用于在DropDownList中分配和显示数据库值的javascript [英] javascript for assigning the and displaying the database value in a DropDownList
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问题描述
大家好，
我将数据库列"PermState"的值分配给DropDownList1，以便它应显示为DropDownList1的SelectedIndex，如下所示:
Hi Every one,
I am assigning the value of the database column "PermState" to DropDownList1, so that it should appear as DropDownList1''s SelectedIndex as given below:
DropDownList1.SelectedIndex = DropDownList1.Items.IndexOf(DropDownList1.Items.FindByText(dt.Rows[0]["PermState"].ToString().ToUpper()));
在这里，我需要使用javascript来代替C#代码.
请任何人为此提供一个JavaScript.
问候，
Here, I need to use a javascript to do the same instead of C# code.
Please any one give me a javascript for this.
Regards,
推荐答案
在Java脚本下面使用下拉菜单selectedIndex.
在服务器端或客户端传递对象实例(例如comboBox1.clientID)，并且必须选择文本女巫.
我认为这段代码将对您有所帮助.
示例:
use below java script for dropdown selectedIndex.
pass the object instance (eg. comboBox1.clientID) either in server side or client side and the text witch u have to select..
I think this code will help you.
Example:
<html>
<head>
<title>Customer Inquiry</title>
<SCRIPT language="JavaScript">
function setIndex(){
var obj = document.getElementById('select');
var YourText="MS"; // pass your text from here
obj.selectedIndex= getIndexOnText(obj,YourText);
}
function getIndexOnText(obj ,YourText)
{
for(i=0; i < obj .length;i=i+1){
matchText = obj .options[i].text;
if(YourText == matchText){
return i;
}
}
}
</SCRIPT>
</head>
<body>
<form name="sysaccess" >
<select name="select1" id="select">
<option value="CL">CL</option>
<option value="EL">EL</option>
<option value="PS">PS</option>
<option value="MS">MS</option>
<option value="GS">GS</option>
</select>
<input type="button" onclick="setIndex()()">
</form>
</body>
</html>
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