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">
<!--

functiondisableOtherSubmit()
{varobj=event.srcElement;
varobjs=document.getElementsByTagName('INPUT');
for(vari=0;i<objs.length;i++)
{
if(objs[i].type.toLowerCase()=='submit')
{
objs[i].disabled=true;
}
}}

//-->
</script>

publicclassPreventMultiClick:System.Web.UI.Page
{
protectedSystem.Web.UI.WebControls.ButtonButton1;
protectedSystem.Web.UI.WebControls.ButtonButton2;
protectedSystem.Web.UI.WebControls.LinkButtonLinkButton1;
protectedSystem.Web.UI.WebControls.ButtonButton3;

privatevoidPage_Load(objectsender,System.EventArgse)
{
this.GetPostBackEventReference(this.Button3);//保证__doPostBack(eventTarget,eventArgument)正确注册
if(!IsPostBack)
{
System.Text.StringBuildersb=newSystem.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());
}
}

#regionWebFormDesignergeneratedcode
overrideprotectedvoidOnInit(EventArgse)
{
//
//CODEGEN:ThiscallisrequiredbytheASP.NETWebFormDesigner.
//
InitializeComponent();
base.OnInit(e);
}

///<summary>
///RequiredmethodforDesignersupport-donotmodify
///thecontentsofthismethodwiththecodeeditor.
///</summary>
privatevoidInitializeComponent()
{
this.Button3.Click+=newSystem.EventHandler(this.Button3_Click);
this.Load+=newSystem.EventHandler(this.Page_Load);

}
#endregion

privatevoidButton3_Click(objectsender,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;");”