GrapeCity.Win.Containers 名前空間 > GcRadioGroupBox クラス : CheckedIndexChanged イベント |
Public Event CheckedIndexChanged As EventHandler
public event EventHandler CheckedIndexChanged
次のサンプルコードは、このメンバの使用方法を示します。この例では、CheckedIndexChangedイベントが発生するとイベントハンドラによってそれが報告されます。これにより、イベントがいつ発生するかがわかり、イベントハンドラをデバッグに利用できます。複数のイベントまたは繰り返し発生するイベントを報告する場合は、MessageBox.ShowをConsole.WriteLineに置き換えるか、複数行のSystem.Windows.Forms.TextBoxにメッセージを追記してください。
このサンプルコードを実行するには、System.Windows.Forms.Formプロジェクトを作成し、GcRadioGroupBoxのインスタンスを追加して、以下のコードをプロジェクトに貼り付けます。そして、このイベントハンドラをCheckedIndexChangedイベントに関連付けます。
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; using GrapeCity.Win.Containers; using System.Collections; namespace GrapeCity.Win.PlusPak.SampleCodes_CS { public class GcRadioGroupBoxForm : Form { private GrapeCity.Win.Containers.GcRadioGroupBox gcRadioGroupBox1; private Button button1; private Label label1; private Button button2; private ListBox listBox1; private CheckBox checkBox1; private System.ComponentModel.IContainer components = null; private void InitializeComponent() { this.button1 = new System.Windows.Forms.Button(); this.label1 = new System.Windows.Forms.Label(); this.button2 = new System.Windows.Forms.Button(); this.listBox1 = new System.Windows.Forms.ListBox(); this.gcRadioGroupBox1 = new GrapeCity.Win.Containers.GcRadioGroupBox(); this.checkBox1 = new System.Windows.Forms.CheckBox(); ((System.ComponentModel.ISupportInitialize)(this.gcRadioGroupBox1)).BeginInit(); this.SuspendLayout(); // // button1 // this.button1.Location = new System.Drawing.Point(211, 44); this.button1.Name = "button1"; this.button1.Size = new System.Drawing.Size(105, 23); this.button1.TabIndex = 6; this.button1.Text = "Collapse all items"; this.button1.UseVisualStyleBackColor = true; this.button1.Click += new System.EventHandler(this.button1_Click); // // label1 // this.label1.AutoSize = true; this.label1.Location = new System.Drawing.Point(211, 17); this.label1.Name = "label1"; this.label1.Size = new System.Drawing.Size(62, 13); this.label1.TabIndex = 5; this.label1.Text = "Commands:"; // // button2 // this.button2.Location = new System.Drawing.Point(211, 73); this.button2.Name = "button2"; this.button2.Size = new System.Drawing.Size(105, 23); this.button2.TabIndex = 7; this.button2.Text = "Disable all items"; this.button2.UseVisualStyleBackColor = true; this.button2.Click += new System.EventHandler(this.button2_Click); // // listBox1 // this.listBox1.FormattingEnabled = true; this.listBox1.Location = new System.Drawing.Point(10, 143); this.listBox1.Name = "listBox1"; this.listBox1.Size = new System.Drawing.Size(195, 82); this.listBox1.TabIndex = 1; // // gcRadioGroupBox1 // this.gcRadioGroupBox1.Location = new System.Drawing.Point(10, 36); this.gcRadioGroupBox1.Name = "gcRadioGroupBox1"; this.gcRadioGroupBox1.Size = new System.Drawing.Size(155, 101); this.gcRadioGroupBox1.TabIndex = 0; // // checkBox1 // this.checkBox1.AutoSize = true; this.checkBox1.Location = new System.Drawing.Point(13, 13); this.checkBox1.Name = "checkBox1"; this.checkBox1.Size = new System.Drawing.Size(118, 17); this.checkBox1.TabIndex = 8; this.checkBox1.Text = "Button Appearance"; this.checkBox1.UseVisualStyleBackColor = true; this.checkBox1.CheckedChanged += new System.EventHandler(this.checkBox1_CheckedChanged); // // GcRadioGroupBoxForm // this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F); this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font; this.ClientSize = new System.Drawing.Size(339, 241); this.Controls.Add(this.checkBox1); this.Controls.Add(this.listBox1); this.Controls.Add(this.gcRadioGroupBox1); this.Controls.Add(this.button2); this.Controls.Add(this.label1); this.Controls.Add(this.button1); this.Name = "GcRadioGroupBoxForm"; this.Text = "GcRadioGroupBox"; ((System.ComponentModel.ISupportInitialize)(this.gcRadioGroupBox1)).EndInit(); this.ResumeLayout(false); this.PerformLayout(); } protected override void Dispose(bool disposing) { if (disposing && (components != null)) { components.Dispose(); } base.Dispose(disposing); } public GcRadioGroupBoxForm() { InitializeComponent(); InitializeGcRadioGroupBox(); this.DisplayAllItems(); } private void InitializeGcRadioGroupBox() { // Set header text by setting the Text property. this.gcRadioGroupBox1.Text = "&Collapse All"; // Enable gcRadioGroupBox1 to expand or collapse. this.gcRadioGroupBox1.HeaderType = HeaderType.ExpanderAndText; // Create a top-line border radio group box. this.gcRadioGroupBox1.GroupStyle = GroupStyle.TopLine; // Initialize the layout of items by LayoutSettings. this.gcRadioGroupBox1.LayoutSettings.LayoutMode = LayoutMode.Table; this.gcRadioGroupBox1.LayoutSettings.Orientation = System.Windows.Forms.Orientation.Vertical; this.gcRadioGroupBox1.LayoutSettings.RowCount = 3; this.gcRadioGroupBox1.LayoutSettings.HorizontalAdjustment = GrapeCity.Win.Containers.LineAdjustment.Distributed; this.gcRadioGroupBox1.LayoutSettings.VerticalAdjustment = GrapeCity.Win.Containers.LineAdjustment.Average; this.gcRadioGroupBox1.CheckedItemChanged += new System.EventHandler<CheckedItemChangedEventArgs>(this.gcRadioGroupBox1_CheckedItemChanged); this.gcRadioGroupBox1.HeaderStateChange += new System.EventHandler<HeaderStateChangeEventArgs>(this.gcRadioGroupBox1_HeaderStateChange); // Create and add some items. RadioButtonItem[] items = new RadioButtonItem[] { new RadioButtonItem("item1"), new RadioButtonItem("item2"), new RadioButtonItem("item3"), new RadioButtonItem("item4"), new RadioButtonItem("item5"), }; this.gcRadioGroupBox1.Items.AddRange(items); } // Fill listBox1 with all the items in gcRadioGroupBox1. private void DisplayAllItems() { // Display all the items of gcRadioGroupBox1 in list box. this.listBox1.Items.Clear(); RadioButtonItemCollection items = this.gcRadioGroupBox1.Items; foreach (RadioButtonItem item in items) { int index = this.listBox1.Items.Add( item.Text + " index: " + items.IndexOf(item).ToString() + " checked state: " + item.Checked); } // Select the corresponding item in listBox1. this.listBox1.SelectedIndex = this.gcRadioGroupBox1.CheckedIndex; } // Click button1 will expand or collapse gcRadioGroupBox1. private void button1_Click(object sender, EventArgs e) { if (this.gcRadioGroupBox1.IsExpanded) { this.gcRadioGroupBox1.Collapse(); } else { this.gcRadioGroupBox1.Expand(); } this.UpdateButton1Text(); } // Click button2 will enable or disable all items. private void button2_Click(object sender, EventArgs e) { if (AreAllItemsDisabled) { this.gcRadioGroupBox1.EnableAllItems(); } else { this.gcRadioGroupBox1.DisableAllItems(); } // Update button3's text to appropriate value. this.UpdateButton2Text(); } // Update the items for listBox1 when item checked changed in gcRadioGroupBox1, private void gcRadioGroupBox1_CheckedItemChanged(object sender, CheckedItemChangedEventArgs e) { if (e.CurrentCheckedItem != null) { // Use special styles for checked