Detailed explanation of how javascript operates server control code examples

js select server control select and dropdownlist

1. js operation server control select

     ==请选择==
     是
     否

//js操作服务器控件dropdownlist
    
        选项0   
   选项1  
    
 
  选项0
  选项1 

JS code:

document.getElementById("ddlFolder").value="0";//0为你要选中的项的value

2 . Select an item based on the Text value setting

var DropDownListCurrencyNew =  document.getElementById("ddlFolder");
for(i = 0; i < DropDownListCurrencyNew.options.length; i++)
{
          if(DropDownListCurrencyNew.options[i].text == "选项0")    
           {
               DropDownListCurrencyNew.options[i].selected = true; 
          }
}

js reads the value and text of the DropDownList selected item

Value:

var selValue = document.getElementById("DropDownList1").options[document.getElementById("DropDownList1").selectedIndex].value;

Text:

var selText = document.getElementById("DropDownList1").options[document.getElementById("DropDownList1").selectedIndex].text;

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