ASP.NET常用语句1--20条,(很实用的) - 老张的专栏 - CSDN博客
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1.//弹出对话框.点击转向指定页面
Response.Write(" ");
Response.Write(" "); 2.//弹出对话框
Response.Write(" ");
3.//删除文件
string filename ="20059595157517.jpg";
pub.util.DeleteFile(HttpContext.Current.Server.MapPath("../file/") +filename);
4.//绑定下拉列表框datalist
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 <%# System.DateTime.Parse(DataBinder.Eval (Container.DataItem,"begtime").ToString()).ToShortDateString()%>
6.//标题带链接 <%# " "+ DataBinder.Eval(Container.DataItem,"proname")+" "%> 7.//修改转向 <%# " "+"修改 "+" "%> 8.//弹出确定按钮 <%# " "+"删除"+" "%> 9.//输出数据格式化 "{0:F2}" 是格式 F2表示小数点后剩两位 <%# DataBinder.Eval(Container, "DataItem.PriceMoney","{0:F2} ") %> 10.//提取动态网页内容
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
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: response.write("<script>window.open(’*.aspx? id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)< /script>") 接收参数: string a = Request.QueryString("id");
string b = Request.QueryString("id1");
12.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;}") 13.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() 14.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;
}
} 15.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 + "’)");
} 16.表格超连接列传递参数 <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")%>’ / >
17.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=’’;");
} 18.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"))
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 // 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 Cookie.Expires=[DateTime];
Response.Cookies("UserName").Expires = 0
本文来自CSDN博客,转载请标明出处:http://blog.csdn.net/jingshuaizh/archive/2008/09/17/2943774.aspx
Response.Write(" ");
Response.Write(" "); 2.//弹出对话框
Response.Write(" ");
3.//删除文件
string filename ="20059595157517.jpg";
pub.util.DeleteFile(HttpContext.Current.Server.MapPath("../file/") +filename);
4.//绑定下拉列表框datalist
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 <%# System.DateTime.Parse(DataBinder.Eval (Container.DataItem,"begtime").ToString()).ToShortDateString()%>
6.//标题带链接 <%# " "+ DataBinder.Eval(Container.DataItem,"proname")+" "%> 7.//修改转向 <%# " "+"修改 "+" "%> 8.//弹出确定按钮 <%# " "+"删除"+" "%> 9.//输出数据格式化 "{0:F2}" 是格式 F2表示小数点后剩两位 <%# DataBinder.Eval(Container, "DataItem.PriceMoney","{0:F2} ") %> 10.//提取动态网页内容
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
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: response.write("<script>window.open(’*.aspx? id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)< /script>") 接收参数: string a = Request.QueryString("id");
string b = Request.QueryString("id1");
12.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;}") 13.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() 14.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;
}
} 15.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 + "’)");
} 16.表格超连接列传递参数 <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")%>’ / >
17.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=’’;");
} 18.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"))
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 // 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 Cookie.Expires=[DateTime];
Response.Cookies("UserName").Expires = 0
本文来自CSDN博客,转载请标明出处:http://blog.csdn.net/jingshuaizh/archive/2008/09/17/2943774.aspx
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