Questions on UI for WinForms Forum

3 answers

212 views

I spent 3 hours trying to figure this out, i am sure it is something silly, but no matter what i try i am still stuck

why the button is not deleting the item in the grid?!!!

see code:

Form1.Designer.vb

                    <Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _         
            Partial Class Form1         
                Inherits System.Windows.Forms.Form         
                     
                'Form overrides dispose to clean up the component list.         
                <System.Diagnostics.DebuggerNonUserCode()> _         
                Protected Overrides Sub Dispose(ByVal disposing As Boolean)         
                    Try         
                        If disposing AndAlso components IsNot Nothing Then         
                            components.Dispose()         
                        End If         
                    Finally         
                        MyBase.Dispose(disposing)         
                    End Try         
                End Sub         
                     
                'Required by the Windows Form Designer         
                Private components As System.ComponentModel.IContainer         
                     
                'NOTE: The following procedure is required by the Windows Form Designer         
                'It can be modified using the Windows Form Designer.           
                'Do not modify it using the code editor.         
                <System.Diagnostics.DebuggerStepThrough()> _         
                Private Sub InitializeComponent()         
                    Me.RadGridView1 = New Telerik.WinControls.UI.RadGridView         
                    Me.RadButton1 = New Telerik.WinControls.UI.RadButton         
                    CType(Me.RadGridView1, System.ComponentModel.ISupportInitialize).BeginInit()         
                    CType(Me.RadGridView1.MasterGridViewTemplate, System.ComponentModel.ISupportInitialize).BeginInit()         
                    CType(Me.RadButton1, System.ComponentModel.ISupportInitialize).BeginInit()         
                    Me.SuspendLayout()         
                    '         
                    'RadGridView1         
                    '         
                    Me.RadGridView1.Location = New System.Drawing.Point(0, 0)         
                    Me.RadGridView1.Name = "RadGridView1"         
                    Me.RadGridView1.Size = New System.Drawing.Size(240, 150)         
                    Me.RadGridView1.TabIndex = 0         
                    '         
                    'RadButton1         
                    '         
                    Me.RadButton1.AllowShowFocusCues = True         
                    Me.RadButton1.Location = New System.Drawing.Point(12, 213)         
                    Me.RadButton1.Name = "RadButton1"         
                    Me.RadButton1.Size = New System.Drawing.Size(75, 23)         
                    Me.RadButton1.TabIndex = 1         
                    Me.RadButton1.Text = "RadButton1"         
                    '         
                    'Form1         
                    '         
                    Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)         
                    Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font         
                    Me.ClientSize = New System.Drawing.Size(284, 262)         
                    Me.Controls.Add(Me.RadButton1)         
                    Me.Controls.Add(Me.RadGridView1)         
                    Me.Name = "Form1"         
                    Me.Text = "Form1"         
                    CType(Me.RadGridView1.MasterGridViewTemplate, System.ComponentModel.ISupportInitialize).EndInit()         
                    CType(Me.RadGridView1, System.ComponentModel.ISupportInitialize).EndInit()         
                    CType(Me.RadButton1, System.ComponentModel.ISupportInitialize).EndInit()         
                    Me.ResumeLayout(False)         
                    Me.PerformLayout()         
                     
                End Sub         
                Friend WithEvents RadGridView1 As Telerik.WinControls.UI.RadGridView         
                Friend WithEvents RadButton1 As Telerik.WinControls.UI.RadButton         
            End Class         
                     

Form1.vb

                    Imports Telerik.WinControls         
            Public Class Form1         
                Private ModuleName As String = "Form1"         
                Private list As New ArrayList()         
                     
                Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load         
                    AddColumns()         
                    FillDevelopmentItem()         
                End Sub         
                Private Sub FillDevelopmentItem()         
                     
                    list.Add(New RGItem(1, False, "Development Fees", 1, 0.75D))         
                    list.Add(New RGItem(2, True, "15x18", 4, 5.75D))         
                    RadGridView1.DataSource = list         
                End Sub         
                Private Sub AddColumns()         
                    Dim xCol As UI.GridViewDataColumn         
                    With RadGridView1         
                        .MasterGridViewTemplate.AllowAddNewRow = False         
                        .DataSource = Nothing         
                        .GridElement.BeginUpdate()         
                     
