GDBG Custom Color Multi Select Problem

[Ivan Moskvic]

Hello!
Q1. I have figured out how to change selection color in my GDBG in ListBoxSelectionMode = SelectionMode.One.
There I used grid.AlphaBlendSelectionColor = Color.FromArgb(0, grid.AlphaBlendSelectionColor) to get rid of AlfaBlend colors and use my selection color. But when I switch to ListBoxSelectionMode = SelectionMode.MultiExtended the multi selection did not seem to work. When I commented out the above line the selection worked but used AlfaBlend color. So how can I use custom selection color for SelectionMode.MultiExtended?
Attached is the problem sample code.

Q2. In SelectionMode.MultiExtended when I move mouse (with left button down) multiple rows get selected. It is not a wanted behavior. What event should I handle in GDBG to cancel the selection.

Please help. Thanks a lot!


GDBGMultiSelectColor.zip

[Administrator]

Hi Ivan,

Regarding Question 1:

Please try this code

private void gridDataBoundGrid1_PrepareViewStyleInfo(object sender, GridPrepareViewStyleInfoEventArgs e)
{
if (this.gridDataBoundGrid1.Selections.Ranges.AnyRangeContains(GridRangeInfo.Row(e.RowIndex)))
{
e.Style.BackColor = selection_color;
e.Style.TextColor = SystemColors.HighlightText;
}
}

Regarding Question 2:

You can handle the Model.SelectionChanging event and set e.Cancel to TRUE to cancel the selection when the mouse move over the cell. Here is a code snippet

//Form Load event.
this.gridDataBoundGrid1.Model.SelectionChanging += new GridSelectionChangingEventHandler(Model_SelectionChanging);

void Model_SelectionChanging(object sender, GridSelectionChangingEventArgs e)
{
if (e.Reason == GridSelectionReason.MouseMove)
e.Cancel = true;
}

Here is a modified sample.
GDBGMultiSelectColor.zip

Best Regards,
Haneef

[Ivan Moskvic]

Works now... Thanks a lot!!