1. 打開(kāi)新的窗口并傳送參數(shù)：

傳送參數(shù)：

response.write("<script>window.open
('*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"')</script>")

接收參數(shù)：

string a  = Request.QueryString("id");
string b  = Request.QueryString("id1");

2.為按鈕添加對(duì)話框

Button1.Attributes.Add("onclick","return confirm('確認(rèn)?')");
button.attributes.add("onclick","if(confirm('are you sure...?'))
{return true;}else{return false;}")

3.刪除表格選定記錄

int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()

4.刪除表格記錄警告

private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
{
switch(e.Item.ItemType)
{
case ListItemType.Item :
case ListItemType.AlternatingItem :
case ListItemType.EditItem:
TableCell myTableCell;
myTableCell = e.Item.Cells[14];
LinkButton myDeleteButton ;
myDeleteButton = (LinkButton)myTableCell.Controls[0];
myDeleteButton.Attributes.Add
("onclick","return confirm('您是否確定要?jiǎng)h除這條信息');");
break;
default:
break;
}
}

5.點(diǎn)擊表格行鏈接另一頁(yè)

private void grdCustomer_ItemDataBound
(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
{
//點(diǎn)擊表格打開(kāi)
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 + "');");
}

雙擊表格連接到另一頁(yè)，在itemDataBind事件中

if(e.Item.ItemType == ListItemType.Item ||
e.Item.ItemType == ListItemType.AlternatingItem)
{
string OrderItemID =e.item.cells[1].Text;
...
e.item.Attributes.Add("ondblclick",
"location. + OrderItemID + "'");
}

雙擊表格打開(kāi)新一頁(yè)

if(e.Item.ItemType == ListItemType.Item ||
e.Item.ItemType == ListItemType.AlternatingItem)
{
string OrderItemID =e.item.cells[1].Text;
...
e.item.Attributes.Add("ondblclick",
"open('../ShippedGrid.aspx?id=" + OrderItemID + "')");
}

★特別注意：【?id=】 處不能為 【?id =】

6.表格超連接列傳遞參數(shù)

<asp:HyperLinkColumn Target="_blank"  headertext="ID號(hào)" DataTextField="id"
NavigateUrl="aaa.aspx?id='<%# DataBinder.Eval(Container.DataItem, "數(shù)據(jù)字段1")%>'
& name='<%# DataBinder.Eval(Container.DataItem, "數(shù)據(jù)字段2")%>' />

7.表格點(diǎn)擊改變顏色

if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
{
e.Item.Attributes.Add("onclick","this.style.backgroundColor='#99cc00';
this.style.color='buttontext';this.style.cursor='default';");
}

寫在DataGrid的_ItemDataBound里

if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
{
e.Item.Attributes.Add("onmouseover","this.style.backgroundColor='#99cc00';
this.style.color='buttontext';this.style.cursor='default';");
e.Item.Attributes.Add("onmouseout","this.style.backgroundColor='';this.style.color='';");
}

8.關(guān)于日期格式

日期格式設(shè)定

DataFormatString="{0:yyyy-MM-dd}"

我覺(jué)得應(yīng)該在itembound事件中

e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))

9.獲取錯(cuò)誤信息并到指定頁(yè)面

不要使用Response.Redirect,而應(yīng)該使用Server.Transfer

e.g

// in global.asax
protected void Application_Error(Object sender, EventArgs e) {
if (Server.GetLastError() is HttpUnhandledException)
Server.Transfer("MyErrorPage.aspx");

//其余的非HttpUnhandledException異常交給ASP.NET自己處理就okay了 :)
}

Redirect會(huì)導(dǎo)致post－back的產(chǎn)生從而丟失了錯(cuò)誤信息，所以頁(yè)面導(dǎo)向應(yīng)該直接在服務(wù)器端執(zhí)行，這樣就可以在錯(cuò)誤處理頁(yè)面得到出錯(cuò)信息并進(jìn)行相應(yīng)的處理

10.清空Cookie

Cookie.Expires=[DateTime];
Response.Cookies("UserName").Expires = 0

11.自定義異常處理

//自定義異常處理類
using System;
using System.Diagnostics;
namespace MyAppException
{
/// <summary>
/// 從系統(tǒng)異常類ApplicationException繼承的應(yīng)用程序異常處理類。
/// 自動(dòng)將異常內(nèi)容記錄到Windows NT/2000的應(yīng)用程序日志
/// </summary>
public class AppException:System.ApplicationException
{
public AppException()
{
if (ApplicationConfiguration.EventLogEnabled)
LogEvent("出現(xiàn)一個(gè)未知錯(cuò)誤。");
}
public AppException(string message)
{
LogEvent(message);
}
public AppException(string message,Exception innerException)
{
LogEvent(message);
if (innerException != null)
{
LogEvent(innerException.Message);
}
}
//日志記錄類
using System;
using System.Configuration;
using System.Diagnostics;
using System.IO;
using System.Text;
using System.Threading;
namespace MyEventLog
{
/// <summary>
///     事件日志記錄類，提供事件日志記錄支持
///     <remarks>
///         定義了4個(gè)日志記錄方法 (error, warning, info, trace)
///     </remarks>
/// </summary>
public class ApplicationLog
{
/// <summary>
///     將錯(cuò)誤信息記錄到Win2000/NT事件日志中
///     <param name="message">需要記錄的文本信息</param>
/// </summary>
public static void WriteError(String message)
{

