How to make Gridviewcomboboxcolumn item not selectable

[Uday]

hi telerik,

how to make Gridviewcombobox column element not selectable based on some condition, and also how to set that element background colour to some other colour(like gray).


Thanks

Uday

[Stefan]

Hi Uday,

Thank you for writing.

The correct place to disable a CellElement is the CellFormatting event. Here is a small sample demonstrating how to do that upon some condition:

public Form1()
{
    InitializeComponent();
    GridViewDecimalColumn c = new GridViewDecimalColumn("id");
    radGridView1.Columns.Add(c);

    GridViewComboBoxColumn col = new GridViewComboBoxColumn("combo col");
    radGridView1.Columns.Add(col);
    col.DataSource = new string[] { "asd", "qwe", "zxc" };
    radGridView1.Rows.Add(1, "asd");
    radGridView1.Rows.Add(2, "qwe");
    radGridView1.Rows.Add(3, "zxc");

    radGridView1.CellFormatting += new CellFormattingEventHandler(radGridView1_CellFormatting);
}

void radGridView1_CellFormatting(object sender, CellFormattingEventArgs e)
{
    if (e.Column.Name == "combo col" && Convert.ToInt32(e.Row.Cells["id"].Value) == 2)
    {
        e.CellElement.Enabled = false;
        e.CellElement.DrawFill = true;
    }
    else
    {
        e.CellElement.ResetValue(LightVisualElement.EnabledProperty, Telerik.WinControls.ValueResetFlags.Local);
        e.CellElement.ResetValue(LightVisualElement.DrawFillProperty, Telerik.WinControls.ValueResetFlags.Local);
    }
}

More information regarding the capabilities of the CellFormatting event can be found here:  http://www.telerik.com/help/winforms/gridview-cells-formatting-cells.html.

I hope this helps.
 
Kind regards,
Stefan
the Telerik team