我有以下.ascx页面(用户控制):
<%@ Control Language="C#" AutoEventWireup="true" CodeFile="MultiSelectDDL.ascx.cs" Inherits="MultiSelectDDL" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %>
<link href="Styles/style.css" rel="stylesheet" type="text/css" />
<script type = "text/javascript">
function CheckItem(checkBoxList) {
debugger;
var options = checkBoxList.getElementsByTagName('input');
var arrayOfCheckBoxLabels = checkBoxList.getElementsByTagName("label");
var s = "";
for (i = 0; i < options.length; i++) {
var opt = options[i];
if (opt.checked) {
s = s + ", " + arrayOfCheckBoxLabels[i].innerHTML;
}
}
if (s.length > 0) {
s = s.substring(2, s.length);
}
var TxtBox = document.getElementById("<%=txtCombo.ClientID%>");
TxtBox.value = s;
document.getElementById('<%=hidVal.ClientID %>').value = s;
}
</script>
<asp:TextBox ID="txtCombo" runat="server" ReadOnly="true" Width="138px" Font-Size="X-Small" CssClass="txtbox"></asp:TextBox>
<cc1:PopupControlExtender ID="PopupControlExtender111" runat="server"
TargetControlID="txtCombo" PopupControlID="Panel111" Position="Bottom" >
</cc1:PopupControlExtender>
<input type="hidden" name="hidVal" id="hidVal" runat="server" />
<asp:Panel ID="Panel111" runat="server" ScrollBars="Vertical" Width="142px" Height="75" BackColor="White" BorderColor="Gray" BorderWidth="1">
<asp:CheckBoxList ID="chkList"
runat="server"
Height="75" onclick="CheckItem(this)">
</asp:CheckBoxList>
</asp:Panel>
还有另一个普通的.aspx页面,在其中放置了上述用户控件。
我需要做的是,从.aspx.cs编写的函数中,我要调用.ascx页编写的Javascript。
我试过了:
Page.ClientScript.RegisterStartupScript(this.GetType(),"MyFunction","CheckItem('"+ MultiSelectDDL1.ClientID +"');",true);
但它不起作用。请帮助。
最佳答案
我认为问题是您传递的是字符串而不是DOM元素,您应该使用以下内容更改启动脚本。
Page.ClientScript.RegisterStartupScript(this.GetType(),"MyFunction","CheckItem(document.getElementById('"+ MultiSelectDDL1.ClientID +"'));",true);