OnBeginInit メソッド

コンポーネントの System.ComponentModel.ISupportInitialize.BeginInit の間に呼び出されます。

シンタックス

Visual Basic

'宣言
 
Protected Overridable Sub OnBeginInit() 

C#

protected virtual void OnBeginInit()

使用例

Visual Basic

Imports Infragistics.Win
Imports Infragistics.Win.UltraWinTabs
Imports Infragistics.Win.UltraWinTabControl

Private Sub button8_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles button8.Click

    ' Call BeginUpdate to prevent the display from
    ' refreshing as we add individual tabs.
    ' Note: This MUST be paired with a call to
    ' EndUpdate below.
    Me.ultraTabControl1.BeginUpdate()

    ' Specify that mnemonics will be supported. If so and
    ' there is an '&' in a tab's text, the following character
    ' will be treated as an accelerator (i.e. the tab will
    ' be activated when the user presses the 'Alt' key and 
    ' that character).
    Me.ultraTabControl1.UseMnemonics = DefaultableBoolean.True

    Dim tabAdded As UltraTab
    Dim tabs As UltraTabsCollection = Me.ultraTabControl1.Tabs

    ' Add a tab to the Tabs collection
    tabAdded = tabs.Add("options", "&Options")

    ' Setting the FixedWidth property will cause
    ' this tab to be displayed that size regardless
    ' of what is required to display its image and
    ' text
    tabAdded.FixedWidth = 80 ' pixels

    ' Create a new control
    Dim tb As New TextBox()
    tb.Location = New Point(20, 20)
    tb.Size = New Size(80, 20)

    ' Add the control to the tab's tab page
    tabAdded.TabPage.Controls.Add(tb)

    ' Continue to add tabs
    tabAdded = tabs.Add("general", "&General")
    tabAdded = tabs.Add("advanced", "Ad&vanced")

    ' Select the 'options' tab by setting the SelectedTab
    ' property. This will raise the ActiveTabChanging,
    ' ActiveTabChanged, SelectedTabChanging and 
    ' SelectedTabChanged events. It will also cause
    ' the 'options' tab TabPage to be made visible and
    ' the tab to scroll into view.
    Me.ultraTabControl1.SelectedTab = tabs("options")

    ' Activate the 'general' tab by setting the ActiveTab
    ' property. This will raise the ActiveTabChanging,
    ' and ActiveTabChanged events. It will also cause
    ' the tab to scroll into view but the only other
    ' visible change will be that a focus rect will
    ' be drawn around the tab if the control has focus. 
    Me.ultraTabControl1.ActiveTab = tabs("general")

    ' Give the tab control focus
    Me.ultraTabControl1.Focus()

    ' Call EndUpdate to allow the display to refresh
    Me.ultraTabControl1.EndUpdate()

End Sub

C#

using System.Diagnostics;
using Infragistics.Win;
using Infragistics.Win.UltraWinTabs;
using Infragistics.Win.UltraWinTabControl;

private void button8_Click(object sender, System.EventArgs e)
{
	// Call BeginUpdate to prevent the display from
	// refreshing as we add individual tabs.
	// Note: This MUST be paired with a call to
	// EndUpdate below.
	this.ultraTabControl1.BeginUpdate();
		
	// Specify that mnemonics will be supported. If so and
	// there is an '&' in a tab's text, the following character
	// will be treated as an accelerator (i.e. the tab will
	// be activated when the user presses the 'Alt' key and 
	// that character).
	this.ultraTabControl1.UseMnemonics = DefaultableBoolean.True;

	UltraTab tabAdded;
	UltraTabsCollection tabs = this.ultraTabControl1.Tabs;

	// Add a tab to the Tabs collection
	tabAdded = tabs.Add("options", "&Options");

	// Setting the FixedWidth property will cause
	// this tab to be displayed that size regardless
	// of what is required to display its image and
	// text
	tabAdded.FixedWidth = 80; // pixels

	// Create a new control
	TextBox tb = new TextBox();
	tb.Location = new Point(20,20);
	tb.Size = new Size(80, 20);
	
	// Add the control to the tab's tab page
	tabAdded.TabPage.Controls.Add(tb );

	// Continue to add tabs
	tabAdded = tabs.Add("general", "&General");
	tabAdded = tabs.Add("advanced", "Ad&vanced");

	// Select the 'options' tab by setting the SelectedTab
	// property. This will raise the ActiveTabChanging,
	// ActiveTabChanged, SelectedTabChanging and 
	// SelectedTabChanged events. It will also cause
	// the 'options' tab TabPage to be made visible and
	// the tab to scroll into view.
	this.ultraTabControl1.SelectedTab = tabs["options"];

	// Activate the 'general' tab by setting the ActiveTab
	// property. This will raise the ActiveTabChanging,
	// and ActiveTabChanged events. It will also cause
	// the tab to scroll into view but the only other
	// visible change will be that a focus rect will
	// be drawn around the tab if the control has focus. 
	this.ultraTabControl1.ActiveTab = tabs["general"];

	// Give the tab control focus
	this.ultraTabControl1.Focus();

	// Call EndUpdate to allow the display to refresh
	this.ultraTabControl1.EndUpdate();

}