Question

 For Each row As DataRow In dgrFarms.Rows
        Dim sendtroopid As Integer
        sendtroopid = row("idColumn")
        'Do Something
Next

I’ve been trying to get a loop through a row in just one column in VB.NET for a while now, and i’ve done my homework on it too. When i use that code above I get:

Unable to cast object of type ‘System.Windows.Forms.DataGridViewRow’ to type ‘System.Data.DataRow’.

I saw another guide which told me to do:

For Each row As DataGridView In dgrFarms.Rows
        sendtroopid = row("idColumn")
        'Do Something
Next

But that gives me the error:

Overload resolution failed because no accessible ‘Item’ accepts this number of arguments.

(That’s a blue underline on ‘Row(“idColumn”) )

Answer 1

The code should be:

For Each row As DataGridViewRow In dgrFarms.Rows
    sendtroopid = row.Cells("idColumn").Value
    'Do Something
Next

Note that each row is a DataGridViewRow, not a DataGridView. Also, you get the contents of a specific cell from this row with the Cells property.