ASP.NET Web开发实用代码举例(一)

文章关键字：|ASP.NET|Web|开发|代码|举例|对话框|点击|列表框|参数|

1.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>");

2.弹出对话框

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

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

<%# System.DateTime.Parse(DataBinder.Eval(Container.DataItem,"begtime").ToString()).ToShortDateString()%>

6.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>"%>

7.修改转向

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

8.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>"%>
9.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}") %>

10.提取动态网页内容

Uri uri = new Uri("http://www.xxx.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

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("＜script＞window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)＜/script＞")
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 + "’)");
}



原文地址：http://www.evget.com/zh-CN/Info/ReadInfo.aspx?id=9308