1. 打开新的窗口并传送参数:
传送参数:
response.write("
1<script>window.open('*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"')</script>
")
接收参数:
string a = Request.QueryString("id");
string b = Request.QueryString("id1");
2.为按钮添加对话框
Button1.Attributes.Add("onclick","return confirm('确认?')");
button.attributes.add("onclick","if(confirm('are you sure...?')){return true;}else{return false;}")
3.删除表格选定记录
int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
4.删除表格记录警告
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('您是否确定要删除这条信息');");
break;
default:
break;
}
}
5.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 + "');");
}
双击表格连接到另一页
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.href='../ShippedGrid.aspx?id=" + OrderItemID + "'");
}
双击表格打开新一页
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 + "')");
}
★特别注意:【?id=】 处不能为 【?id =】
6.表格超连接列传递参数
1<asp:hyperlinkcolumn &="" ```'="" datatextfield="id" headertext="ID号" name='```
2# DataBinder.Eval(Container.DataItem, "数据字段2")
3```' navigateurl="aaa.aspx?id='```
4# DataBinder.Eval(Container.DataItem, " target="_blank" 数据字段1")=""></asp:hyperlinkcolumn>
**7.表格点击改变颜色
** 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';");
}
写在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.关于日期格式
日期格式设定
DataFormatString="{0:yyyy-MM-dd}"
我觉得应该在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.获取错误信息并到指定页面
** 不要使用Response.Redirect,而应该使用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异常交给ASP.NET自己处理就okay了 :)
}
Redirect会导致post-back的产生从而丢失了错误信息,所以页面导向应该直接在服务器端执行,这样就可以在错误处理页面得到出错信息并进行相应的处理
10.清空Cookie
Cookie.Expires=[DateTime];
Response.Cookies("UserName").Expires = 0
11.自定义异常处理
//自定义异常处理类
using System;
using System.Diagnostics;
namespace MyAppException
{
///
1<summary>
2/// 从系统异常类ApplicationException继承的应用程序异常处理类。
3/// 自动将异常内容记录到Windows NT/2000的应用程序日志
4/// </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
{
///
1<summary>
2/// 事件日志记录类,提供事件日志记录支持
3/// <remarks>
4/// 定义了4个日志记录方法 (error, warning, info, trace)
5/// </remarks>
6/// </summary>
public class ApplicationLog
{
///
1<summary>
2/// 将错误信息记录到Win2000/NT事件日志中
3/// <param name="message"/>需要记录的文本信息
4/// </summary>
public static void WriteError(String message)
{
WriteLog(TraceLevel.Error, message);
}
///
1<summary>
2/// 将警告信息记录到Win2000/NT事件日志中
3/// <param name="message"/>需要记录的文本信息
4/// </summary>
public static void WriteWarning(String message)
{
WriteLog(TraceLevel.Warning, message);
}
///
1<summary>
2/// 将提示信息记录到Win2000/NT事件日志中
3/// <param name="message"/>需要记录的文本信息
4/// </summary>
public static void WriteInfo(String message)
{
WriteLog(TraceLevel.Info, message);
}
///
1<summary>
2/// 将跟踪信息记录到Win2000/NT事件日志中
3/// <param name="message"/>需要记录的文本信息
4/// </summary>
public static void WriteTrace(String message)
{
WriteLog(TraceLevel.Verbose, message);
}
///
1<summary>
2/// 格式化记录到事件日志的文本信息格式
3/// <param name="ex"/>需要格式化的异常对象
4/// <param name="catchInfo"/>异常信息标题字符串.
5/// <retvalue>
6/// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
7/// </retvalue>
8/// </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();
}
///
1<summary>
2/// 实际事件日志写入方法
3/// <param name="level"/>要记录信息的级别(error,warning,info,trace).
4/// <param name="messageText"/>要记录的文本.
5/// </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
}
12.Panel 横向滚动,纵向自动扩展
1<asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
13.回车转换成Tab
1<script event="onkeydown" for="document" language="javascript">
2if(event.keyCode==13 && event.srcElement.type!='button' && event.srcElement.type!='submit' && event.srcElement.type!='reset' && event.srcElement.type!=''&& event.srcElement.type!='textarea');
3event.keyCode=9;
4</script>
onkeydown="if(event.keyCode==13) event.keyCode=9"
http://dotnet.aspx.cc/exam/enter2tab.aspx
14.DataGrid超级连接列
DataNavigateUrlField="字段名" DataNavigateUrlFormatString=" http://xx/inc/delete.aspx?ID={0 }"
15.DataGrid行随鼠标变色
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
1<asp:templatecolumn headertext="ID" sortexpression="demo" visible="False">
2<itemtemplate>
3<asp:label id="lblColumn" runat="server" text='```
4# DataBinder.Eval(Container.DataItem, "ArticleID")
5```' width="80%"></asp:label>
6</itemtemplate>
7</asp:templatecolumn>
1<asp:templatecolumn headertext="选中">
2<headerstyle horizontalalign="Center" wrap="False"></headerstyle>
3<itemtemplate>
4<asp:checkbox id="chkExport" runat="server"></asp:checkbox>
5</itemtemplate>
6<edititemtemplate>
7<asp:checkbox enabled="true" id="chkExportON" runat="server"></asp:checkbox>
8</edititemtemplate>
9</asp:templatecolumn>
后台代码
protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
{
//改变列的选定,实现全选或全不选。
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.数字格式化
【```
#Container.DataItem("price")
#Container.DataItem("price","{0:¥#,##0.00}")
1
2int i=123456;
3string s=i.ToString("###,###.00");
4
5**18.日期格式化**
6
7【aspx页面内:```
8# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")
显示为: 2004-8-11 19:44:28
我只想要:2004-8-11 】
1# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")
应该如何改?
