datagridview,vb.net-2010 , Object reference not set to an instance of an object on retrieving text from datagridview


Object reference not set to an instance of an object on retrieving text from datagridview

Question:

Tag: datagridview,vb.net-2010

I have a Datagridview that is bound to a database using binding source. I want to highlight the row or text that has the value that I am searching. But for some reason, it gives me this error:

Object reference not set to an instance of an object.

It points to the line:

Dim cell As DataGridViewCell = (EmployeesDataGridView.Rows(gridRow).Cells(gridColumn))

Dim someText As String = txtSearchLastName.Text
    Dim gridRow As Integer = 0
    Dim gridColumn As Integer = 0
    For Each Row As DataGridViewRow In EmployeesDataGridView.Rows
        For Each column As DataGridViewColumn In EmployeesDataGridView.Columns
            Dim cell As DataGridViewCell = (EmployeesDataGridView.Rows(gridRow).Cells(gridColumn))
            If cell.Value.ToString.ToUpper.Contains(someText.ToUpper) Then
                cell.Style.BackColor = Color.Yellow
            End If
            gridColumn += 1
        Next column
        gridColumn = 0
        gridRow += 1
    Next Row

I've read the meaning of this error, but I cannot correlate its meaning to my code. Thanks.


Answer:

Do it like;

 For Each row As DataGridViewRow In EmployeesDataGridView.rows

     For Each cell As DataGridViewCell In row.cells

          If cell.Value.ToString.ToUpper.Contains(someText.ToUpper) Then
               cell.Style.BackColor = Color.Yellow
          End If

     Next

 Next

Hope it helps...!!!


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