                        .MasterGridViewTemplate.Columns.Clear()         
                        xCol = New UI.GridViewTextBoxColumn("ID", "P_DP_Detail_ID")         
                        xCol.VisibleInColumnChooser = False         
                        xCol.IsVisible = False         
                        xCol.AllowSort = False         
                        xCol.AllowResize = False         
                        .MasterGridViewTemplate.Columns.Add(xCol)         
                     
                        'xCol = New UI.GridViewCommandColumn("Delete", "ShowDel")         
                        xCol = New UI.GridViewDataColumn("Delete", "ShowDel")         
                        xCol.VisibleInColumnChooser = False         
                        xCol.IsVisible = True         
                        xCol.AllowSort = False         
                        xCol.AllowResize = False         
                        .MasterGridViewTemplate.Columns.Add(xCol)         
                     
                        xCol = New UI.GridViewTextBoxColumn("Description", "MeasureDescription")         
                        xCol.VisibleInColumnChooser = False         
                        xCol.IsVisible = True         
                        xCol.AllowSort = False         
                        xCol.AllowResize = False         
                        .MasterGridViewTemplate.Columns.Add(xCol)         
                     
                        xCol = New UI.GridViewDecimalColumn("Count", "P_DP_Detail_Count")         
                        xCol.VisibleInColumnChooser = False         
                        xCol.IsVisible = True         
                        xCol.AllowSort = False         
                        xCol.AllowResize = False         
                        .MasterGridViewTemplate.Columns.Add(xCol)         
                     
                        xCol = New UI.GridViewDecimalColumn("Total", "TotalAmount")         
                        xCol.VisibleInColumnChooser = False         
                        xCol.IsVisible = True         
                        xCol.AllowSort = False         
                        xCol.AllowResize = False         
                        .MasterGridViewTemplate.Columns.Add(xCol)         
                     
                        '.Columns(GridCols.enDesc).Width = 220         
                        '.Columns(GridCols.enCount).Width = 150         
                        '.Columns(GridCols.enTotal).Width = 150         
                     
                        .GridElement.EndUpdate()         
                    End With         
                          
                End Sub         
                Private Class RGItem         
                    Private _P_DP_Detail_ID As Integer = 0         
                    Private _ShowDel As Boolean = True         
                    Private _MeasureDescription As String = String.Empty         
                    Private _P_DP_Detail_Count As Integer = 1         
                    Private _TotalAmount As Decimal = 0D         
                    Private _Notes As String = String.Empty         
                     
                    Public Property P_DP_Detail_ID() As Integer         
                        Get         
                            Return _P_DP_Detail_ID         
                        End Get         
                        Set(ByVal value As Integer)         
                            _P_DP_Detail_ID = value         
                        End Set         
                    End Property         
                     
                    Public Property ShowDel() As Boolean         
                        Get         
                            Return _ShowDel         
                        End Get         
                        Set(ByVal value As Boolean)         
                            _ShowDel = value         
                        End Set         
                    End Property         
                     
                    Public Property MeasureDescription() As String         
                        Get         
                            Return _MeasureDescription         
                        End Get         
                        Set(ByVal value As String)         
                            _MeasureDescription = value         
                        End Set         
                    End Property         
                     
                    Public Property P_DP_Detail_Count() As Integer         
                        Get         
                            Return _P_DP_Detail_Count         
                        End Get         
                        Set(ByVal value As Integer)         
                            _P_DP_Detail_Count = value         
                        End Set         
                    End Property         
                     
                    Public Property TotalAmount() As Decimal         
                        Get         
                            Return _TotalAmount         
                        End Get         
                        Set(ByVal value As Decimal)         
                            _TotalAmount = value         
                        End Set         
                    End Property         
                     
                    Public Property Notes() As String         
                        Get         
                            Return _Notes         
                        End Get         
                        Set(ByVal value As String)         
                            _Notes = value         
                        End Set         
                    End Property         
                     
                    Public Sub New(ByVal iID As Integer, ByVal iShowDel As Boolean, ByVal iMeasureDescription As String, ByVal iCount As Integer, ByVal iTotal As Decimal)         
                        P_DP_Detail_ID = iID         
                        ShowDel = iShowDel         
                        MeasureDescription = iMeasureDescription         
                        P_DP_Detail_Count = iCount         
                        TotalAmount = iTotal         
                    End Sub         
                End Class         
                     
                Private Sub RadButton1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RadButton1.Click         
                    RadGridView1.Rows.RemoveAt(0)         
                End Sub         
            End Class         
                     

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private void radButton1_Click(object sender, EventArgs e)

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public

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