ASP.NET防止页面被多次提交

出处:http://blog.youkuaiyun.com/Teng_s2000/archive/2005/10/17/505928.aspx
此处提供的代码用来实现当asp.net页面中的某个Button被点击后disable掉该页面中所有的Button，从而防止提交延时导致的多次提交。基于之前的onceclickbutton脚本.

< scriptlanguage = " 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 >

public class PreventMultiClick:System.Web.UI.Page
{
protected System.Web.UI.WebControls.ButtonButton1;
protected System.Web.UI.WebControls.ButtonButton2;
protected System.Web.UI.WebControls.LinkButtonLinkButton1;
protected System.Web.UI.WebControls.ButtonButton3;

private void Page_Load( object sender,System.EventArgse)
{
this .GetPostBackEventReference( this .Button3); // 保证__doPostBack(eventTarget,eventArgument)正确注册
if ( ! IsPostBack)
{
System.Text.StringBuildersb = new System.Text.StringBuilder();
sb.Append( " if(typeof(Page_ClientValidate)=='function'){if(Page_ClientValidate()==false){returnfalse;}} " ); // 保证验证函数的执行
sb.Append( " if(window.confirm('areyousure?')==false)returnfalse; " ); // 自定义客户端脚本
sb.Append( " disableOtherSubmit(); " ); // disable所有submit按钮
sb.Append( this .GetPostBackEventReference( this .Button3)); // 用__doPostBack来提交，保证按钮的服务器端click事件执行
sb.Append( " ; " );
Button3.Attributes.Add( " onclick " ,sb.ToString());
}
}

#region WebFormDesignergeneratedcode
override protected void OnInit(EventArgse)
{
//
// CODEGEN:ThiscallisrequiredbytheASP.NETWebFormDesigner.
//
InitializeComponent();
base .OnInit(e);
}

/// <summary>
/// RequiredmethodforDesignersupport-donotmodify
/// thecontentsofthismethodwiththecodeeditor.
/// </summary>
private void InitializeComponent()
{
this .Button3.Click += new System.EventHandler( this .Button3_Click);
this .Load += new System.EventHandler( this .Page_Load);

}
#endregion

private void Button3_Click( object sender,System.EventArgse)
{
System.Threading.Thread.Sleep( 3000 );
Response.Write( " Helloworld! " );
}
}

此处只是disable掉所有的submit button, 我觉得其它的可提交控件也是可以通过类似的方法来disable的.

注：此方法在2.0下需要修改，ImageButton无效，只能添加“sb.Append(";this.disabled=true;");”