[أبو عمر]

كود :

    Dim searchValue As String = textBox1.Text

    dgvProjects.SelectionMode = DataGridViewSelectionMode.FullRowSelect
    Try
        For Each row As DataGridViewRow In dgvProjects.Rows
            If row.Cells(2).Value.ToString().Equals(searchValue) Then
                row.Selected = True
                Exit For
            End If
        Next
    Catch exc As Exception
        MessageBox.Show(exc.Message)
    End Try

جرب ده