Question How to Pass value from Modal Pop Up to Parent Page?

[raysefo]

Hi,

I have a modal popup. It passes data to parent when click on a button in firefox. But it gives error window.opener.document.getDocumentById()...is null or not an object for IE.
How can i pass value to a textbox control on parent page?

parent page

Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click

        Dim queryString As String = "PopUpSaticiHesap.aspx?param=" & TextBox_firmaunvani.Text.Trim()
        Dim newWin As String = "window.showModalDialog('" & queryString & "', 'List', 'dialogHeight: 250px; dialogWidth: 650px; dialogTop: 150px; dialogLeft: 150px; edge: Raised; center: Yes; resizable: No; status: No;');"

        ClientScript.RegisterStartupScript(Me.GetType(), "pop", newWin, True)
    End Sub

popup page

Protected Sub GridView1_RowCommand(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewCommandEventArgs) Handles GridView1.RowCommand
        If e.CommandName = "Select" Then
            Dim rowIndex As Int32 = Convert.ToInt32(e.CommandArgument.ToString())
            Dim Lifnr As String = GridView1.DataKeys(rowIndex).Values("Lifnr").ToString()
            Dim name As String = GridView1.DataKeys(rowIndex).Values("name").ToString().Replace("Ü", "Ü")
            name = name.Replace("ü", "ü")
            name = name.Replace("Ç", "Ç")
            name = name.Replace("ç", "ç")
            name = name.Replace("IÖ", "Ö")
            name = name.Replace("ö", "ö")

                     
            Page.ClientScript.RegisterStartupScript(GetType(Page), "ValueScript", "javascript:GetRowValue('" & Lifnr & "','" & name & "');", True)
        End If
        
    End Sub