if(!Page.IsPostBack)
{
System.Text.StringBuilder s = new System.Text.StringBuilder();
s.Ap
PEnd("a();");
s.Append(this.GetPostBackEventReference(this.Butto
n1));
this.Button1.Attributes.Add("onclick",s.ToString());
}
a() 是 JS
function a()
{
VAR ok=document.getElementById('Button1');
ok.disabled = true;
return true;
}
BTnSave.Attributes.Add("onclick","this.disabled='true';"+GetPostBackEventReference(btnSave));
一个问题稍微困扰了一下,后来解决了,btnSave.Attributes.Add("onclick","a();"+GetPostBackEventReference(btnSave)); 如果a()这个函数还包含其他验证,比如说一些
等,btnSave.Attributes.Add("onclick","return a();"+GetPostBackEventReference(btnSave)); 则不能进行。可以将JS代码全部在CS文件中写就OK拉。
<asp:Button ID="btnSumb
IT" runat="server" UseS
ubmitBehavior="false" OnClientClick="this.value='Sumbit';this.disabled=true; " Text="Sumbit" OnClick="btnSumbit_Click" />
PRotected void Page_Load(object sender, Event
args e)
{
btn.Attributes.Add("onclick", "
state=true;");
StringBuilder sb = new StringBuilder();
sb.Append("if (!state) return;");
sb.Append("var button=document.getElementByIdx_x('btn');");
sb.Append("button.value='Please W
ait
...';");
sb.Append("document.body.style.cursor='wait';");
sb.Append("button.disabled=true;");
string strScript = "<script>";
strScript = strScript + "var state=false;";
//将函数绑定到页面的onbeforeunload事件:
strScript = strScript + "window.attachEvent('onbeforeunload',function(){" + sb.ToString() + "});";
strScript = strScript + "</" + "script>";
Page.RegisterStartupScript("onbeforeunload", strScript);
}
protected void Submit_Click(object sender, EventArgs e)
{
//模拟长时间的按钮处理
System.T
hreading.Thread.Sleep(2000);
Response.Write("<script>alert('bbbbbb!!');" + "</" + "script>");
}
<asp:Button ID="btn" Text="Submit" OnClick="Submit_Click"
runat="server"/>
this.btnSubmit.Attributes["onclick"]=this.GetPostBackEventReference(this.btnSubmit)+";this.disabled=true;";//
防止重复提交