ToolTipText on Datagrid cell question

[jpack23]

Private Sub dgvGrid_CellMouseEnter(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles dgvGrid.CellMouseEnter

Dim strNote as String

strNote = GetNote()

Me.dgvGrid.CurrentCell.Tooltiptext = strNote

End Sub

This code give me an "Object reference not set to an instance of an object." error

What do I need to do to set that ToolTipText to a string variable? How do I display variable data in the pop up tooltips of a datagrid cell?

When I set the tooltiptext to "hello" (me.dgvGrid.CurrentCell.ToolTipText = "Hello")

it works fine.

Thanks for your help

 

[jebenson]

Which line is throwing the object reference error?


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[jpack23]

jebenson
the line that throws the error is

Me.dgvGrid.CurrentCell.Tooltiptext = strNote


strNote I earlier set equal to the results of a call to a database....so strNote will be different for each cell. I need the tooltip to display the contents of a particular field in a database table

thanks for your help

 

[jpack23]

Ok i figured out how to solve the problem

replaced

Me.dgvGrid.CurrentCell.ToolTipText = strNote

with

Me.dgvGrid.Rows.Item(Row).Cells.Item(Col).ToolTipText = strNote

Dont know that the difference is between currentcell and actually pointing out the row and column of the cell but I guess there is

thanks to all who tried to help

 

[Sorwen]

I don't know how to put it other than some time things don't instance right. I had a similar problem with something else (can't remember). Generally when that happens you have to assign that instance something like:

Dim cCell As DataGridViewCell = Me.dgvGrid.CurrentCell
cCell.ToolTipText = strNote

I don't do much with data grids though so I'm not sure. Which was why I never mentioned it.

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