1. 打開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('您是否確定要刪除這條信息');");
break;
default:
break;
}
}
5.點擊表格行鏈接另一頁
private void grdCustomer_ItemDataBound
(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
{
//點擊表格打開
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，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 + "'");
}
雙擊表格打開新一頁
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" 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.獲取錯誤信息并到指定頁面
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會導(dǎo)致post－back的產(chǎn)生從而丟失了錯誤信息，所以頁面導(dǎo)向應(yīng)該直接在服務(wù)器端執(zhí)行，這樣就可以在錯誤處理頁面得到出錯信息并進行相應(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)一個未知錯誤。");
}
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個日志記錄方法 (error, warning, info, trace)
/// /remarks>
/// /summary>
public class ApplicationLog
{
/// summary>
/// 將錯誤信息記錄到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>
/// 實際事件日志寫入方法
/// param name="level">要記錄信息的級別（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，縱向自動擴展
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>
后臺代碼
protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
{
//改變列的選定，實現(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,一般是object
((DateTime)objectFromDB).ToString("yyyy-MM-dd");
【日期的驗證表達(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，點擊連接，打開新窗口？
HyperLinkColumn有個屬性Target,將器值設(shè)置成"_blank"即可.(Target="_blank")
【ASPNETMENU】點擊菜單項彈出新窗口
在你的menuData.xml文件的菜單項中加入URLTarget="_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="編制信息簡報" URL="NewInfo.aspx" LeftIcon="file.gif" />
......
最好將你的aspnetmenu升級到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個模板列包含Textbox分別為 DG_ShuLiang (數(shù)量) DG_DanJian(單價) DG_JinE(金額)分別在5.6.7列，要求在錄入數(shù)量及單價的時候自動算出金額即:數(shù)量*單價=金額還要求錄入時限制為 數(shù)值型.我如何用客戶端腳本實現(xiàn)這個功能?
〖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+$" />
/ItemTemplate>
/asp:TemplateColumn>
asp:TemplateColumn HeaderText="單價">
ItemTemplate>
asp:TextBox id="DanJian" runat='server'
Text='%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>'
onkeyup="javascript:DoCal()"
/>
asp:RegularExpressionValidator id="revS2" runat="server"
ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
/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，為什么總是刷新一下，然后就滾動到了最上面，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)點擊編輯鍵時，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;ie.Item.Cells.Count-1;i++)
if(e.Item.ItemType==ListItemType.EditType)
{
e.Item.Cells[i].Attributes.Add("Width", "80px")
}
}
25.對話框
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);
}
您可能感興趣的文章:- ASP開發(fā)中可能遇到的錯誤信息中文說明大全（整理收集）
- ASP開發(fā)網(wǎng)頁牢記注意事項
