Not as pretty as it could be but this worked in my testing. Against a table with 50,000 records this method took 1.78 seconds and against 20 records it took 1.77 seconds ???. So the loop isn't the performance bottleneck. But this is a quick and dirty answer. * I included my full test code at the bottom of this post.

    Friend Function DataGridrows(ByVal dg As DataGrid) As Integer
        Dim strFoo As String   ' Disposable 
        Dim iCount As Integer
        Try
            For iCount = 0 To 50000
                strFoo = dg.Item(iCount, 0).ToString
            Next
        Catch ex As Exception
            Return (iCount)
        End Try
    End Function

HTH,

>Anyone know how to get the row count of a windows from datagrid without looking to it's datasource?
>I see currentrow, visiblerows but nothing for rowcount.
>
>
>I'm looking for a way to iterate through a datagrid and I don't wnat to look at the data source to know when to stop.
>
>Thanks,

    Private Sub Button1_Click(ByVal sender As System.Object, _
              ByVal e As System.EventArgs) Handles Button1.Click
        Static start_time As DateTime
        Static stop_time As DateTime
        Dim elapsed_time As TimeSpan
        start_time = Now

        Me.Text = DataGridrows(DataGrid1)
        stop_time = Now
        elapsed_time = stop_time.Subtract(start_time)

        Me.Text &= " " & elapsed_time.TotalSeconds.ToString("0.000000")
    End Sub

    Friend Function DataGridrows(ByVal dg As DataGrid) As Integer
        Dim strFoo As String
        Dim iCount As Integer
        Try
            For iCount = 0 To 50000
                strFoo = dg.Item(iCount, 0).ToString
            Next
        Catch ex As Exception
            Return (iCount)
        End Try

    End Function


    Private Sub Form1_Load(ByVal sender As System.Object, _ 
              ByVal e As System.EventArgs) Handles MyBase.Load
        BindTableToDataGrid()
    End Sub

    Public Sub BindTableToDataGrid()
        Dim dt As New DataTable
        dt.Columns.Add(New DataColumn("Item", GetType(String)))
        dt.Columns.Add(New DataColumn("Color", GetType(String)))

        For x As Integer = 1 To 25000
            dt.Rows.Add(New String() {"table", "brown"})
            dt.Rows.Add(New String() {"chair", "white"})
        Next

        DataGrid1.DataSource = dt
    End Sub