WriteLog(TraceLevel.Error, message);
}

/// <summary>
///     將警告信息記錄到Win2000/NT事件日志中
///     <param name="message">需要記錄的文本信息</param>
/// </summary>
public static void WriteWarning(String message)
{

WriteLog(TraceLevel.Warning, message);
}

/// <summary>
///     將提示信息記錄到Win2000/NT事件日志中
///     <param name="message">需要記錄的文本信息</param>
/// </summary>
public static void WriteInfo(String message)
{
WriteLog(TraceLevel.Info, message);
}
/// <summary>
///     將跟蹤信息記錄到Win2000/NT事件日志中
///     <param name="message">需要記錄的文本信息</param>
/// </summary>
public static void WriteTrace(String message)
{

WriteLog(TraceLevel.Verbose, message);
}

/// <summary>
///    格式化記錄到事件日志的文本信息格式
///     <param name="ex">需要格式化的異常對(duì)象</param>
///     <param name="catchInfo">異常信息標(biāo)題字符串.</param>
///     <retvalue>
///         <para>格式后的異常信息字符串，包括異常內(nèi)容和跟蹤堆棧.</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>
///     實(shí)際事件日志寫入方法
///     <param name="level">要記錄信息的級(jí)別（error,warning,info,trace).</param>
///     <param name="messageText">要記錄的文本.</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 );
//寫入事件日志
eventLog.WriteEntry(messageText, LogEntryType);

}
catch {} //忽略任何異常
}   
} //class ApplicationLog
}

12.Panel 橫向滾動(dòng)，縱向自動(dòng)擴(kuò)展

<asp:panel  style="overflow-x:scroll;overflow-y:auto;"></asp:panel>

13.回車轉(zhuǎn)換成Tab

<script language="javascript" for="document" event="onkeydown">
if(event.keyCode==13 && event.srcElement.type!='button' &&
event.srcElement.type!='submit' && event.srcElement.type!='reset'
&& event.srcElement.type!=''&& event.srcElement.type!='textarea');
event.keyCode=9;
</script>
onkeydown="if(event.keyCode==13) event.keyCode=9"
http://dotnet.aspx.cc/exam/enter2tab.aspx

14.DataGrid超級(jí)連接列

DataNavigateUrlField="字段名" DataNavigateUrlFormatString="http://xx/inc/delete.aspx?ID={0}"

15.DataGrid行隨鼠標(biāo)變色

private void DGzf_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=\""+ "#EFF3F7"+"\"");
} 
}

16.模板列

<ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
<ITEMTEMPLATE>
<ASP:LABEL text='<%# DataBinder.Eval(Container.DataItem,
"ArticleID")%>' runat="server" width="80%" id="lblColumn" />
</ITEMTEMPLATE>
</ASP:TEMPLATECOLUMN>
<ASP:TEMPLATECOLUMN headertext="選中">
<HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
<ITEMTEMPLATE>
<ASP:CHECKBOX id="chkExport" runat="server" />
</ITEMTEMPLATE>
<EDITITEMTEMPLATE>
<ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
</EDITITEMTEMPLATE>
</ASP:TEMPLATECOLUMN>

后臺(tái)代碼

protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
{
//改變列的選定，實(shí)現(xiàn)全選或全不選。
CheckBox chkExport ;
if( CheckAll.Checked)
{
foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
{
chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
chkExport.Checked = true;
}
}
else
{
foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
{
chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
chkExport.Checked = false;
}
}
}

17.數(shù)字格式化

【<%#Container.DataItem("price")%>的結(jié)果是500.0000，怎樣格式化為500.00?】
<%#Container.DataItem("price","{0:￥#,##0.00}")%>
int i=123456;
string s=i.ToString("###,###.00");

18.日期格式化

【aspx頁(yè)面內(nèi)：<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
顯示為： 2004-8-11 19:44:28
我只想要：2004-8-11 】

<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>

應(yīng)該如何改？

【格式化日期】
取出來(lái),一般是object
((DateTime)objectFromDB).ToString("yyyy-MM-dd");

