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asp.net browse for folder

System.Windows.Forms;
FolderBrowserDialog ÌṩÁËÎÒÃÇÐèÒªµÄÎļþ¼Ðä¯ÀÀ¶Ô»°¿ò£¬ÒòΪÊÇCOM±ØÐëÊÇSTAµÄ£¬ÉèÖà AspCompat="true"À´½â¾öÕâ¸öÎÊÌâ¡£
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    protected void Button1_Click(object sender, EventArgs e)
    {
 
         if (folderBrowser.ShowDialog() == DialogResult.OK)
         {
             this.txtFolder.Text = folderBrowser.SelectedPath;
         }
    } ......

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 protected void Page_Load(object sender, EventArgs e)
    {
       
        if (!IsPostBack)
        {
            this.Button1.Attributes.Add("onclick", "return checkSame()");//ΪButton1Ìí¼Óonclick()ʼþ ,ButtonΪ·þÎñÆ÷¿Ø¼þ
        }
   }
 <script type="text/javascript">
   
   function trim(s) {
          return s.replace( /^\s*/, "" ).replace( /\s*$/, "" );
   }
      
  function checkSame(){
      var ob1=trim(document.getElementById('username').value);
      var patrn=/^[A-Za-z0-9_-]+$/;
      if(ob1.length==0) {
 &nbs ......

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´Ë´¦ÌṩµÄ´úÂëÓÃÀ´ÊµÏÖµ±asp.netÒ³ÃæÖеÄij¸öButton±»µã»÷ºódisableµô¸ÃÒ³ÃæÖÐËùÓеÄButton£¬´Ó¶ø·ÀÖ¹Ìá½»ÑÓʱµ¼ÖµĶà´ÎÌá½»¡£»ùÓÚ֮ǰµÄonceclickbutton½Å±¾.
//ASP.NETÖзÀÖ¹Ò³Ãæ¶à´ÎÌá½»µÄ´úÂë:javascript< script language="javascript"> < !-- function disableOtherSubmit() {
var obj = event.srcElement;
var objs = document.getElementsByTagName('INPUT');
for(var i=0; i< objs.length; i++)
{
if(objs[i].type.toLowerCase() == 'submit')
{
objs[i].disabled = true;
}
}
} //--> < /script>//ASP.NETÖзÀÖ¹Ò³Ãæ¶à´ÎÌá½»µÄ´úÂë:asp.netpublic class PreventMultiClick : System.Web.UI.Page {
protected System.Web.UI.WebControls.Button Button1; protected System.Web.UI.WebControls.Button Button2;
protected System.Web.UI.WebControls.LinkButton LinkButton1; protected System.Web.UI.WebControls.Button Button3; private void Page_Load(object sender, System.EventArgs e)
{
this.GetPostBackEventReference(this.Button3);
//±£Ö¤ __doPostBack(eventTarget, eventArgument) ÕýÈ·×¢²á if ......
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