Question

I am developing an application using C#. I am using RadioButtonlist control inside a TreeView. I am getting collection of items from database. Based on the collection items I need to select the Radiobuttonlist items.

For example from the database i got the Collection in this way: Read(R) Write(W)

based on this colletion i need to set up the user permissions.

Answer 1

If I get your question right you want to bind that radiobutton list based on the items in the database based on the current row item on the grid. If thats the case here is your solution.

Lets say you have a Grid called myGrid, a RadioButtonList called myRadio and a HiddenField called myHidden (this is where you bind the value you have on “R” and “W”)

All you have to do is when a RowDataBound Event Occurs then you have to assign the value to myRadio

for Example, you have a RadioButtonList like such

<asp:RadioButtonList ID="myRadio" runat="server">
    <asp:ListItem Value="R">Read</asp:ListItem>
    <asp:ListItem Value="W">Write</asp:ListItem>
</asp:RadioButtonList>

So your code behind should look like this

protected void myGrid_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        RadioButtonList rdoAnswer = (RadioButtonList)e.Row.FindControl("myRadio");
        HiddenField hdnValue = (HiddenField)e.Row.FindControl("myHidden");

        rdoAnswer.SelectedValue = hdnValue.Value;
    }
}