items. e.CurrentCheckedItem.ForeColor = Color.Red; e.CurrentCheckedItem.Font = new Font(e.CurrentCheckedItem.Font, FontStyle.Bold); } if (e.OriginalCheckedItem != null) { // Reset these properties will cause the properties to retreive their values from gcRadioGroupBox1. e.OriginalCheckedItem.ForeColor = Color.Empty; e.OriginalCheckedItem.Font = null; } // Update the items displayed in listBox1. this.DisplayAllItems(); } // update the header text when gcRadioGroupBox1's header state is changed. private void gcRadioGroupBox1_HeaderStateChange(object sender, HeaderStateChangeEventArgs e) { this.UpdateHeaderText(); this.UpdateButton1Text(); } // Update the header text according to the current header type and header state. private void UpdateHeaderText() { if (this.gcRadioGroupBox1.HeaderType == HeaderType.ExpanderAndText) { if (this.gcRadioGroupBox1.HeaderState == HeaderState.Expanded) { this.gcRadioGroupBox1.Text = "&Collapse All"; } else { this.gcRadioGroupBox1.Text = "&Expand All"; } } } // Change the appearance of all items in gcRadioGroupBox1. private void checkBox1_CheckedChanged(object sender, EventArgs e) { if (this.checkBox1.Checked) { this.gcRadioGroupBox1.ItemSettings.Appearance = Appearance.Button; } else { this.gcRadioGroupBox1.ItemSettings.Appearance = Appearance.Normal; } } // Update the button1's text according to whether gcRadioGroupBox1 is expanded. private void UpdateButton1Text() { if (this.gcRadioGroupBox1.IsExpanded) { this.button1.Text = "Collapse all items"; } else { this.button1.Text = "Expand all items"; } } // Update the button1's text according to whether all items in gcRadioGroupBox1 are enabled. private void UpdateButton2Text() { if (AreAllItemsDisabled) { this.button2.Text = "Enable all items"; } else { this.button2.Text = "Disable all items"; } } private bool AreAllItemsDisabled { get { foreach (RadioButtonItem item in this.gcRadioGroupBox1.Items) { if (item.Enabled) return false; } return true; } } [STAThread] public static void Main(string[] args) { Application.EnableVisualStyles(); Application.SetCompatibleTextRenderingDefault(false); Application.Run(new GcRadioGroupBoxForm()); } } }
Imports System Imports System.Collections.Generic Imports System.ComponentModel Imports System.Data Imports System.Drawing Imports System.Text Imports System.Windows.Forms Imports GrapeCity.Win.Containers Imports System.Collections Namespace GrapeCity.Win.PlusPak.SampleCodes_VB Public Class GcRadioGroupBoxForm Inherits Form Private gcRadioGroupBox1 As GcRadioGroupBox Private button1 As Button Private label1 As Label Private button2 As Button Private listBox1 As ListBox Private checkBox1 As CheckBox Private components As System.ComponentModel.IContainer = Nothing Private Sub InitializeComponent() Me.button1 = New System.Windows.Forms.Button() Me.label1 = New System.Windows.Forms.Label() Me.button2 = New System.Windows.Forms.Button() Me.listBox1 = New System.Windows.Forms.ListBox() Me.gcRadioGroupBox1 = New GcRadioGroupBox() Me.checkBox1 = New System.Windows.Forms.CheckBox() DirectCast((Me.gcRadioGroupBox1), System.ComponentModel.ISupportInitialize).BeginInit() Me.SuspendLayout() ' ' button1 ' Me.button1.Location = New System.Drawing.Point(207, 44) Me.button1.Name = "button1" Me.button1.Size = New System.Drawing.Size(105, 23) Me.button1.TabIndex = 6 Me.button1.Text = "Collapse all items" Me.button1.UseVisualStyleBackColor = True AddHandler Me.button1.Click, AddressOf button1_Click ' ' label1 ' Me.label1.AutoSize = True Me.label1.Location = New System.Drawing.Point(207, 17) Me.label1.Name = "label1" Me.label1.Size = New System.Drawing.Size(62, 13) Me.label1.TabIndex = 5 Me.label1.Text = "Commands:" ' ' button2 ' Me.button2.Location = New System.Drawing.Point(207, 73) Me.button2.Name = "button2" Me.button2.Size = New System.Drawing.Size(105, 23) Me.button2.TabIndex = 7 Me.button2.Text = "Disable all items" Me.button2.UseVisualStyleBackColor = True AddHandler Me.button2.Click, AddressOf button2_Click ' ' listBox1 ' Me.listBox1.FormattingEnabled = True Me.listBox1.Location = New System.Drawing.Point(10, 143) Me.listBox1.Name = "listBox1" Me.listBox1.Size = New System.Drawing.Size(182, 82) Me.listBox1.TabIndex = 1 ' ' gcRadioGroupBox1 ' Me.gcRadioGroupBox1.Location = New System.Drawing.Point(10, 36) Me.gcRadioGroupBox1.Name = "gcRadioGroupBox1" Me.gcRadioGroupBox1.Size = New System.Drawing.Size(155, 101) Me.gcRadioGroupBox1.TabIndex = 0 ' ' checkBox1 ' Me.checkBox1.AutoSize = True Me.checkBox1.Location = New System.Drawing.Point(13, 13) Me.checkBox1.Name = "checkBox1" Me.checkBox1.Size = New System.Drawing.Size(118, 17) Me.checkBox1.TabIndex = 8 Me.checkBox1.Text = "Button Appearance" Me.checkBox1.UseVisualStyleBackColor = True AddHandler Me.checkBox1.CheckedChanged, AddressOf checkBox1_CheckedChanged ' ' GcRadioGroupBoxForm ' Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0F, 13.0F) Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font Me.ClientSize = New System.Drawing.Size(339, 241) Me.Controls.Add(Me.checkBox1) Me.Controls.Add(Me.listBox1) Me.Controls.Add(Me.gcRadioGroupBox1) Me.Controls.Add(Me.button2) Me.Controls.Add(Me.label1) Me.Controls.Add(Me.button1) Me.Name = "GcRadioGroupBoxForm" Me.Text = "GcRadioGroupBox" DirectCast((Me.gcRadioGroupBox1), System.ComponentModel.ISupportInitialize).EndInit() Me.ResumeLayout(False) Me.PerformLayout() End Sub Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean) If disposing AndAlso (components IsNot Nothing) Then components.Dispose() End If MyBase.Dispose(disposing) End Sub Public Sub New() InitializeComponent() InitializeGcRadioGroupBox() Me.DisplayAllItems() End Sub Private Sub InitializeGcRadioGroupBox() ' Set header text by setting the Text property. Me.gcRadioGroupBox1.Text = "&Collapse All" ' Enable gcRadioGroupBox1 to expand or collapse. Me.gcRadioGroupBox1.HeaderType = HeaderType.ExpanderAndText ' Create a top-line border radio group box. Me.gcRadioGroupBox1.GroupStyle = GroupStyle.TopLine ' Initialize the layout of items by LayoutSettings. Me.gcRadioGroupBox1.LayoutSettings.LayoutMode = LayoutMode.Table Me.gcRadioGroupBox1.LayoutSettings.Orientation = System.Windows.Forms.Orientation.Vertical Me.gcRadioGroupBox1.LayoutSettings.RowCount = 3 Me.gcRadioGroupBox1.LayoutSettings.HorizontalAdjustment = LineAdjustment.Distributed Me.gcRadioGroupBox1.LayoutSettings.VerticalAdjustment = LineAdjustment.Average AddHandler Me.gcRadioGroupBox1.CheckedItemChanged, AddressOf gcRadioGroupBox1_CheckedItemChanged AddHandler Me.gcRadioGroupBox1.HeaderStateChange, AddressOf gcRadioGroupBox1_HeaderStateChange ' Create and add some items. Dim items As RadioButtonItem() = New RadioButtonItem() {New RadioButtonItem("item1"), New RadioButtonItem("item2"), New RadioButtonItem("item3"), New RadioButtonItem("item4"), New RadioButtonItem("item5")} Me.gcRadioGroupBox1.Items.AddRange(items) End Sub ' Fill listBox1 with all the items in gcRadioGroupBox1. Private