ASP.NET實用代碼（一）

1.彈出對話框.點擊轉向指定頁面

CODE:
Response.Write("＜script＞window.alert('該會員沒有提交申請,請重新提交！')
＜/script＞");
Response.Write("＜script＞window.location 
='http://www.51aspx.com/bizpulic/upmeb.aspx'＜/script＞");

2.彈出對話框

CODE:
Response.Write("＜script language='javascript'＞
alert('產品添加成功！')＜/script ＞
");

3.刪除文件

CODE:
string filename ="20059595157517.jpg";
pub.util.DeleteFile(HttpContext.Current.Server.MapPath
("../file/")+filename);

4.綁定下拉列表框datalist

CODE:
System.Data.DataView dv=conn.Exec_ex("select -1 as code,'請選擇經營模式' 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.時間去秒顯示

CODE:
＜%# System.DateTime.Parse(DataBinder.Eval(Container.DataItem,"beg
time").ToString()).ToShortDateString()%＞

6.標題帶鏈接

CODE:
＜%# "＜a class=\"12c\" target=\"_blank\" href=\"http://www.51aspx/
CV/_"+DataBinder.Eval(Container.DataItem,"procode")+".html\
"＞"+ DataBinder.Eval(Container.DataItem,"proname")+"＜/a＞"%＞

7.修改轉向

CODE:
＜%# "＜A href=\"editpushpro.aspx?id="+DataBinder.Eval(Container.DataItem,
"code")+"\"＞"+"修改"+"＜/A＞"%＞

8.彈出確定按鈕

CODE:
＜%# "＜A id=\"btnDelete\"  confirm('你是否確定刪除這條
記錄嗎?');\" href=\"pushproduct.aspx?dl="+DataBinder.Eval(Container.Data
Item,"code")+"\"＞"+"刪除"+"＜/A＞"%＞

9.輸出數據格式化 "{0:F2}" 是格式 F2表示小數點後剩兩位

CODE:
＜%# DataBinder.Eval(Container, "DataItem.PriceMoney","{0:F2}") %＞

10.提取動態網頁內容

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.獲取" . "後面的字符

CODE:
i.ToString().Trim().Substring(i.ToString().Trim().LastIndexOf(".")
+1).ToLower().Trim()

12.打開新的窗口並傳送參數：

傳送參數：

CODE:
response.write("＜script＞window.open(’*.aspx?id="+this.DropDownList1.SelectI
ndex+"&id1="+...+"’)＜/script＞")

接收參數：

CODE:
string a = Request.QueryString("id");
string b = Request.QueryString("id1");

12.爲按鈕添加對話框

CODE:
Button1.Attributes.Add(" confirm(’確認?’)");
button.attributes.add(" you sure...?’)){return true;}el
se{return false;}")

13.刪除表格選定記錄

CODE:
int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
string deleteCmd = "Delete from Employee where emp_id = " + intEmpID.ToString()

14.刪除表格記錄警告

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(’您是否確定要刪除這條信息’);");
break;
default:
break;
}
}

15.點擊表格行鏈接另一頁

CODE:
private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebContr
ols.DataGridItemEventArgs e)
{
//點擊表格打開
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 + "’);");
}

雙擊表格連接到另一頁

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 + "’");
}

雙擊表格打開新一頁

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 + "’)");
}