Hi All,

I have a datalist with some questions True/False. I add edit, update and cancel buttons so the user can modify his/her answers.

The problem is the following: I hit the edit button goes and selects first radiobutton value(true)always. I try to wirte a code for the datalist Ondatabound...but seems no to work at all.

How do I program the radiobutton to select whatever I have in DB.

<asp:RadioButtonList id="ddlNew" runat="server">
  <asp:ListItem Value="1">Yes</asp:ListItem>
  <asp:ListItem Value="0">No</asp:ListItem>
</asp:RadioButtonList>

Thanks.

1. Don't cross post.
2. Is it a radio button problem or a dropdownlist problem? You said radiobutton in your post then show a dropdownlist in code??

"The one language all programmers understand is profanity."

I'm sorry.. I mean

<asp:RadioButtonList id="rbNew" runat="server">
    <asp:ListItem Value="1">Yes</asp:ListItem>
    <asp:ListItem Value="0">No</asp:ListItem> </asp:RadioButtonList>

This is what I do inside of editable datagrids

<asp:DropDownList ID="ddl" Runat="server" SelectedIndex="<%#iValue%>" DataValueField="value" DataTextField="text" DataSource="<%#datatable%>">
</asp:DropDownList>

What this means to you, when the method that handles your OnEditCommand is fired, you should populate a datatable with values from a database (In your case it would look something like this)

Value Text
0 No
1 Yes

Your selectedIndex will either be 0 or 1 (this isn't necessariliy the VALUE) so you would set up a program logic that counts looping through the records in the datatable, when it finds the value the corrosponds in the datatable, that will be your selectedindex.

For this to work correctly, the above dataset needs to be stored in a Datatable declared as PUBLIC (in this example the datatable should be named datatable) you will need to loop through the values in this datatable and compare the values stored in the datatable to the value stored in the database and increment the value iValue on each pass. When a match is found exit the loop, the value iValue will have the correct selectedIndex (iValue also needs to be declared as public).

This will set everything up so the default values of your list match your database.

"The one language all programmers understand is profanity."

Thanks for replying...

Do you have any code sample? I'm kind of lost when you say to create a datatable inside the editcommand.

No no. The OnEditCommand of a datagrid points to a sub routine in your code behind file, that is where you create the datatable.

So essentially you are creating public variables in your code behind, when you click the edit button the sub routine executes and those values then become populated and then are shared with your radio button.

"The one language all programmers understand is profanity."

But I'm using a datalist...is that matter

No, sorry for the confusion; datagrids and datalists both use the OnEditCommand, it should work the same for a datalist as it does for a datagrid.

"The one language all programmers understand is profanity."

 How do I do this "..you will need to loop through the values in this datatable and compare the values stored in the datatable to the value stored in the database and increment the value iValue on each pass... "

Loop throught the table? I'm sorry I'm just a beginner.

for each Row in the datatable
  if [value from the database] = [current value of the row] then exit for
  iValue += 1
Next

This code obviously won't compile, its just pseudo-code, but you get the idea.




"The one language all programmers understand is profanity."