1.弹出对话框.点击转向指定页面
Code:
Response.Write("<script>window.alert('该会员没有提交申请,请重新提交!')</script>");
Response.Write("<script>window.location ='http://www.msproject.cn/index.asp'</script>");
2.弹出对话框
Code:
Response.Write("<script language='javascript'>alert('产品添加成功!')</script >");
3.删除文件
Code:
string filename ="20059595157517.jpg";
pub.util.DeleteFile(HttpContext.Current.Server.MapPath("../file/")+filename);
4.绑定下拉列表框datalist
Code:
System.Data.DataView dv=conn.Exec_ex("select -1 as code,'请选择经营模式' as content from dealin union select code,content from dealin");
this.dealincode.DataSource=dv;
this.dealincode.DataTextField="content";
this.dealincode.DataValueField="code";
this.dealincode.DataBind();
this.dealincode.Items.FindByValue(dv[0]["dealincode"].ToString()).Selected=true;
5.时间去秒显示
Code:
<%# System.DateTime.Parse(DataBinder.Eval(Container.DataItem,"begtime").ToString()).ToShortDateString()%>
6.标题带链接
Code:
<%# "<a class=/"12c/" target=/"_blank/" href=/"http://www.51aspx/CV/_"+DataBinder.Eval(Container.DataItem,"procode")+".html/">"+ DataBinder.Eval(Container.DataItem,"proname")+"</a>"%>
7.修改转向
Code:
<%# "<A href=/"editpushpro.aspx?id="+DataBinder.Eval(Container.DataItem,"code")+"/">"+"修改"+"</A>"%>
8.弹出确定按钮
Code:
<%# "<A id=/"btnDelete/" onclick=/"return confirm('你是否确定删除这条记录吗?');/" href=/"pushproduct.aspx?dl="+DataBinder.Eval(Container.DataItem,"code")+"/">"+"删除"+"</A>"%>
9.输出数据格式化 "{0:F2}" 是格式 F2表示小数点后剩两位
Code:
<%# DataBinder.Eval(Container, "DataItem.PriceMoney","{0:F2}") %>
10.提取动态网页内容
Code:
Uri uri = new Uri("http://www.51aspx.com/");
WebRequest req = WebRequest.Create(uri);
WebResponse resp = req.GetResponse();
Stream str = resp.GetResponseStream();
StreamReader sr = new StreamReader(str,System.Text.Encoding.Default);
string t = sr.ReadToEnd();
this.Response.Write(t.ToString());
11.获取" . "后面的字符
Code:
i.ToString().Trim().Substring(i.ToString().Trim().LastIndexOf(".")+1).ToLower().Trim()
12. 打开新的窗口并传送参数:
传送参数:
Code:
response.write("<script>window.open('*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"')</script>")
接收参数:
Code:
string a = Request.QueryString("id");
string b = Request.QueryString("id1");
12.为按钮添加对话框
Code:
Button1.Attributes.Add("onclick","return confirm('确认?')");
button.attributes.add("onclick","if(confirm('are you sure...?')){return true;}else{return false;}")
13.删除表格选定记录
Code:
int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
string deleteCmd = "Delete from Employee where emp_id = " + intEmpID.ToString()
14.删除表格记录警告
Code:
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;
}
}
15.点击表格行链接另一页
Code:
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
Code:
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
Code:
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 + "')");
}
16.表格超连接列传递参数
Code:
<asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id='
<%# DataBinder.Eval(Container.DataItem, "数据字段1")%>' & />
17.表格点击改变颜色
Code:
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
Code:
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='';");
}
18.关于日期格式
日期格式设定
Code:
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"))
Code:
19.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
Code:
// 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
20.清空Cookie
Code:
Cookie.Expires=[DateTime];
Response.Cookies("UserName").Expires = 0
21.自定义异常处理
Code:
//自定义异常处理类
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>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>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>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>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>需要格式化的异常对象</param>
