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asp.net 51个常用技巧总结

出处:本站原创   发布时间:2016-10-04 11:01:51    您是第0位浏览者

  asp.net 51个常用技巧总结

  来源: 网络

  随机为您推荐的文章:栈溢出笔记1.4 黑掉example_2

  在1.2节中我们编写了一个有漏洞的程序,通过输入可以控制其EIP,本节,我们要让example_2运行我们的MessageBox。再看看example_2: /*****************************************

  1.//弹出对话框.点击转向指定页面

  Response.Write("");

  s

  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

  6.//标题带链接

  7.//修改转向

  8.//弹出确定按钮

  9.//输出数据格式化 "{0:F2}"是格式 F2表示小数点后剩两位

  10.//提取动态网页内容

  Uri uri = new Uri("");

  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("")

  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

  ’ & name=’’ />

  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=’’;");

  }


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