in the the first dropdown list. My results though are only showing this...
[Code]....
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Jun 11, 2010
I'm having a problem with using a dropdown to filter the contents of another drop down. The basic idea is:
Dropdown 1 = CountryList (Column1)
Dropdown 2 = StateList (Column2)
I read the contents of a CSV file and populate the gridview. The user then visually verifies that the data is valid and proceeds to upload to the database. To do some testing, i have intentionally changed spellings of country names so they DO NOT match the countrylist which the grid view then flags with a different background indicating bad data. The user then edits the gridview. The Country and state columns then show a drop down control populated with the country list and filtered states list based on countryID.
Here's the ASP.NET ASPX Source for the section of code that is dealing with the gridview
[Code]....
Here's the section of VB Code behind that deals with handling the "RowEditing", specifically the binding of the dropdowns
[Code]....
The proglem is that these dropdowns are ment to easily fix minor errors in data. When i intentionally changed the spelling of "Canada" to Canadaa", this has no corresponding CountryID in the table and the ddlEdtStateID Dropdown's datasource filter does not work. I tried setting the datasource to nothing if a valid CountryID was not there and then i tried to use the SelectedIndexChanged event for the ddlEditCountryID to programmatically set the datasourceID for ddlEditStateID but when i try using CType(FindControl("ddlEdtStateID"), DropDownList) to set the DataSourceID, it does not find the control.
If the Country does not exist, then i just want the stateslist dropdown to say "select a country" but when a valid country is selected, it should display the filtered list for that countryID. Right now, if bad data is entered for the country, then the program crashes when it tries to populate the state drop down. I want it to just say, select a country when the countryID is not valid.
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Nov 15, 2010
This is probably something fundamental and stupid that I've missed, but the various workarounds are causing me such huge headaches that really, I need to understand the basic problem here in order to find the best solution. I have a usercontrol which contains a drop-down list.
<asp:DropDownList ID="ddlOrderStatus" AutoPostBack="true" runat="server" CssClass="textbox">
<asp:ListItem value="8">Pending</asp:ListItem>
<asp:ListItem value="9">On Hold</asp:ListItem>
<asp:ListItem Value="11">Complete</asp:ListItem>
<asp:ListItem Value="12">Cancelled</asp:ListItem>
</asp:DropDownList>
It does nothing in its Page_Load event. This is in turn contained in a page which, in it's Page_Load event does some databinding on some repeater controls on the page but doesn't touch the control containing the ddl. There is no ajax on the page. The dropdownlist is - clearly - set to autopostback = true. The postback code looks like this:
Private Sub ddlOrderStatus_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ddlOrderStatus.SelectedIndexChanged
Dim ddl As DropDownList = DirectCast(sender, DropDownList)
Dim currentsorting As String = Request.QueryString("sort")
Dim currentpaging As String = Request.QueryString("page")
Response.Redirect(String.Format("~/admin/orders/Manage/0?sort={0}&page={1}&status={2}", currentsorting, currentpaging, ddl.SelectedValue))
End Sub................................
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Feb 2, 2011
i am entering the value in a txtCountry and txtState if the other country and other state option is been selected. while i am entering the otherCountry and OtherState option at the dropdown lists Databound event.
so at the time of getting the data from database if the other option is selected then i am giving the variable value to the txtCountry and txtState likewise. but here i am not getting the exact output and getting error.
my code looks like below.
[Code]....
in above Code the ViewData function gets the data at edit time from the database
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Oct 6, 2010
I wanted to know the best practice for caching data. Say I have some control example a dropdown list which is populated from my db. Now this dropdown is global and used across many pages. I was thinking of not going to database everytime to fetch data for this dropdown and put the result in Cache. And then populate this dropdown from cache. Is this a good practice or if there is another approach. Can I store my datareader in cache and then use it globally. Also could I do this in application start event?
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Mar 16, 2011
I have dropdown1 that has some items in it.I also have dropdown2 that gets populated from a database based on whatever is selected from dropdown1.Dropdown2 has its first item as "Make Selection" and then appends the data from the db based on what was selected in dropdown1.
Now when I select an item from dropdown1 it puts the correct data in dropdown2 but as soon as I select another item from dropdown1 it appends those values into dropdown2. How can I remove the values from dropdown2 after a new item is selected from dropdown1?
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