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如何在ASP.NET中使用JavaScript脚本

如何在ASP.NET中使用JavaScript脚本

  一简单点的
  如要在一个按钮上增加认证脚本,可以这样
  
  <%@ Page Language="C#" %>
  
  <SCRIPT language="javascript">
  
  function getconfirm ()
  
  {
  
    if (confirm("Do you want to delete record?")==true)
  
    return true;
  
    else
  
    return false;
  
  }
  
  </SCRIPT>
  
  <script runat="server">
  
  public void Page_Load(Object sender, EventArgs E) {
  
  btnSubmit.Attributes.Add("onclick","return getconfirm ();");
  
  }
  
  void btnSubmit_Click(object sender, EventArgs e) {
  
      Message.Text = "You entered your name as: "   txtName.Text;
  
  }
  
  </script>
  
  <html>
  
  <head>
  
  </head>
  
  <body>
  
  <form runat="server">
  
    Name: <asp:Textbox id="txtName" runat="server"/>
  
  <asp:Button id="btnSubmit" onclick="btnSubmit_Click" runat="server" Text="Submit"></asp:Button><br/>
  
  <asp:Label id="Message" runat="server"/>
  
  </form>
  
  </body>
  
  </html>
  
  注意关键的地方btnSubmit.Attributes.Add("onclick","return fffkkk();");这句话,就相当于在静态页面标签上添加 “onclick = “return fffkkk();” 一样
  
  二 复杂一点的
  有的时候我们要在DataGrid的删除列上添加认证,可以这样
  
  首先建一个DataGrid,然后给她增加一个删除列
  
  <asp:DataGrid id="DataGrid1" runat="server">
  
  <Columns>
  
  <asp:TemplateColumn>
  
   <ItemTemplate>
  
  <asp:LinkButton id="cmdDel"
  
  runat="server" Text="Delete"
  
  CommandName="Delete" CausesValidation="false">
  
  </asp:LinkButton>
  
   </ItemTemplate>
  
  </asp:TemplateColumn>
  
  </Columns>
  
  </asp:DataGrid>
  
  然后在DataGrid 的ItemDataBound事件中这样写
  
  ** Sub DataGrid1_ItemDataBound
  
  (ByVal sender As Object, ByVal e As DataGridItemEventArgs)
  
  Handles DataGrid1.ItemDataBound
  
    Dim l As LinkButton
  
    If e.Item.ItemType = ListItemType.Item Or
  
    e.Item.ItemType = ListItemType.AlternatingItem Then
  
    l = CType(e.Item.Cells(0).FindControl("cmdDel"), LinkButton)
  
    l.Attributes.Add("onclick", "return getconfirm();")
  
    End If
  
  End Sub
  
  Getconfirm()函数和第一个是一样的
  
  function getconfirm()
  
  {
  
  if (confirm("Do you want to delete record?")==true)
  
  return true;
  
  else
  
  return false;
  
  }
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