如何从datagridview获取单元格列值

Question

How to get cell column value from datagridview and if it is equal to OVERDUE, the back cell color will change.

----------------------------------
id     |   uname    |  lname     |
---------------------------------
1      |   anne|    |    a       |
----------------------------------
2      |   rays     |    b       |
----------------------------------
3      |   saws     |  OVERDUE   |     <---------- this row will become yellow This row only.
----------------------------------

I want to get column lname ,how to do that? Can anyone give some example coding?

This is my code:

  If gridalarmnotice(20, gridalarmnotice.CurrentCell.RowIndex).Value.ToString = "OVERDUE" Then
      gridalarmnotice.DefaultCellStyle.BackColor = Color.Yellow  
  End If

I want to change backgroundcolor if the column and current cell is equal to OVERDUE.

Answer 1

This will work just great for you.

Put this method in your class wherever you want... Then call it. . For ex: a button click event...

 Private Sub HighlightRows()
    'Loop through the rows, if the current rows cell equals "OVERDUE"
    'change the rows color to yellow
    For i As Integer = 0 To gridalarmnotice.Rows.Count - 1
        If gridalarmnotice.Rows(i).Cells("lname").Value.Equals("OVERDUE") Then
            'Then color the whole row, each cell specifically
            For Each cell As DataGridViewCell In gridalarmnotice.Rows(i).Cells
                cell.Style.BackColor = Color.Yellow
            Next
        End If
    Next
 End Sub

PS Here's my screenshot of my test.