为GridView添加索引列
< asp:TemplateField HeaderText = " ID " > < ItemTemplate > <% # Container.DataItemIndex + 1 %> </ ItemTemplate > </ asp:TemplateField >二、批量删除列模板列代码：
< asp:TemplateField HeaderText = " 选择 " > < ItemTemplate > < asp:CheckBox ID = " chkSelect " runat = " server " /> </ ItemTemplate > </ asp:TemplateField >全选：
for ( int i = 0 ; i < gv.Rows.Count; i ++ ) { CheckBox chkSelect = (CheckBox)gv.Rows[i].FindControl("chkSelect"); chkSelect.Checked = true; }反选：
for ( int i = 0 ; i < gv.Rows.Count; i ++ ) { CheckBox chkSelect = (CheckBox)gv.Rows[i].FindControl("chkSelect"); chkSelect.Checked = !chkSelect.Checked; }取消选择：
for ( int i = 0 ; i < gv.Rows.Count; i ++ ) { CheckBox chkSelect = (CheckBox)gv.Rows[i].FindControl("chkSelect"); chkSelect.Checked = false; }删除：
for ( int i = 0 ; i < gv.Rows.Count; i ++ ) { CheckBox chkSelect = (CheckBox)gv.Rows[i].FindControl("chkSelect"); if (chkSelect.Checked) { //删除记录 } }三、删除表格选定记录
int id = ( int )MyDataGrid.DataKeys[e.Item.ItemIndex]; // 在调用前必须指定DataKeyNames属性为要获取 的主键。 string deleteCmd = " DELETE from Employee where emp_id = " + intEmpID.ToString();四、为按钮添加确认对话框
button.Attributes.Add( " onclick " , " return confirm(’确认?’) " );五、点击表格行链接另一页
private void grdCustomer_ItemDataBound( object sender, System.Web.UI.WebControls.DataGridItemEventArgs e) { //点击表格打开 if (e.Item.ItemType == ListItemType.Item e.Item.ItemType == ListItemType.AlternatingItem) e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);"); }六、超连接列传递参数
＜asp:HyperLinkColumn Target = " _blank " headertext = " ID号 " DataTextField = " id " NavigateUrl = " aaa.aspx?id=’ ＜ % # DataBinder.Eval(Container.DataItem, " 数据字段1 " ) % ＞’ & name = ’＜ % # DataBinder.Eval(Container.DataItem, " 数据字段2 " ) % ＞’ / ＞七、绑定日期格式
e.items.cell[ " time " ].text = DateTime.Parse(e.items.cell[ " time " ].text.ToString( " yyyy-MM-dd " ))八、统一捕获异常 Global.asax中：
protected void Application_Error(Object sender, EventArgs e) { if (Server.GetLastError() is HttpUnhandledException) Server.Transfer("MyErrorPage.aspx"); //编写添加到日志的代码Log.add();}九、自定义异常处理
using System; using System.Diagnostics; namespace MyAppException { /**//// ＜summary＞ /// 从系统异常类ApplicationException继承的应用程序异常处理类。 /// 自动将异常内容记录到Windows NT/2000的应用程序日志 /// ＜/summary＞ public class AppException:System.ApplicationException { public AppException() { if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。"); } public AppException(string message) { LogEvent(message); } public AppException(string message,Exception innerException) { LogEvent(message); if (innerException != null) { LogEvent(innerException.Message); } } //日志记录类 using System; using System.Configuration; using System.Diagnostics; using System.IO; using System.Text; using System.Threading; namespace MyEventLog { /**//// ＜summary＞ /// 事件日志记录类，提供事件日志记录支持 /// ＜remarks＞ /// 定义了4个日志记录方法 (error, warning, info, trace) /// ＜/remarks＞ /// ＜/summary＞ public class ApplicationLog { /**//// ＜summary＞ /// 将错误信息记录到Win2000/NT事件日志中 /// ＜param name="message"＞需要记录的文本信息＜/param＞ /// ＜/summary＞ public static void WriteError(String message) { WriteLog(TraceLevel.Error, message); } /**//// ＜summary＞ /// 将警告信息记录到Win2000/NT事件日志中 /// ＜param name="message"＞需要记录的文本信息＜/param＞ /// ＜/summary＞ public static void WriteWarning(String message) { WriteLog(TraceLevel.Warning, message); } /**//// ＜summary＞ /// 将提示信息记录到Win2000/NT事件日志中 /// ＜param name="message"＞需要记录的文本信息＜/param＞ /// ＜/summary＞ public static void WriteInfo(String message) { WriteLog(TraceLevel.Info, message); } /**//// ＜summary＞ /// 将跟踪信息记录到Win2000/NT事件日志中 /// ＜param name="message"＞需要记录的文本信息＜/param＞ /// ＜/summary＞ public static void WriteTrace(String message) { WriteLog(TraceLevel.Verbose, message); } /**//// ＜summary＞ /// 格式化记录到事件日志的文本信息格式 /// ＜param name="ex"＞需要格式化的异常对象＜/param＞ /// ＜param name="catchInfo"＞异常信息标题字符串.＜/param＞ /// ＜retvalue＞ /// ＜para＞格式后的异常信息字符串，包括异常内容和跟踪堆栈.＜/para＞ /// ＜/retvalue＞ /// ＜/summary＞ public static String FormatException(Exception ex, String catchInfo) { StringBuilder strBuilder = new StringBuilder(); if (catchInfo != String.Empty) { strBuilder.Append(catchInfo).Append("/r/n"); } strBuilder.Append(ex.Message).Append("/r/n").Append(ex.StackTrace); return strBuilder.ToString(); } /**//// ＜summary＞ /// 实际事件日志写入方法 /// ＜param name="level"＞要记录信息的级别（error,warning,info,trace).＜/param＞ /// ＜param name="messageText"＞要记录的文本.＜/param＞ /// ＜/summary＞ private static void WriteLog(TraceLevel level, String messageText) { try { EventLogEntryType LogEntryType; switch (level) { case TraceLevel.Error: LogEntryType = EventLogEntryType.Error; break; case TraceLevel.Warning: LogEntryType = EventLogEntryType.Warning; break; case TraceLevel.Info: LogEntryType = EventLogEntryType.Information; break; case TraceLevel.Verbose: LogEntryType = EventLogEntryType.SuccessAudit; break; default: LogEntryType = EventLogEntryType.SuccessAudit; break; } EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName ); //写入事件日志 eventLog.WriteEntry(messageText, LogEntryType); } catch {} //忽略任何异常 } } //class ApplicationLog } 十一、DataGrid行随鼠标变色十、Panel 横向滚动，纵向自动扩展
＜asp:panel style = " overflow-x:scroll;overflow-y:auto; " ＞＜ / asp:panel＞private void ItemDataBound( object sender, System.Web.UI.WebControls.DataGridItemEventArgs e) { if (e.Item.ItemType!=ListItemType.Header) { e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=/""+e.Item.Style["BACKGROUND-COLOR"]+"/""); e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=/""+ "#EEE6F8"+"/""); } }
十二、读取DataGrid控件的TextBox值
foreach (DataGrid dgi in yourDataGrid.Items) { TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId"); tb.Text. }十三、当点击编辑键时，控制文本框的大小
private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e) { for(int i=0;i＜e.Item.Cells.Count-1;i++) if(e.Item.ItemType==ListItemType.EditType) { e.Item.Cells[i].Attributes.Add("Width", "80px") } }十四、弹出对话框
private static string ScriptBegin = " ＜script language=/ " JavaScript/ " ＞ " ; private static string ScriptEnd = " ＜/script＞ " ; public static void ConfirmMessageBox( string PageTarget, string Content) { string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}"; ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd; Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler; ParameterPage.RegisterStartupScript("confirm",ConfirmContent); //Response.Write(strScript); }