How to change the GridViewHeaderCellElement Mouse hover Color

[Rangadurai]

Hi,

How to change the GridViewHeaderCellElement Mouse hover Color through code Instead of using style builder. Please help on this very urgent.

[Stefan]

Hi Rangadurai,

Thank you for writing.

Here is how using the MouseMove and the ViewCellFormatting event, you can achieve the desired functionality:

void radGridView1_ViewCellFormatting(object sender, CellFormattingEventArgs e)
    {
        if (e.CellElement is GridHeaderCellElement && e.CellElement.Tag != null && e.CellElement.Tag == "IamHoveredCell")
        {
            e.CellElement.BackColor = Color.Red;
            e.CellElement.GradientStyle = GradientStyles.Solid;
            e.CellElement.DrawFill = true;
        }
        else
        {
            e.CellElement.ResetValue(LightVisualElement.BackColorProperty, ValueResetFlags.Local);
            e.CellElement.ResetValue(LightVisualElement.GradientStyleProperty, ValueResetFlags.Local);
            e.CellElement.ResetValue(LightVisualElement.DrawFillProperty, ValueResetFlags.Local);
        }
    }
    GridHeaderCellElement lastHoveredCell;
    void radGridView1_MouseMove(object sender, MouseEventArgs e)
    {
        if (lastHoveredCell != null)
        {
            lastHoveredCell.Tag = null;
            lastHoveredCell.UpdateInfo();
        }

        GridHeaderCellElement cellElement = radGridView1.ElementTree.GetElementAtPoint(e.Location) as GridHeaderCellElement;
        if (cellElement != null)
        {


            cellElement.Tag = "IamHoveredCell";
            lastHoveredCell = cellElement;
            cellElement.UpdateInfo();
        }
    }

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

I hope this helps. 

All the best,
Stefan
the Telerik team

[Rangadurai]

Hi Stefan,

Thanks for your support.
your suggestion works like charm.