【日期的驗(yàn)證表達(dá)式】
A.以下正確的輸入格式： [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]

^((\d{2}(([02468][048])|([13579][26]))[\-\/\s]?((((0?[13578])|(1[02]))
[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|
([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468]
[1235679])|([13579][01345789]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]
?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|
([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))
(\s(((0?[1-9])|(1[0-2]))\:([0-5][0-9])((\s)|(\:([0-5][0-9])\s))
([AM|PM|am|pm]{2,2})))?$

B.以下正確的輸入格式：[0001-12-31], [9999 09 30], [2002/03/03]

^\d{4}[\-\/\s]?((((0[13578])|(1[02]))[\-\/\s]?(([0-2][0-9])|(3[01])))|
(((0[469])|(11))[\-\/\s]?(([0-2][0-9])|(30)))|(02[\-\/\s]?[0-2][0-9]))$

【大小寫轉(zhuǎn)換】

HttpUtility.HtmlEncode(string);
HttpUtility.HtmlDecode(string)
19.如何設(shè)定全局變量

Global.asax中
Application_Start()事件中
添加Application[屬性名] ＝ xxx;
就是你的全局變量

20.怎樣作到HyperLinkColumn生成的連接后，點(diǎn)擊連接，打開(kāi)新窗口？

HyperLinkColumn有個(gè)屬性Target,將器值設(shè)置成"_blank"即可.(Target="_blank")

【ASPNETMENU】點(diǎn)擊菜單項(xiàng)彈出新窗口
在你的menuData.xml文件的菜單項(xiàng)中加入U(xiǎn)RLTarget="_blank"
如：

<?xml version="1.0" encoding="GB2312"?>
<MenuData ImagesBaseURL="images/">
<MenuGroup>
<MenuItem Label="內(nèi)參信息" URL="Infomation.aspx" >
<MenuGroup ID="BBC">
<MenuItem Label="公告信息"   URL="Infomation.aspx"
URLTarget="_blank"  LeftIcon="file.gif"/>
<MenuItem Label="編制信息簡(jiǎn)報(bào)" URL="NewInfo.aspx" LeftIcon="file.gif" />
......

最好將你的aspnetmenu升級(jí)到1.2版

21.讀取DataGrid控件TextBox值

foreach(DataGrid dgi in yourDataGrid.Items)
{
TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
tb.Text....
}

22.在DataGrid中有3個(gè)模板列包含Textbox分別為 DG_ShuLiang (數(shù)量) DG_DanJian(單價(jià)) DG_JinE(金額)分別在5.6.7列，要求在錄入數(shù)量及單價(jià)的時(shí)候自動(dòng)算出金額即:數(shù)量*單價(jià)=金額還要求錄入時(shí)限制為 數(shù)值型.我如何用客戶端腳本實(shí)現(xiàn)這個(gè)功能?

〖思?xì)w〗

<asp:TemplateColumn HeaderText="數(shù)量">
<ItemTemplate>
<asp:TextBox id="ShuLiang" runat='server'
Text='<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>' 
onkeyup="javascript:DoCal()"
/>

<asp:RegularExpressionValidator id="revS" runat="server"
ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
</ItemTemplate>
</asp:TemplateColumn>

<asp:TemplateColumn HeaderText="單價(jià)">
<ItemTemplate>
<asp:TextBox id="DanJian" runat='server'
Text='<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>'
onkeyup="javascript:DoCal()"
/>

<asp:RegularExpressionValidator id="revS2" runat="server"
ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />

</ItemTemplate>
</asp:TemplateColumn>

<asp:TemplateColumn HeaderText="金額">
<ItemTemplate>
<asp:TextBox id="JinE" runat='server'
Text='<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>' />
</ItemTemplate>
</asp:TemplateColumn>
<script language="javascript">
function DoCal()
{
var e = event.srcElement;
var row = e.parentNode.parentNode;
var txts = row.all.tags("INPUT");
if (!txts.length || txts.length < 3)
return;

var q = txts[txts.length-3].value;
var p = txts[txts.length-2].value;
if (isNaN(q) || isNaN(p))
return;
q = parseInt(q);
p = parseFloat(p);
txts[txts.length-1].value = (q * p).toFixed(2);
}
</script>

23.datagrid選定比較底下的行時(shí)，為什么總是刷新一下，然后就滾動(dòng)到了最上面，剛才選定的行因屏幕的關(guān)系就看不到了

page_load
page.smartNavigation=true

24.在Datagrid中修改數(shù)據(jù)，當(dāng)點(diǎn)擊編輯鍵時(shí)，數(shù)據(jù)出現(xiàn)在文本框中，怎么控制文本框的大小 ?

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")
}  
}

25.對(duì)話框

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);

}

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