Sub DisplayAllItems() ' Display all the items of gcRadioGroupBox1 in list box. Me.listBox1.Items.Clear() Dim items As RadioButtonItemCollection = Me.gcRadioGroupBox1.Items For Each item As RadioButtonItem In items Dim index As Integer = Me.listBox1.Items.Add(item.Text + " index: " + items.IndexOf(item).ToString() + " checked state: " + item.Checked.ToString()) Next ' Select the corresponding item in listBox1. Me.listBox1.SelectedIndex = Me.gcRadioGroupBox1.CheckedIndex End Sub ' Click button1 will expand or collapse gcRadioGroupBox1. Private Sub button1_Click(ByVal sender As Object, ByVal e As EventArgs) If Me.gcRadioGroupBox1.IsExpanded Then Me.gcRadioGroupBox1.Collapse() Else Me.gcRadioGroupBox1.Expand() End If Me.UpdateButton1Text() End Sub ' Click button2 will enable or disable all items. Private Sub button2_Click(ByVal sender As Object, ByVal e As EventArgs) If AreAllItemsDisabled Then Me.gcRadioGroupBox1.EnableAllItems() Else Me.gcRadioGroupBox1.DisableAllItems() End If ' Update button3's text to appropriate value. Me.UpdateButton2Text() End Sub ' Update the items for listBox1 when item checked changed in gcRadioGroupBox1, Private Sub gcRadioGroupBox1_CheckedItemChanged(ByVal sender As Object, ByVal e As CheckedItemChangedEventArgs) If e.CurrentCheckedItem IsNot Nothing Then ' Use special styles for checked items. e.CurrentCheckedItem.ForeColor = Color.Red e.CurrentCheckedItem.Font = New Font(e.CurrentCheckedItem.Font, FontStyle.Bold) End If If e.OriginalCheckedItem IsNot Nothing Then ' Reset these properties will cause the properties to retreive their values from gcRadioGroupBox1. e.OriginalCheckedItem.ForeColor = Color.Empty e.OriginalCheckedItem.Font = Nothing End If ' Update the items displayed in listBox1. Me.DisplayAllItems() End Sub ' update the header text when gcRadioGroupBox1's header state is changed. Private Sub gcRadioGroupBox1_HeaderStateChange(ByVal sender As Object, ByVal e As HeaderStateChangeEventArgs) Me.UpdateHeaderText() Me.UpdateButton1Text() End Sub ' Update the header text according to the current header type and header state. Private Sub UpdateHeaderText() If Me.gcRadioGroupBox1.HeaderType = HeaderType.ExpanderAndText Then If Me.gcRadioGroupBox1.HeaderState = HeaderState.Expanded Then Me.gcRadioGroupBox1.Text = "&Collapse All" Else Me.gcRadioGroupBox1.Text = "&Expand All" End If End If End Sub ' Change the appearance of all items in gcRadioGroupBox1. Private Sub checkBox1_CheckedChanged(ByVal sender As Object, ByVal e As EventArgs) If Me.checkBox1.Checked Then Me.gcRadioGroupBox1.ItemSettings.Appearance = Appearance.Button Else Me.gcRadioGroupBox1.ItemSettings.Appearance = Appearance.Normal End If End Sub ' Update the button1's text according to whether gcRadioGroupBox1 is expanded. Private Sub UpdateButton1Text() If Me.gcRadioGroupBox1.IsExpanded Then Me.button1.Text = "Collapse all items" Else Me.button1.Text = "Expand all items" End If End Sub ' Update the button1's text according to whether all items in gcRadioGroupBox1 are enabled. Private Sub UpdateButton2Text() If AreAllItemsDisabled Then Me.button2.Text = "Enable all items" Else Me.button2.Text = "Disable all items" End If End Sub Private ReadOnly Property AreAllItemsDisabled() As Boolean Get For Each item As RadioButtonItem In Me.gcRadioGroupBox1.Items If item.Enabled Then Return False End If Next Return True End Get End Property End Class End Namespace
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2