新手必须了解的ASP.NET语句
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//弹出对话框。点击转向指定页面
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.51aspx.com/bizpulic/upmeb.aspx' </script>);
//弹出对话框
Response.Write( <script language='javascript'>alert('产品添加成功!')</script >);
//删除文件
string filename =20059595157517.jpg;
pub.util.DeleteFile(HttpContext.Current.Server.MapPath(../file/)+filename);
//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;
//时间去秒显示
<%# System.DateTime.Parse(DataBinder.Eval
(Container.DataItem,begtime).ToString()).ToShortDateString()%>
//标题带链接
<%# <a class=\12c\ target=\_blank\href=\http://www.51aspx/CV/_+DataBinder.Eval
(Container.DataItem,procode)+.html\>+
DataBinder.Eval(Container.DataItem,proname)+ </a>%>
//修改转向
<%# <A href=\editpushpro.aspx?id=+DataBinder.Eval(Container.DataItem,code)+\>+修改+ </A>%>
//弹出确定按钮
<%# <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>%>
//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}) %>
//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());
//获取" . "后面的字符
i.ToString().Trim().Substring(i.ToString().Trim().LastIndexOf(.)+1).ToLower().Trim()
//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=+
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</script>)
// 接收参数:
string a = Request.QueryString(id);
string b = Request.QueryString(id1);
//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
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//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()
//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;
}
}
//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 + ’));
}
//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)%>’ />
//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=’’;);
}
//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"))
//.获取错误信息并到指定页面 不要使用Response.Redirect,而应该使用Server.Transfere.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
//清空Cookie Cookie.Expires=[DateTime];
Response.Cookies(UserName).Expires = 0
这个家伙很懒