ASP.NET实用代码（一）

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.51aspx.com/bizpulic/upmeb.aspx'＜/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,"beg time").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\" confirm('你是否确定删除这条 记录吗?');\" href=\"pushproduct.aspx?dl="+DataBinder.Eval(Container.Data Item,"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.SelectI ndex+"&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(" confirm(’确认?’)"); button.attributes.add(" you sure...?’)){return true;}el se{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(" 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.WebContr ols.DataGridItemEventArgs e) { //点击表格打开 if (e.Item.ItemType == ListItemType.Item || e.Item.Ite mType == ListItemType.AlternatingItem) e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Ite m.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.Alter natingItem) { 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 == ListIt emType.AlternatingItem) { string orderItemID =e.item.cells[1].Text; e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + orderI temID + "’)"); }

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