传递多个eval（）函数从ASPX JavaScript函数 [英] Passing multiple Eval() to a JavaScript function from ASPX

问题描述

我试图传递多个的eval（）参数从的.aspx 文件中的JavaScript功能，但我不断收到编译器错误。我是新来的JavaScript，从来没有真正使用的eval（）之前。我在哪里去了？

I am trying to pass multiple Eval() arguments to a JavaScript function from an .aspx file, but I keep getting compiler errors. I am new to JavaScript and have never really used Eval() before. Where am I going wrong?

NB ：如下行实际上是全部在一行上，但在这里裹着为清楚起见：

NB: The line shown below is actually all on one line, but is wrapped here for clarity:

<asp:LinkButton runat="server" Text='<%#Eval("Title")%>'
    OnClick='javascript:ShowEventDetails'
    CommandArgument='<%#
        Eval("EventID").ToString()          & Eval("Title").ToString() &
        Eval("Location").ToString()         & Eval("StartTime").ToString() &
        Eval("Description").ToString()      & Eval("Link").ToString() &
        Eval("ContactFirstName").ToString() & Eval("ContactLastName").ToString() &
        Eval("ContactEmail").ToString()     & Eval("InsertionTime").ToString() &
        Eval("EventAdmin").ToString()%>); ' />

是否有这样做的更好的方法？如果是这样，它们是什么？

Are there better ways of doing this? If so, what are they?

推荐答案

的的OnClick 是在其期望的事件处理方法的引用该控件的属性。在单击属性把JavaScript就无法工作。

OnClick is a property on the control which expects a reference to an event handler method. Putting JavaScript in the OnClick property will not work.

如果您要执行任意JavaScript单击该按钮时，使用<一个href=\"http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.linkbutton.onclientclick.aspx\"相对=nofollow>的OnClientClick 。我presume要在evals传递到ShowEventDetails作为参数（格式化以提高可读性）：

If you want to execute arbitrary JavaScript when the button is clicked, use OnClientClick. I presume you want to pass the evals into ShowEventDetails as arguments (formatted for readability):

<asp:LinkButton ID="LinkButton1" runat="server" Text='<%# Eval("Title")%>' 
    OnClientClick='ShowEventDetails("<%# Eval("EventID").ToString() %>",
        "<%# Eval("Title").ToString() %>",
        "<%# Eval("Location").ToString() %>",
        "<%# Eval("StartTime").ToString() %>",
        "<%# Eval("Description").ToString() %>",
        "<%# Eval("Link").ToString() %>",
        "<%# Eval("ContactFirstName").ToString() %>",
        "<%# Eval("ContactLastName").ToString() %>",
        "<%# Eval("ContactEmail").ToString() %>",
        "<%# Eval("InsertionTime").ToString() %>",
        "<%# Eval("EventAdmin").ToString() %>");' />

基本上你正在构建一个长字符串：

Essentially you are constructing one long string:

ShowEventDetails('123','Event Title','New York' ... etc ...

这是JS点击LinkBut​​ton的时候执行。

Which is executed in JS when the LinkButton is clicked.

这篇关于传递多个eval（）函数从ASPX JavaScript函数的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！