/// <param>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>要记录信息的级别(error,warning,info,trace).</param>
/// <param>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
}
22.Panel 横向滚动,纵向自动扩展
Code:
<asp:panel></asp:panel>
23.回车转换成Tab
(1)
Code:
<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>
(2) //当在有keydown事件的控件上敲回车时,变为tab
Code:
public void Tab(System.Web .UI.WebControls .WebControl webcontrol)
{
webcontrol.Attributes .Add ("onkeydown", "if(event.keyCode==13) event.keyCode=9");
}
24.DataGrid超级连接列
Code:
DataNavigateUrlField="字段名" DataNavigateUrlFormatString="http://xx/inc/delete.aspx?ID={0}"
25.DataGrid行随鼠标变色
Code:
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"+"/"");
}
}
26.模板列
Code:
<ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
<ITEMTEMPLATE>
<ASP LABEL text='<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>' runat="server" />
</ITEMTEMPLATE>
</ASP:TEMPLATECOLUMN>
<ASP:TEMPLATECOLUMN headertext="选中">
<HEADERSTYLE wrap="False" horiz></HEADERSTYLE>
<ITEMTEMPLATE>
<ASP:CHECKBOX runat="server" />
</ITEMTEMPLATE>
<EDITITEMTEMPLATE>
<ASP:CHECKBOX runat="server" enabled="true" />
</EDITITEMTEMPLATE>
</ASP:TEMPLATECOLUMN>
后台代码
Code:
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;
}
}
}
27.数字格式化
Code:
【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
<%#Container.DataItem("price","{0:¥#,##0.00}")%>
int i=123456;
string s=i.ToString("###,###.00");
28.日期格式化
【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
显示为: 2004-8-11 19:44:28
我只想要:2004-8-11 】
Code:
<%# 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
Code:
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);
29.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
30.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:
Code:
<?xml version="1.0" encoding="GB2312"?>
<MenuData ImagesBaseURL="images/">
<MenuGroup>
<MenuItem Label="内参信息" URL="Infomation.aspx" >
<MenuGroup>
<MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
<MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
最好将你的aspnetmenu升级到1.2版
31.读取DataGrid控件TextBox值
Code:
foreach(DataGrid dgi in yourDataGrid.Items)
{
TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
tb.Text....
}
33.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?
Code:
<asp:TemplateColumn HeaderText="数量">
<ItemTemplate>
<asp:TextBox runat='server' Text='<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>'
/>
<asp:RegularExpressionValidator runat="server" C ErrorMessage="must be integer" Validati />
</ItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn HeaderText="单价">
<ItemTemplate>
<asp:TextBox runat='server' Text='<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>'
/>
<asp:RegularExpressionValidator runat="server" C ErrorMessage="must be numeric" Validati />
</ItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn HeaderText="金额">
<ItemTemplate>
<asp:TextBox 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>
34.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。
Code:
page_load
page.smartNavigation=true
35.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 ?
Code:
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.Attributes.Add("Width", "80px")
}
}
36.对话框
Code:
private static string ScriptBegin = "<script language=/"JavaScript/">";
private static string ScriptEnd = "</script>";
public static void ConfirmMessageBox(string PageTarget,string Content)
