防止页面被多次提交

王朝other·作者佚名  2006-11-24
窄屏简体版  字體: |||超大  

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.

 
 
 
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