允许回发特定面板HTML，ASP.NET [英] Allow Postback for a Specific Panel HTML, ASP.NET
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问题描述
我正在尝试上传一些文件并作为电子邮件发送。我有两个更新面板，因为当我单击菜单项时，它会自动刷新整个页面，因此不会附加任何文件。如何阻止它？
我希望我的页面保存文件，直到我点击Button3。然后它可以执行发送电子邮件的功能。
附上我的代码
I am trying to upload some files and send as an email. I have two update panels because, when I click the Menu item, it automatically refreshes the whole page and hence no file will be attached. How do I stop it?
I want my page to hold the files until I click Button3. Then it can perform the function of sending the email.
Attached is my code
<%@ Page Title="Home Page" Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="EDMSProject._Default" %>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title></title>
<style type="text/css">
.auto-style2 {
width: 186px;
}
</style>
</head>
<body>
<form id="form1" runat="server">
<asp:Label ID="Label1" runat="server" Text="Label">
<br />
<br />
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Check DocuTray " />
<asp:ScriptManager ID="ScriptManager1" runat="server" />
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<contenttemplate>
<asp:FileUpload ID="FileUpload1" runat="server" AllowMultiple="True" />
<br />
</contenttemplate>
<triggers>
<asp:PostBackTrigger ControlID = "Button3"/>
</triggers>
<asp:UpdatePanel ID="UpdatePanel2" runat="server">
<contenttemplate>
<asp:Button ID="Button2" runat="server" Text="Check History/Status" />
<asp:Menu ID="Menu1" runat="server" OnMenuItemClick="Menu1_MenuItemClick" Orientation="Horizontal" style="margin-left: 41px">
<items>
<asp:MenuItem Text="Action" Value="Action">
<asp:MenuItem Text="Forward" Value="Forward">
<asp:MenuItem Text="Save" Value="Save">
<asp:MenuItem Text="Close Ticket" Value="Close Ticket">
</items>
<staticitemtemplate>
<%# Eval("Text") %>
</staticitemtemplate>
<asp:Label ID="Label2" runat="server" Text="Department">
<asp:DropDownList ID="DropDownList1" runat="server" DataTextField="Department" DataValueField="Department" OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged">
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:EDMSConnectionString %>" SelectCommand="SELECT * FROM [Employee]">
<br />
<asp:Label ID="Label3" runat="server" Text="Client">
<asp:DropDownList ID="DropDownList2" runat="server">
<asp:ListItem>Pavis
<asp:ListItem>Dove Associates
<br />
<asp:Label ID="Label4" runat="server" Text="Recipient">
<asp:DropDownList ID="DropDownList3" runat="server">
<asp:ListBox ID="ListBox1" runat="server" SelectionMode="Multiple">
<br />
<asp:Label ID="Label6" runat="server" Text="Subject">
<asp:TextBox ID="TextBox2" runat="server" Width="182px">
<br />
<asp:Label ID="Label5" runat="server" Text="Message">
<asp:TextBox ID="TextBox1" runat="server" Height="109px" Width="265px">
<br />
<asp:Button ID="Button3" runat="server" Text="Button" OnClick="Button3_Click" style="margin-left: 260px" />
</contenttemplate>
</form>
</body>
</html>
部门
Department
推荐答案
ConnectionStrings：EDMSConnectionString ％> SelectCommand = SELECT * FROM [Employee] >
< br / >
< asp：标签 ID = Label3 runat = server 文字 = 客户端 >
< asp：DropDownList ID = DropDownList2 runat = server >
< < span class =code-leadattribute> asp：ListItem > Pavis
< asp：ListItem > ; Dove Associates
< br / >
< asp：标签 ID = Label4 runat = server 文字 = 收件人 >
< asp：DropDownList ID = DropDownList3 runat = 服务器 >
< asp：ListBox ID = ListBox1 runat < span class =code-keyword> = server SelectionMode = Multiple >
< br / >
< asp：Label ID = Label6 runat = server 文本 = 主题 >
< asp：TextBox ID = TextBox2 runat = server 宽度 = 182px >
< br / >
< asp：Label ID = Label5 runat = server 文本 = 消息 >
< asp：TextBox ID = TextBox1 runat = server\" Height=\"109px\" Width=\"265px\">
<br />
<asp:Button ID=\"Button3\" runat=\"server\" Text=\"Button\" OnClick=\"Button3_Click\" style=\"margin-left: 260px\" />
</contenttemplate>
</form>
</body>
</html>
ConnectionStrings:EDMSConnectionString %>" SelectCommand="SELECT * FROM [Employee]"> <br /> <asp:Label ID="Label3" runat="server" Text="Client"> <asp:DropDownList ID="DropDownList2" runat="server"> <asp:ListItem>Pavis <asp:ListItem>Dove Associates <br /> <asp:Label ID="Label4" runat="server" Text="Recipient"> <asp:DropDownList ID="DropDownList3" runat="server"> <asp:ListBox ID="ListBox1" runat="server" SelectionMode="Multiple"> <br /> <asp:Label ID="Label6" runat="server" Text="Subject"> <asp:TextBox ID="TextBox2" runat="server" Width="182px"> <br /> <asp:Label ID="Label5" runat="server" Text="Message"> <asp:TextBox ID="TextBox1" runat="server" Height="109px" Width="265px"> <br /> <asp:Button ID="Button3" runat="server" Text="Button" OnClick="Button3_Click" style="margin-left: 260px" /> </contenttemplate> </form> </body> </html>
Department
Department
See your button3 need to be placed inside updatepanel1. If you are using for fileupload
See your button3 need to be placed inside updatepanel1. If you are using for fileupload
<asp:updatepanel id="UpdatePanel1" runat="server" xmlns:asp="#unknown">
<contenttemplate>
<asp:fileupload id="FileUpload1" runat="server" allowmultiple="True" />
<br />
<asp:button id="Button3" runat="server" text="Button" onclick="Button3_Click" style="margin-left: 260px" />
</contenttemplate>
<triggers>
<asp:postbacktrigger controlid="Button3" />
</triggers>
</asp:updatepanel>
Or you can use whole of the page in a single updatepanel
for more information see this article
Using-FileUpload-Control-inside-ASP.Net-AJAX-UpdatePanel-Control.aspx[^]
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