{
string C+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);
}
37. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
1.1 取当前年月日时分秒
currentTime=System.DateTime.Now;
1.2 取当前年
int 年= DateTime.Now.Year;
1.3 取当前月
int 月= DateTime.Now.Month;
1.4 取当前日
int 日= DateTime.Now.Day;
1.5 取当前时
int 时= DateTime.Now.Hour;
1.6 取当前分
int 分= DateTime.Now.Minute;
1.7 取当前秒
int 秒= DateTime.Now.Second;
1.8 取当前毫秒
int 毫秒= DateTime.Now.Millisecond;
38.自定义分页代码:
先定义变量 :
Code:
public static int pageCount; //总页面数
public static int curPageIndex=1; //当前页面
下一页:
if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
{
DataGrid1.CurrentPageIndex += 1;
curPageIndex+=1;
}
bind(); // DataGrid1数据绑定函数
上一页:
if(DataGrid1.CurrentPageIndex >0)
{
DataGrid1.CurrentPageIndex += 1;
curPageIndex-=1;
}
bind(); // DataGrid1数据绑定函数
直接页面跳转:
int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
if(a<DataGrid1.PageCount)
{
this.DataGrid1.CurrentPageIndex=a;
}
bind();
39.DataGrid使用:
添加删除确认:
Code:
private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
{
foreach(DataGridItem di in this.DataGrid1.Items)
{
if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
{
((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm('确认删除此项吗?');");
}
}
}
样式交替:
Code:
ListItemType itemType = e.Item.ItemType;
if (itemType == ListItemType.Item )
{
e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor='#FFFFFF';";
e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor='#d9ece1';cursor='hand';" ;
}
else if( itemType == ListItemType.AlternatingItem)
{
e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor='#a0d7c4';";
e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor='#d9ece1';cursor='hand';" ;
}
添加一个编号列:
Code:
DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
for(int i=0;i<dt.Rows.Count;i++)
{
dt.Rows["number"]=(i+1).ToString();
}
DataGrid1.DataSource=dt;
DataGrid1.DataBind();
DataGrid1中添加一个CheckBox,页面中添加一个全选框
private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
{
foreach(DataGridItem thisitem in DataGrid1.Items)
{
((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
}
}
将当前页面中DataGrid1显示的数据全部删除
Code:
foreach(DataGridItem thisitem in DataGrid1.Items)
{
if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
{
string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
Del (strloginid); //删除函数
}
}
40.当文件在不同目录下,需要获取数据库连接字符串(如果连接字符串放在Web.config,然后在Global.asax中初始化)
在Application_Start中添加以下代码:
Code:
Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
AppSettings["ConnStr"].ToString();
41. 变量.ToString()
字符型转换 转为字符串
Code:
12345.ToString("n"); //生成 12,345.00
12345.ToString("C"); //生成 ¥12,345.00
12345.ToString("e"); //生成 1.234500e+004
12345.ToString("f4"); //生成 12345.0000
12345.ToString("x"); //生成 3039 (16进制)
12345.ToString("p"); //生成 1,234,500.00%
42、变量.Substring(参数1,参数2);
截取字串的一部分,参数1为左起始位数,参数2为截取几位。 如:string s1 = str.Substring(0,2);
43.在自己的网站上登陆其他网站:(如果你的页面是通过嵌套方式的话,因为一个页面只能有一个FORM,这时可以导向另外一个页面再提交登陆信息)
Code:
<SCRIPT language="javascript">
<!--
function gook(pws)
{
frm.submit();
}
//-->
</SCRIPT> <body leftMargin="0" topMargin="0" marginwidth="0" marginheight="0">
<form action=" " method="post">
<tr>
<td>
<input type="hidden" size="1" runat="server">
<input type="hidden" size="1" runat="server">
<input type="hidden" size="1" runat="server">
<INPUT type="hidden" maxLength="20" size="1" value="5">
<INPUT type="hidden" size="1" value="2">
</td>
</tr>
</form>
文本框的名称必须是你要登陆的网页上的名称,如果源码不行可以用vsniffer 看看。
下面是获取用户输入的登陆信息的代码:
Code:
string name;
name=Request.QueryString["EmailName"];
