我想動態地爲一個LinkButton控件動態地設置一個佔位符控件,該控件位於嚮導的FinishNavigationTemplate內部。我想做普通回發的理由是因爲按鈕開始下載。PostBackTrigger控制裏面的嚮導裏面的嚮導FinishNavigationTemplate
我(簡化)標記看起來是這樣的:
<asp:UpdatePanel runat="server" id="updPanel">
<ContentTemplate>
<asp:Wizard runat="server" ID="wizard">
<WizardSteps>
<asp:WizardStep runat="server" Title="Step 1">
Step data
</asp:WizardStep>
</WizardSteps>
<FinishNavigationTemplate>
<asp:Placeholder ID="phTest" Visible="false" runat="server">
<asp:LinkButton id="lbtnClick" runat="server" />
</asp:Placeholder>
</FinishNavigationTemplate>
</asp:Wizard>
</ContentTemplate>
</asp:UpdatePanel>
現在我wan't添加LinkButton的ID作爲一次佔位符Visible屬性設置爲true PostBackTrigger。
protected void Page_Load(object sender, System.EventArgs e)
{
PlaceHolder phTest = wizard.FindControl("FinishNavigationTemplateContainerID$phTest") as PlaceHolder;
phTest.Visible = true;
LinkButton lbtnClick = offerWizard.FindControl("FinishNavigationTemplateContainerID$lbtnClick") as LinkButton;
PostBackTrigger trigger = new PostBackTrigger();
trigger.ControlID = lbtnClick.ID;
//trigger.ControlID = lbtnClick.ClientID;
//trigger.ControlID = "FinishNavigationTemplateContainerID$lbtnClick";
updPanel.Triggers.Add(trigger);
}
這讓我異常「ID爲‘lbtnClick’的控制不能在UpdatePanel的‘updPanel’觸發找到。」 有沒有辦法保持標記的方式,並以某種方式使linkbutton做一個正常的回發?