function doClick(e, buttonName) {
        var key;
        if (window.event)
            key = window.event.keyCode;
        else
            key = e.which;

        if (key == 13) {
            var btn = document.getElementById(buttonName);
            if (btn != null) {
                btn.click();
            }
            if (window.event)
            {
                e.keyCode = 0;
                e.returnValue = false;
                return false;
            }
            else {
                return false;
            }
        }
    }

http://helephant.com/2009/02/improving-the-way-aspnet-handles-404-requests/

        <customErrors mode="On">
            <error statusCode="404" redirect="404.aspx" />
        </customErrors>

        <httpModules>
            <add name="ErrorModule" type="ErrorModule, App_Code"/>
        </httpModules>

ErrorModule : IHttpModule

    public void Init(HttpApplication context)
    {
        context.Error += context_Error;
    }

    #endregion

    void context_Error(object sender, EventArgs e)
    {
        var context = HttpContext.Current;

        var error = context.Server.GetLastError() as HttpException;
        if (error.GetHttpCode() == 404)
        {

            var config =
                (CustomErrorsSection)WebConfigurationManager.GetSection("system.web/customErrors");
            if (config.Mode == CustomErrorsMode.On ||
                (config.Mode == CustomErrorsMode.RemoteOnly && context.Request.Url.Host != "localhost"))
            {
                context.Response.StatusCode = 404;
                //Server.ClearError();
                if (config.Errors["404"] != null)
                    HttpContext.Current.Server.Transfer(config.Errors["404"].Redirect);
                else
                    HttpContext.Current.Server.Transfer(config.DefaultRedirect);
            }
        }
    }

把自带的Sqlserver 2005 express 版卸载后，所以的solution文件就打不开了

Project could not be opened because the Microsoft Visual C# 2008 compiler could not be created. QueryService for failed.

--》

devenv.exe /ResetSkipPkgs

http://www.blakems.com/archives/000077.html

.tbl {
	table-layout:fixed;
	border-top: 5px solid #333;
	border-collapse: collapse;
	background: #fff;
	 }
.tbl td {
	border-bottom: 1px dashed #333;
	padding: 2px 5px;
	text-overflow:ellipsis;
	overflow:hidden;
	white-space:nowrap;
 } 

DBCC CHECKIDENT(TableName, RESEED, 0)

        private void btn1_Click(object sender, EventArgs e)
        {
            SetControlStatusOnSearch(true);
        }

        private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
        {
            backgroundWorker1.ReportProgress(i);
        }    

        private void backgroundWorker1_ProgressChanged(object sender, ProgressChangedEventArgs e)
        {
            progressBar1.Value = e.ProgressPercentage;
        }

        private void backgroundWorker1_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
        {
            MessageBox.ShowMessage("Work complete");
        }

       [Browsable(true), Category("NewDynamic")]
        public int VirtualItemCount
        {
            get
            {
                if (ViewState["pgv_vitemcount"] == null)
                    ViewState["pgv_vitemcount"] = -1;
                return Convert.ToInt32(ViewState["pgv_vitemcount"]);
            }
            set
            {
                ViewState["pgv_vitemcount"] = value;
            }
        }

这样不会错：Response.Redirect(url);

这样会错：
        try
        {
            Response.Redirect(url);
        }
        catch (Exception ex)
        {       }

这样不会会错：
        try
        {
            Response.Redirect(url, false);
        }
        catch (Exception ex)
        {       }