try
{
int a=name.IndexOf("@",0,name.Length);
f_user.Value=name.Substring(0,a);
f_domain.Value=name.Substring(a+1,name.Length-(a+1));
f_pass.Value=Request.QueryString["Psw"];
}
catch
{
Script.Alert("错误的邮箱!");
Server.Transfer("index.aspx");
}
44.datagrid分页中如果删除时出现超出索引
Code:
public void jumppage(System.Web.UI.WebControls.DataGrid dg)
{
int int_PageLess; //定义页面跳转的页数
//如果当前页是最后一页
if(dg.CurrentPageIndex == dg.PageCount-1)
{
//如果就只有一页
if(dg.CurrentPageIndex == 0)
{
//删除后页面停在当前页
dg.CurrentPageIndex = dg.PageCount-1;
}
else
{
//如果最后一页只有一条记录
if((dg.Items.Count % dg.PageSize == 1) || dg.PageSize == 1)
{
//把最后一页最后一条记录删除后,页面应跳转到前一页
int_PageLess = 2;
}
else //如果最后一页的记录数大于1,那么在最后一页删除记录后仍然停在当前页
{
int_PageLess = 1;
}
dg.CurrentPageIndex = dg.PageCount - int_PageLess;
}
}
}
45.警告窗口
/**//// <summary>
/// 服务器端弹出alert对话框
/// </summary>
/// <param>提示信息,例子:"不能为空!"</param>
/// <param>Page类</param>
Code:
public void Alert(string str_Message,Page page)
{
page.RegisterStartupScript("","<script>alert('"+str_Message+"');</script>");
}
36.重载此警告窗口,使某控件获得焦点
Code:
/**//// <summary>
/// 服务器端弹出alert对话框,并使控件获得焦点
/// </summary>
/// <param>获得焦点控件Id值,比如:txt_Name</param>
/// <param>提示信息,例子:"请输入您姓名!"</param>
/// <param>Page类</param>
public void Alert(string str_Ctl_Name,string str_Message,Page page)
{
page.RegisterStartupScript("","<script>alert('"+str_Message+"');document.forms(0)."+str_Ctl_Name+".focus(); document.forms(0)."+str_Ctl_Name+".select();</script>");
}
47.确认对话框
Code:
/**//// <summary>
/// 服务器端弹出confirm对话框
/// </summary>
/// <param>提示信息,例子:"您是否确认删除!"</param>
/// <param>隐藏Botton按钮Id值,比如:btn_Flow</param>
/// <param>Page类</param>
public void Confirm(string str_Message,string btn,Page page)
{
page.RegisterStartupScript("","<script> if (confirm('"+str_Message+"')==true){document.forms(0)."+btn+".click();}</script>");
}
48.重载确认对话框,点击确定触发一个隐藏按钮事件,点击取消触发一个隐藏按钮事件
Code:
/**//// <summary>
/// 服务器端弹出confirm对话框,询问用户准备转向那些操作,包括“确定”和“取消”时的操作
/// </summary>
/// <param>提示信息,比如:"成功增加数据,单击/"确定/"按钮填写流程,单击/"取消/"修改数据"</param>
/// <param>"确定"按钮id值</param>
/// <param>"取消"按钮id值</param>
/// <param>Page类</param>
public void Confirm(string str_Message,string btn_Redirect_Flow,string btn_Redirect_Self,Page page)
{
page.RegisterStartupScript("","<script> if (confirm('"+str_Message+"')==true){document.forms(0)."+btn_Redirect_Flow+".click();}else{document.forms(0)."+btn_Redirect_Self+".click();}</script>");
}
49.获得焦点
Code:
/**//// <summary>
/// 使控件获得焦点
/// </summary>
/// <param>获得焦点控件Id值,比如:txt_Name</param>
/// <param>Page类</param>
public void GetFocus(string str_Ctl_Name,Page page)
{
page.RegisterStartupScript("","<script>document.forms(0)."+str_Ctl_Name+".focus(); document.forms(0)."+str_Ctl_Name+".select();</script>");
}
50.子窗体返回主窗体
Code:
**////<summary>
///名称:redirect
///功能:子窗体返回主窗体
///参数:url
///返回值:空
///</summary>
public void redirect(string url,Page page)
{
if ( Session["IfDefault"]!=(object)"Default")
{
page.RegisterStartupScript("","<script>window.top.document.location.href='"+url+"';</script>");
}
}
51.判断是否为数字
Code:
/**//// <summary>
/// 名称:IsNumberic
/// 功能:判断输入的是否是数字
/// 参数:string oText:源文本
/// 返回值: bool true:是 false:否
/// </summary>
public bool IsNumberic(string oText)
{
try
{
int var1=Convert.ToInt32 (oText);
return true;
}
catch
{
return false;
}
}
获得字符串实际长度(包括中文字符)
Code:
//获得字符串oString的实际长度
public int StringLength(string oString)
{
byte[] strArray=System.Text .Encoding.Default .GetBytes (oString);
int res=strArray.Length ;
return res;
}
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