Remove all rows selection option from datagridview topleft cell click in c#

Question

I am using Data Grid View control in my project and the requirement is below. Row Headers Visible = true, Column Headers Visible = true, Multiple Select = true, Selection Mode = Full Row Select. Allow multiple rows selection true but do not allow to select all rows when user clicks on top left cell.

Please help me!!!!!!!

user1573918 · Answer 1 · 2012-08-24T11:53:46.693

0

The top left cell's only purpose is to select all the cells, I don't think that could be disabled.

In any case you can use a if condition to check whether all the rows are selected and proceed accordingly.

ps: I am new to C# and dont know much

edited Aug 24 '12 at 11:53

answered Aug 06 '12 at 10:50

user1573918

3
3

I am able to deselect all rows using if condition, but it's looks like a flash. When i click top left cell, in the Cell_Click() event first it selects all rows then it executes my code. It's looks like a blink. Do you have any idea to remove blink? – Marulasiddesha Aug 07 '12 at 06:18

score 0 · Answer 2 · edited May 23 '17 at 12:12

0

Thanks to @anchandra response from this other SO thread you may accomplish that behavior by overriding the OnCellMouseDown behaviour:

protected override void OnCellMouseDown(DataGridViewCellMouseEventArgs e)
{
    if (e.RowIndex == -1 && e.ColumnIndex == -1) return;
    base.OnCellMouseDown(e);
}

edited May 23 '17 at 12:12

Community

1
1

answered Aug 24 '12 at 12:09

Luis Quijada

2,345
1
26
31

score -1 · Answer 3 · answered Aug 05 '17 at 06:22

-1

Set the RowHeadersVisible to false.

answered Aug 05 '17 at 06:22

SuperMario

1

Remove all rows selection option from datagridview topleft cell click in c#

3 Answers3