มีปัญหาเรื่องโค้ดสต๊อกสินค้าครับ คือมันไม่อัพเดทสินค้าคงคัลงให้

If ProductInfoComboBox.SelectedValue IsNot Nothing Then
    Me.ProductInfoTableAdapter.updateStock(intTotal, ProductInfoComboBox.SelectedValue)
End If

Public Class Form1

    Protected bs1 As New BindingSource
    Protected bs2 As New BindingSource
    Protected gv As New DataGridView() With {.Name = "FakeGridView",
                                             .AutoGenerateColumns = False,
                                             .AllowUserToAddRows = True
                                            }
    Protected ds As New DataSet("FakeDataSet")

    Private Sub Form1_Load(sender As Object, e As System.EventArgs) Handles Me.Load

        AddHandler gv.DataError, AddressOf DataError '***** Fake Event.

        Call MakeFakeTable()

        Dim Column1 As New DataGridViewTextBoxColumn With {.Name = "พนักงานขาย"}
        Dim Column2 As New DataGridViewComboBoxColumn With {.Name = "เขตการขาย"}

        Column2.DataSource = bs2
        Column2.DataPropertyName = "RegionID"
        Column2.DisplayMember = "Name"
        Column2.ValueMember = "RegionID"

        Me.gv.Columns.Clear()
        Me.gv.Columns.AddRange(Column1, Column2)

        gv.Columns(0).DataPropertyName = "SaleName"
        gv.Columns(1).DataPropertyName = "RegionID"

        Me.gv.DataSource = bs1
        Me.gv.Location = New Point(10, 10)
        Me.gv.Height = 200

        Me.Controls.Add(gv)

        Me.bs1.Position = 1
    End Sub

    Private Sub MakeFakeTable()

        Dim dtParent As New DataTable("Territory")
        Dim dtChild As New DataTable("SaleGirl")

        dtChild.Columns.Add("SaleName", GetType(String))
        dtChild.Columns.Add("RegionID", GetType(String))

        dtChild.Rows.Add(New Object() {"อวบอูม1", "00"})
        dtChild.Rows.Add(New Object() {"อวบอูม2", "02"})
        dtChild.Rows.Add(New Object() {"อวบอูม3", "03"})
        dtChild.Rows.Add(New Object() {"อวบอูม4", "05"})
        Me.bs1.DataSource = dtChild

        dtParent.Columns.Add("Name", GetType(String))
        dtParent.Columns.Add("RegionID", GetType(String))
        dtParent.Rows.Add(New Object() {"เหนือ", "01"})
        dtParent.Rows.Add(New Object() {"ใต้", "02"})
        dtParent.Rows.Add(New Object() {"ตก", "04"})
        dtParent.Rows.Add(New Object() {"ออก", "05"})

        Me.bs2.DataSource = dtParent

        ds.Tables.AddRange({dtParent, dtChild})
        'Create DataRelation and Drop constraints.
        Dim rt As New DataRelation("R1", ds.Tables("Territory").Columns("RegionID"), ds.Tables("SaleGirl").Columns("RegionID"), False)
        ds.Relations.Add(rt)

    End Sub

    'FAKE Event.
    Private Sub DataError(sender As Object, e As System.Windows.Forms.DataGridViewDataErrorEventArgs)
        'If e.Exception.Message = "DataGridViewComboBoxCell value is not valid." Then
        '    e.ThrowException = False
        'End If
    End Sub
End Class

...
...
... /*บรรทัดที่ 1,472*/
    _getTextSelectionInfo: function (textBox, e) {
        // returns a helper object with information about textbox selection
        var info = new Object();
        // strategy
        info.strategy = this._getTextSelectionStrategy();
        // selectionStart & selectionEnd
        if (info.strategy == Sys.Extended.UI.ComboBoxTextSelectionStrategy.Microsoft) {
            if (document.getSelection) { //Fixed Bug IE 11
                //var userRange = document.selection.createRange();
                var userRange = document.getSelection()
                
                info.selectionStart = 0;
                info.selectionEnd = textBox.value.length;
                while (userRange.moveStart('character', -1) != 0) {
                    info.selectionStart++;
                }
                while (userRange.moveEnd('character', 1) != 0) {
                    info.selectionEnd--;
                }
            } else {
                var userRange = document.selection.createRange();
                info.selectionStart = 0;
                info.selectionEnd = textBox.value.length;
                while (userRange.moveStart('character', -1) != 0) {
                    info.selectionStart++;
                }
                while (userRange.moveEnd('character', 1) != 0) {
                    info.selectionEnd--;
                }
            }
...
...
...

var ComboBox_Elements = new Array();

Sys.Extended.UI.ComboBox.IsOpen = function (currentInstance) {
    var components = Sys.Application.getComponents();
    for (var i = 0; i < components.length; i++) {
        var component = components[i];
        if (Sys.Extended.UI.ComboBox.isInstanceOfType(component)) {
            if (component != currentInstance && component._popupBehavior._visible) {
                // hide popup of other instance of combobox
                component._popupBehavior.hide();
            }
        }
    }
} // บรรทัดที่ 1,847