• ASP.NET常用语句120条,(很实用的)


    1.//弹出对话框.点击转向指定页面
    Response.Write(&quot; <script>window.alert('该会员没有提交申请,请重新提交!')

    </script>&quot;);
    Response.Write(&quot; <script>window.location

    ='http://www.51aspx.com/bizpulic/upmeb.aspx' </script>&quot;);

    2.//弹出对话框
    Response.Write(&quot; <script language='javascript'>alert('产品添加成功!')

    </script >&quot;);
    3.//删除文件
    string filename =&quot;20059595157517.jpg&quot;;
    pub.util.DeleteFile(HttpContext.Current.Server.MapPath(&quot;../file/&quot;)

    +filename);


    4.//绑定下拉列表框datalist
    System.Data.DataView dv=conn.Exec_ex(&quot;select -1 as code,'请选择经营模式'

    as content from dealin union select code,content from dealin&quot;);
    this.dealincode.DataSource=dv;
    this.dealincode.DataTextField=&quot;content&quot;;
    this.dealincode.DataValueField=&quot;code&quot;;    
    this.dealincode.DataBind();
    this.dealincode.Items.FindByValue(dv[0][&quot;dealincode&quot;].ToString

    ()).Selected=true;

    5.//时间去秒显示

    <%# System.DateTime.Parse(DataBinder.Eval

    (Container.DataItem,&quot;begtime&quot;).ToString()).ToShortDateString()%>


    6.//标题带链接

    <%# &quot; <a class=\&quot;12c\&quot; target=\&quot;_blank\&quot;

    href=\&quot;http://www.51aspx/CV/_&quot;+DataBinder.Eval

    (Container.DataItem,&quot;procode&quot;)+&quot;.html\&quot;>&quot;+

    DataBinder.Eval(Container.DataItem,&quot;proname&quot;)+&quot; </a>&quot;%>

    7.//修改转向

    <%# &quot; <A href=\&quot;editpushpro.aspx?id=&quot;+DataBinder.Eval

    (Container.DataItem,&quot;code&quot;)+&quot;\&quot;>&quot;+&quot;修改

    &quot;+&quot; </A>&quot;%>

    8.//弹出确定按钮

    <%# &quot; <A id=\&quot;btnDelete\&quot; onclick=\&quot;return confirm('你是否

    确定删除这条记录吗?');\&quot; href=\&quot;pushproduct.aspx?

    dl=&quot;+DataBinder.Eval(Container.DataItem,&quot;code&quot;)

    +&quot;\&quot;>&quot;+&quot;删除&quot;+&quot; </A>&quot;%>

    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, &quot;DataItem.PriceMoney&quot;,&quot;{0:F2}

    &quot;) %>

    10.//提取动态网页内容


    Uri uri = new Uri(&quot;http://www.51aspx.com/&quot;);
      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(&quot;.&quot;)

    +1).ToLower().Trim()


    12. 打开新的窗口并传送参数:
      传送参数:

    response.write(&quot;<script>window.open(’*.aspx?

    id=&quot;+this.DropDownList1.SelectIndex+&quot;&amp;id1=&quot;+...+&quot;’)<

    /script>&quot;)

    接收参数:

    string a = Request.QueryString(&quot;id&quot;);
    string b = Request.QueryString(&quot;id1&quot;);


    12.为按钮添加对话框


    Button1.Attributes.Add(&quot;onclick&quot;,&quot;return confirm(’确认?’)

    &quot;);
    button.attributes.add(&quot;onclick&quot;,&quot;if(confirm(’are you sure...?

    ’)){return true;}else{return false;}&quot;)

    13.删除表格选定记录


    int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
    string deleteCmd = &quot;Delete from Employee where emp_id = &quot; +

    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(&quot;onclick&quot;,&quot;return confirm(’

    您是否确定要删除这条信息’);&quot;);
      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(&quot;onclick&quot;,&quot;window.open(’

    Default.aspx?id=&quot; + e.Item.Cells[0].Text + &quot;’);&quot;);
    }


    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(&quot;ondblclick&quot;,

    &quot;location.href=’../ShippedGrid.aspx?id=&quot; + orderItemID + &quot;’

    &quot;);
    }

    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(&quot;ondblclick&quot;, &quot;open

    (’../ShippedGrid.aspx?id=&quot; + orderItemID + &quot;’)&quot;);
    }

    16.表格超连接列传递参数

    <asp:HyperLinkColumn Target=&quot;_blank&quot; headertext=&quot;ID号&quot;

    DataTextField=&quot;id&quot; NavigateUrl=&quot;aaa.aspx?id=’
      <%# DataBinder.Eval(Container.DataItem, &quot;数据字段1&quot;)%>’ &amp;

    name=’<%# DataBinder.Eval(Container.DataItem, &quot;数据字段2&quot;)%>’ /


    17.表格点击改变颜色


    if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType ==

    ListItemType.AlternatingItem)
    {
      e.Item.Attributes.Add

    (&quot;onclick&quot;,&quot;this.style.backgroundColor=’#99cc00’;
        this.style.color=’buttontext’;this.style.cursor=’default’;&quot;);
    }

    写在DataGrid的_ItemDataBound里


    if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType ==

    ListItemType.AlternatingItem)
    {
    e.Item.Attributes.Add

    (&quot;onmouseover&quot;,&quot;this.style.backgroundColor=’#99cc00’;
      this.style.color=’buttontext’;this.style.cursor=’default’;&quot;);
    e.Item.Attributes.Add(&quot;onmouseout&quot;,&quot;this.style.backgroundColor=

    ’’;this.style.color=’’;&quot;);
    }

    18.关于日期格式
      日期格式设定
    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"))
    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

    // in global.asax
    protected void Application_Error(Object sender, EventArgs e) {
    if (Server.GetLastError() is HttpUnhandledException)
    Server.Transfer(&quot;MyErrorPage.aspx&quot;);

    //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
    }
      Redirect会导致post-back的产生从而丢失了错误信息,所以页面导向应该直接在服

    务器端执行,这样就可以在错误处理页面得到出错信息并进行相应的处理
    20.清空Cookie

    Cookie.Expires=[DateTime];
    Response.Cookies(&quot;UserName&quot;).Expires = 0
  • 相关阅读:
    express 的安全中间件 helmet 简介
    一个设置过期时间的方案
    vscode 中的 vue 格式化
    linux 中部署不同版本 node.js 并同时使用的方案
    webpack 多页面模式配置
    1.assert
    我是一个线程(转)
    Android FragmentTransactionExtended:使Fragment以多种样式动画切换
    Android ORM应用开发框架KJFrameForAndroid使用详解
    Android Studio插件推荐(PreIOC,GsonFormat)
  • 原文地址:https://www.cnblogs.com/MySpace/p/1599747.html
Copyright © 2020-2023  润新知