Setting selected value on a dropdownlist from codebehind in a repeater in a formview

Question

So here\'s the situation. I have a dropdownlist in a repeater that is inside a formview.

And the really special part is that the repeater is being used to add multiple r

Answer 1

If the value cant be set just int the drodownlist tag like...

SelectedValue='<%# Eval("ColumnWithValue")%>'

... then you need to work with OnItemDataBound

Basically:

On repeater tag, add this attribute:

OnItemDataBound="FormatRepeaterRow"

On page code-behind:

protected void FormatRepeaterRow(Object sender, RepeaterItemEventArgs e)
{
     if( (e.Item.ItemType == ListItemType.Item) || ( e.Item.ItemType == ListItemType.AlternatingItem)) 
     {
      ((DropDownList)e.Item.FindControl("ddlType")).SelectedValue = "a_value";
     }          
}

Answer 2

you can bind the SelectedValue property of Dropdown in your markup page i.e

<asp:DropDownList ID="ddlType" runat="server" DataSourceID="SqlDataSource26" 
   DataTextField="tt_type" DataValueField="tt_id" 
   SelectedValue='<%# Eval("ColumnName")%>'>
 </asp:DropDownList>

Hope, this will fix your problem.