Events from gridview to textbox do not match the result in textbox in vb.net

should the textbox date (txt.DTE) be empty instead of containing the date from the previous date that I did double click cell gridview. Is there a solution or is my code wrong?.

Note : I use visual studio 2010

 Private Sub DataGridView1_CellDoubleClick(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.CellDoubleClick
        x = DataGridView1.Rows.IndexOf(DataGridView1.CurrentRow)
        txtCODE.Text = DataGridView1.Rows(x).Cells(0).Value.ToString()
        Dim dte = DataGridView1.Rows(x).Cells(1).Value.ToString()
        If dte <> Nothing Then
            txtDTE.Text = CDate(dte)
        End If
        txtQTY.Text = DataGridView1.Rows(x).Cells(2).Value.ToString()
        txtPRICE.Text = DataGridView1.Rows(x).Cells(3).Value.ToString()
    End Sub

>Solution :

Add an else code in your if clause to clear the value of the txtDTE if the date column is blank.

Private Sub DataGridView1_CellDoubleClick(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.CellDoubleClick
        x = DataGridView1.Rows.IndexOf(DataGridView1.CurrentRow)
        txtCODE.Text = DataGridView1.Rows(x).Cells(0).Value.ToString()
        Dim dte = DataGridView1.Rows(x).Cells(1).Value.ToString()
        If dte <> Nothing Then
            txtDTE.Text = CDate(dte)
        else
            ' CLEAR txtDTE if dt = nothing
            txtDTE.clear()
        End If
        txtQTY.Text = DataGridView1.Rows(x).Cells(2).Value.ToString()
        txtPRICE.Text = DataGridView1.Rows(x).Cells(3).Value.ToString()
    End Sub

Another advice:
You can use e.RowIndex instead of DataGridView1.Rows.IndexOf(DataGridView1.CurrentRow) which also returns the current row index.

Example:

x = e.RowIndex()

Instead of

x = DataGridView1.Rows.IndexOf(DataGridView1.CurrentRow)