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Asp.net常用的51个代码(非常实用)

时间:2015/6/28来源:IT猫扑网作者:网管联盟我要评论(0)

  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 ='https://www.itmop.com/'</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=\"https://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("https://www.itmop.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")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />

  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.Tra

关键词标签:Asp.net

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