WizardStepBase.ID 属性
定义
重要
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获取或设置分配给服务器控件的编程标识符。
public:
virtual property System::String ^ ID { System::String ^ get(); void set(System::String ^ value); };public override string ID { get; set; }member this.ID : string with get, setPublic Overrides Property ID As String属性值
分配给控件的编程标识符。
例外
此属性在设计时设置为无效的标识符字符串。
示例
下面的代码示例为Web Forms页中的控件定义三个Wizard向导步骤。 在页面的代码中，向导步骤实例按其 ID 值命名，并且可以在代码WizardStep1``WizardStep2中引用它们，以及WizardStep3。
<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
void OnActiveStepChanged(object sender, EventArgs e)
{
// If the ActiveStep is changing to Step2 check to see if the
// CheckBox1 CheckBox is checked. If it is then skip
// to the Step3 step.
if (Wizard1.ActiveStep == this.WizardStep2)
{
if (this.CheckBox1.Checked)
{
Wizard1.ActiveStepIndex = Wizard1.WizardSteps.IndexOf(this.WizardStep3);
}
}
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>ASP.NET Example</title>
</head>
<body>
<form id="form1" runat="server">
<asp:Wizard ID="Wizard1"
Runat="server"
OnActiveStepChanged="OnActiveStepChanged">
<WizardSteps>
<asp:WizardStep ID="WizardStep1"
Title="Step 1"
Runat="server">
<asp:CheckBox ID="CheckBox1"
Runat="Server"
Text="Check this checkbox to skip Step 2." />
You are currently on Step 1.
</asp:WizardStep>
<asp:WizardStep ID="WizardStep2"
Title="Step 2"
Runat="server">
You are currently on Step 2.
</asp:WizardStep>
<asp:WizardStep ID="WizardStep3"
Runat="server"
Title="Step 3">
You are currently on Step 3.
</asp:WizardStep>
</WizardSteps>
<HeaderTemplate>
<b>ActiveStepIndex Example</b>
</HeaderTemplate>
</asp:Wizard>
</form>
</body>
</html>
<%@ Page Language="VB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
Sub OnActiveStepChanged(ByVal sender As Object, ByVal e As EventArgs)
' If the ActiveStep is changing to Step2 check to see if the
' CheckBox1 CheckBox is checked. If it is then skip
' to the Step3 step.
If Wizard1.ActiveStep.Equals(Me.WizardStep2) Then
If (Me.CheckBox1.Checked) Then
Wizard1.ActiveStepIndex = Wizard1.WizardSteps.IndexOf(Me.WizardStep3)
End If
End If
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>ASP.NET Example</title>
</head>
<body>
<form id="form1" runat="server">
<asp:Wizard ID="Wizard1"
Runat="server"
OnActiveStepChanged="OnActiveStepChanged">
<WizardSteps>
<asp:WizardStep ID="WizardStep1"
Title="Step 1"
Runat="server">
<asp:CheckBox ID="CheckBox1"
Runat="Server"
Text="Check this checkbox to skip Step 2." />
You are currently on Step 1.
</asp:WizardStep>
<asp:WizardStep ID="WizardStep2"
Title="Step 2"
Runat="server">
You are currently on Step 2.
</asp:WizardStep>
<asp:WizardStep ID="WizardStep3"
Runat="server"
Title="Step 3">
You are currently on Step 3.
</asp:WizardStep>
</WizardSteps>
<HeaderTemplate>
<b>ActiveStepIndex Example</b>
</HeaderTemplate>
</asp:Wizard>
</form>
</body>
</html>
注解
ID使用属性标识和引用Web Forms页面中的特定向导步骤控件。 该值 ID 将成为页面中控件实例的名称;这允许你轻松访问该页的代码中的特定步骤。 例如，如果将控件的属性WizardStepBase设置为ID“Step1”，则可以在该页Step1.Controls的代码中引用向导步骤的子控件。
控件 WizardStepBase 可确保在设计时添加或修改步骤时，控件中的每个 Wizard 步骤都具有有效的唯一标识符。 例如，在设计时设置ID步骤时，它不能匹配控件中包含的其他步骤的Wizard标识符，并且它不能与包含Wizard控件匹配ID。