Setting tooltip on column headers in a datagridview

How to show the tooltip only on the column headers(not on other cells) of a datagridview, when the datagridview is databound?

Hi TuffyP,
In order to display the tooltip only in the header cells but not other cells, you need to disable the built-in tooltip showing functionality, and defines a new tooltip and show it when your mouse enters into the column header cells.
The following is steps and code:
1.       Disable built-in tooltip by setting the showcelltooltip property of DataGridView to false.
Code Snippet
this.dataGridView1.ShowCellToolTips = false;
2.       Add CellMouseEnter event handler for DataGridView.
Code Snippet
this.dataGridView1.CellMouseEnter += new DataGridViewCellEventHandler(dataGridView1_CellMouseEnter);
3.       Implement dataGridView1_CellMouseEnter method
Code Snippet
        void dataGridView1_CellMouseEnter(object sender, DataGridViewCellEventArgs e)
            if (e.RowIndex == -1 && e.ColumnIndex!=-1)
                tt.SetToolTip( this.dataGridView1,this.dataGridView1.Columns[e.ColumnIndex].HeaderCell.FormattedValue.ToString());
            else
                tt.Hide(this.dataGridView1);
If you have problems with the code, please don’t hesitate to let me know.
Best Regards,
Bruce Zhou

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http://odiexperts.com/oracle-to-flat-file/
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Ian
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I always export excel(97-2003)data only with Column width based on objects in the details & checking Export object formating, Maintain relative object position, Maintain column alignment, export page header and page footer, Simplify page headers.
Allow fields to grow is off on everything during exports.
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Edited by: Debi Herbert on Oct 5, 2011 10:07 AM

Setting tooltip on column headers in a datagridview

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