Question

这里我试图在回发后增加iframe的高度，但它不起作用，警报本身没有弹出。这是我的代码

function increaseiframesize() {
alert("aaaaaa");
$('#MainContent_IFTrendAnalysis').height('523');
}

和

protected void lnkBTNSubmit_Click(object sender, EventArgs e
{
TextBox txtTextBoxRetailGroup   = (TextBox)uscRetailParameters.FindControl("txtRetailCustomerGroup");
TextBox txtTextBoxPPGroup       = (TextBox)uscRetailParameters.FindControl("txtProductGroup");
if (txtTextBoxRetailGroup.Text != string.Empty && txtTextBoxPPGroup.Text != string.Empty && txtATrendStartDate.Text != string.Empty && txtATrendEndDate.Text != string.Empty)
{
this.IFTrendAnalysis.Attributes.Add("src", "");
ScriptManager.RegisterStartupScript(this, this.GetType(), "ScriptRegistration", "increaseiframesize();", true);
}
}

和

<asp:UpdatePanel ID="Update" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<iframe id="IFTrendAnalysis" name="IFTrendAnalysis" scrolling="auto" runat="server"
width="100%" height="403" frameborder="0"></iframe>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="imgBTNSalesTrendChart" />
<asp:AsyncPostBackTrigger ControlID="imgBTNSalesLiftChart" />
<asp:AsyncPostBackTrigger ControlID="lnkBTNSubmit" />
<asp:AsyncPostBackTrigger ControlID="imgBTNSalesLiftChart" />
<asp:AsyncPostBackTrigger ControlID="imgBTNTAEventROI" />
<asp:AsyncPostBackTrigger ControlID="imgBTNTrendAnalyzeTBL" />
</Triggers>
</asp:UpdatePanel>

任何建议???

Answer 1

我认为您在发送和完成ajax请求并控制返回浏览器后尝试调用您的方法。应该执行onload表单的javascript不会为ajax all执行。如果是ajax调用那么就这样做

在javascript中注册endRequest事件

Sys.WebForms.PageRequestManager.getInstance().add_endRequest(endRequestHandler)

在此处调用您的方法

function EndRequestHandler(sender, args)
{
    increaseiframesize();
}

回发后Javascript函数无法正常工作？

1 个答案: