如何检查下拉菜单是否选中 [英] how to check the drop down is select or not

问题描述

我需要检查下拉列表是否被选中.如果选择它，我需要调用该函数.我尝试使用此代码.

if(dropdownlist1.selectitem！= null)
{
函数调用；
}

但这不起作用...
谁能帮我..
谢谢..

Hi,
i need to check whether the drop down list is select or not. if its selected i need to call the function. i tried with this code.

if(dropdownlist1.selectitem!=null)
{
function call;
}

but this is not working...
can anyone help me..
thanks..

推荐答案

捕获SelectedItem事件，然后通过代码处理该事件.

Capture the SelectedItem event and then handle that event via code.

if (price_drop.SelectedIndex.ToString() != "0")

          {

              uploadprice(price_drop, price_txt, ids);
          }

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