document.getElementById（按钮... [英] document.getElementById ( button ...

问题描述

我有一个文本框和TextboxdoubleClick调用脚本函数

I have a textbox And TextboxdoubleClick Call script function

txtBox.Attributes.Add("Ondblclick", "return clickButton(event, '" + btnSearch.ClientID + "')");

我使用以下脚本在我的usercontrol中调用按钮单击。但 document.getElementById（buttonid）返回undefined

I am using the below script to call a button click in my usercontrol. But document.getElementById(buttonid) returns undefined

<script type="text/javascript">
     function clickButton(event, buttonid) {
       
         var bt = document.getElementById(buttonid);
         if (bt) {
             bt.click();
         }
     }

推荐答案

建议

放下如下调试器......

Suggestion
Put a debugger like below...

<script type="text/javascript">
     function clickButton(event, buttonid) {
         debugger;    

         var bt = document.getElementById(buttonid);
         if (bt) {
             bt.click();
         }
     }

现在，当您双击 TextBox 。

然后，在此时检查 buttonid 的值，方法是将鼠标悬停在其上或将其置于<$ c $的监视之下c> FireBug in FireFox 。



同时检查是否有任何元素（带有 buttonid ）是否存在于呈现的html中。

Now, the execution will break at that point when you double click on TextBox.
Then, check the value of buttonid at this point by either hovering on it or putting it in watch of FireBug in FireFox.

Also check whether there is any element (with buttonid) present in the rendered html or not.

你好，

请试试这个，

使用 btnSearch.StaticID 代替 btnSearch.ClientID

Hello,
Please try this,
Use btnSearch.StaticID instead of btnSearch.ClientID

txtBox.Attributes.Add("Ondblclick", "return clickButton(event, '" + btnSearch.StaticID + "')");

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