【格式化日期】
取出来,一般是object
((DateTime)objectFromDB).ToString("yyyy-MM-dd");
【日期的验证表达式】
A.以下正确的输入格式: [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.以下正确的输入格式:[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]))$
【大小写转换】
HttpUtility.HtmlEncode(string);
HttpUtility.HtmlDecode(string)
19.如何设定全局变量
Global.asax中
Application_Start()事件中
添加Application[属性名] = xxx;
就是你的全局变量
20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
【ASPNETMENU】点击菜单项弹出新窗口
在你的menuData.xml文件的菜单项中加入URLTarget="_blank"
如:
1<menudata imagesbaseurl="images/">
2<menugroup>
3<menuitem label="内参信息" url="Infomation.aspx"/>
4<menugroup id="BBC">
5<menuitem label="公告信息" lefticon="file.gif" url="Infomation.aspx" urltarget="_blank">
6<menuitem label="编制信息简报" lefticon="file.gif" url="NewInfo.aspx"/>
7......
8最好将你的aspnetmenu升级到1.2版
9
10**21.委托讨论**
11http://community.csdn.net/Expert/topic/2651/2651579.xml?temp=.7183191
12http://dev.csdn.net/develop/article/22/22951.shtm
13
14**22.读取DataGrid控件TextBox值**
15
16foreach(DataGrid dgi in yourDataGrid.Items)
17{
18TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
19tb.Text....
20}
21
22**23.在DataGrid中有3个模板列包含Textbox分别为 DG_ShuLiang (数量) DG_DanJian(单价) DG_JinE(金额)分别在5.6.7列,要求在录入数量及单价的时候自动算出金额即:数量*单价=金额还要求录入时限制为 数值型.我如何用客户端脚本实现这个功能?**
23
24〖思归〗
25<asp:templatecolumn headertext="数量">
26<itemtemplate>
27<asp:textbox id="ShuLiang" onkeyup="javascript:DoCal()" runat="server" text='```
28# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")
29```'></asp:textbox>
30<asp:regularexpressionvalidator controltovalidate="ShuLiang" errormessage="must be integer" id="revS" runat="server" validationexpression="^\d+$"></asp:regularexpressionvalidator>
31</itemtemplate>
32</asp:templatecolumn>
33<asp:templatecolumn headertext="单价">
34<itemtemplate>
35<asp:textbox id="DanJian" onkeyup="javascript:DoCal()" runat="server" text='```
36# DataBinder.Eval(Container.DataItem,"DG_DanJian")
37```'></asp:textbox>
38<asp:regularexpressionvalidator controltovalidate="DanJian" errormessage="must be numeric" id="revS2" runat="server" validationexpression="^\d+(\\.\d*)?$"></asp:regularexpressionvalidator>
39</itemtemplate>
40</asp:templatecolumn>
41<asp:templatecolumn headertext="金额">
42<itemtemplate>
43<asp:textbox id="JinE" runat="server" text='```
44# DataBinder.Eval(Container.DataItem,"DG_JinE")
45```'></asp:textbox>
46</itemtemplate>
47</asp:templatecolumn>
48<script language="javascript">
49function DoCal()
50{
51var e = event.srcElement;
52var row = e.parentNode.parentNode;
53var txts = row.all.tags("INPUT");
54if (!txts.length || txts.length < 3)
55return;
56
57var q = txts[txts.length-3].value;
58var p = txts[txts.length-2].value;
59
60if (isNaN(q) || isNaN(p))
61return;
62
63q = parseInt(q);
64p = parseFloat(p);
65
66txts[txts.length-1].value = (q * p).toFixed(2);
67}
68</script>
69
70**24.datagrid选定比较底下的行时,为什么总是刷新一下,然后就滚动到了最上面,刚才选定的行因屏幕的关系就看不到了**
71page_load
72page.smartNavigation=true
73
74**25.在Datagrid中修改数据,当点击编辑键时,数据出现在文本框中,怎么控制文本框的大小 ?**
75
76private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
77{
78for(int i=0;i<e.item.cells.count-1;i++) "80px")="" **26.对话框**="" e.item.cells[i].attributes.add("width",="" if(e.item.itemtype="ListItemType.EditType)" javascript\"="" private="" scriptbegin="<script language=\" static="" string="" {="" }="">";
79private static string ScriptEnd = "";
80
81public static void ConfirmMessageBox(string PageTarget,string Content)
82{
83
84string ConfirmContent="var retValue=window.confirm('"+Content+"');"+"if(retValue){window.location='"+PageTarget+"';}";
85
86ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
87
88Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
89ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
90//Response.Write(strScript);
91
92}</e.item.cells.count-1;i++)></menuitem></menugroup></menugroup></menudata>