[转]防止页面被多次提交

  作者:bestcomy 来自：博客园

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.


<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>

public 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);        //保证 __doPostBack(eventTarget, eventArgument) 正确注册
            if(!IsPostBack)
            {
                System.Text.StringBuilder sb = new System.Text.StringBuilder();
                sb.Append("if (typeof(Page_ClientValidate) == 'function') { if (Page_ClientValidate() == false) { return false; }}");    //保证验证函数的执行
                sb.Append("if(window.confirm('are you sure?')==false) return false;");        //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 Web Form Designer generated code
        override protected void OnInit(EventArgs e)
        {
            //
            // CODEGEN: This call is required by the ASP.NET Web Form Designer.
            //
            InitializeComponent();
            base.OnInit(e);
        }
        
        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </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.EventArgs e)
        {
            System.Threading.Thread.Sleep(3000);
            Response.Write("Hello world!");
        }
    }

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.