Datagridview cell balloon tip

[guitardave78]

Is it possble to give a cell in a datagridveiw a balloon tooltip with vb2005

}...the bane of my life!

http://www.fuzzyd.co.uk

 

[SHelton]

Yes, but you can't just set the ToolTipText property of the cell as you'll get a standard tool tip.

You need to add a ToolTip control to the form, and set the IsBalloon property to True. Set the ShowCellToolTip property of the DataGridView to False. In the CellMouseMove handler of the DataGridView add the following:

If e.RowIndex >= 0 AndAlso e.ColumnIndex >= 0 AndAlso dgv(e.ColumnIndex, e.RowIndex).ToolTipText <> "" Then

    Dim r As Rectangle = dgv.GetCellDisplayRectangle(e.ColumnIndex, e.RowIndex, false)

    Dim pt As Point = new Point(r.Location.X + (r.Width / 2), r.Location.Y + r.Height)

    tt.Show(dgv(e.ColumnIndex, e.RowIndex).ToolTipText, dgv, pt, 10000)

End If

This fixes the balloon at the mid point of the bottom of the cell, wherever the pointer is within the cell. Obviously you can adjust the duration to suit your requirements.

In the CellMouseLeave event, put the following:

tt.Hide(dgv)

Whenever a cell has a ToolTipText that is not an empty string, the balloon will be shown.

 

[guitardave78]

I tried that, but the balloon flashes the entire time the mouse is there.

}...the bane of my life!

http://www.fuzzyd.co.uk

 

[SHelton]

Make sure that the ToolTip on... property of the DataGridView is not set, and that the ShowCellToolTip property is set to False.

 

[guitardave78]

I have seen it before. It only affects it if you are using the isBalloon = true
Plain tool tip does not flash.

}...the bane of my life!

http://www.fuzzyd.co.uk

 

[SHelton]

What OS are you using ? The balloon doesn't flash in XP Pro.

 

[guitardave78]

xp pro

}...the bane of my life!

http://www.fuzzyd.co.uk

 

[guitardave78]

Dim clst As New DataGridView
      with clst
         .Add("Content", "Task")
         .Item("Content").AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill
         .Item("Content").MinimumWidth = 100
         .EditMode = DataGridViewEditMode.EditOnF2
            .DefaultCellStyle.WrapMode = DataGridViewTriState.True
         .RowHeadersVisible = False
         .GridColor = Color.LightGray
         .AlternatingRowsDefaultCellStyle.BackColor = Color.FromArgb(255, 220, 220, 220)
         .ShowCellToolTips = False
         .Height = main.Height - 25
         .ScrollBars = ScrollBars.Both
       end with
clst.Rows(0).Cells("StartDate").Value = "blah!"

}...the bane of my life!

http://www.fuzzyd.co.uk