Conditional Readonly Columns

[Steele]

I need to make some columns ReadOnly conditionally in Item_DataBound
How to I reference the ReadOnly attributeof the column properly here?
I can't do it in Item_Created because I need the bound DataItem.

The following code is setting the wrong item...

        If (TypeOf e.Item Is GridEditableItem AndAlso e.Item.IsInEditMode) Then
            'switch the Item to Allow Edits of ListName if it is UserDefined
            If DirectCast(e.Item.DataItem, InvoiceItem).ItemTypeID = "U" Then
                'switching wrong row?
                DirectCast(e.Item.OwnerTableView.GetColumnSafe("ListName"), GridBoundColumn).ReadOnly = False
                DirectCast(e.Item.OwnerTableView.GetColumnSafe("Amount"), GridBoundColumn).ReadOnly = False
            End If

The above code sets only the first item in the grid, not the item I am referencing.
I can't seem to access the ReadOnly attribute with anything else.

[Steele]

This works in Item_Databound, but I don't like it because it uses Ordinals...

        If (TypeOf e.Item Is GridEditableItem AndAlso e.Item.IsInEditMode) Then
            'switch the Item to Allow Edits of ListName and Amount if it is UserDefined
            If DirectCast(e.Item.DataItem, InvoiceItem).ItemTypeID = "U" Then
                Dim item = DirectCast(e.Item, GridEditableItem)
                DirectCast(item("ListName").Controls(0), TextBox).Visible = True
                DirectCast(item("ListName").Controls(1), Literal).Visible = False
                DirectCast(item("Amount").Controls(0), TextBox).Visible = True
                DirectCast(item("Amount").Controls(1), Literal).Visible = False
            End If

If there is some better way, please let me know.

[Shinu]

Hi,

Try setting the ReadOnly property for the GridColumn in the PreRender event as shown below.

CS:

 protected void RadGrid1_PreRender(object sender, EventArgs e)
    {
        foreach (GridColumn column in RadGrid1.MasterTableView.RenderColumns)
        {
            if (column.ColumnType == "GridBoundColumn")
            {
                GridBoundColumn col = (GridBoundColumn)column;
                if (col.UniqueName == "Name")
                {
                    col.ReadOnly = true;
                }
            }
        }
    }

Thanks
Shinu.