javascript警报功能可在第二次点击时使用 [英] javascript alert function working on second click

问题描述

JavaScript警报功能可在第二次单击时使用..我正在将脚本放置在母版页上.在添加到购物车"按钮上，我正在调用该警报功能.但是在第一次单击添加到购物车"按钮时，它不起作用..但是在第二次单击时.弹出一个透明框，可以正常工作

我只是从gridview中找到按钮ID

JavaScript alert function works on second click.. i am putting script on master page. and on add to cart button i am calling that alert fuction. but on first click on add to cart button its doesn''t work.. but on second click. A clear box pops up and works fine

i am just finding the button id from gridview

for (int i = 0; i < GridView1.Rows.Count; i++)
           {
               Button btn = (Button)GridView1.Rows[i].FindControl("btnaddcart");
               //Change the property settings for the button in your TemplateField
               btn.Attributes["onclick"] = "showstock()";
           }

我正在调用位于gridview上的JavaScript函数.我只希望它在第一次单击时有效.但仍在进行第二次单击以添加到购物车按钮.

JavaScript代码是

and i am calling that JavaScript function which is on gridview. i just want that it works on first click. but ist working on second click to add to cart button.

the JavaScript code is

<script type="text/javascript" language="javascript">


       function showstock()
       {
           alert("Sorry This Product is not in stock!");

       }


   </script>

推荐答案

您好，您在错误的位置调用了js函数，请在gridview的rowdatabound事件中编写以下代码.

Hi, You have called js function at wrong place, pls write below code in rowdatabound event of gridview.

btn.Attributes.Add("onclick","showstock();");

亲爱的朋友，

尝试将您的代码如下所示:-

Dear Friend,

Try to put your code like this:-

btn.Attributes.Add("onclick","showstock();");

我希望这能解决问题.

谢谢

I hope this will work out for solution.

Thanks

您在哪里尝试运行此循环以添加按钮.
之后，您是否正在gridview上执行数据绑定?

如果您在gridview.rowcreated事件上添加了这些调用Java脚本功能的按钮"，它们应该可以工作.

尝试以下类似的方法(只是写了未测试的内容)

where are you trying to run this loop to add buttons.
are you doing a databind on gridview after that ?

If u add these ''buttons calling java-script function'' on gridview.rowcreated event, they should work.

try something like below (just wrote it not tested)

void GridView_RowCreated(Object sender, GridViewRowEventArgs e)
  {

    if(e.Row.RowType == DataControlRowType.DataRow)
    {
      // Retrieve the LinkButton control from the first column.
      Button btn= (Button)e.Row.FindControl("btnaddcart");
      
      btn.Attributes["onclick"] = "showstock()";
    }

  }

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