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ASP.Net/Page/Postback - История изменений
2026-04-30T01:10:58Z
История изменений этой страницы в вики
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в 15:30, 26 мая 2010
2010-05-26T15:30:47Z
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Admin: 1 версия
2010-05-26T11:53:34Z
<p>1 версия</p>
<p><b>Новая страница</b></p><div>==Demonstration of IsPostBack property (VB.net)==<br />
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<!-- start source code --><br />
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<source lang="csharp"><br />
<% @Page Language="vb" %><br />
<html><br />
<head><br />
<title>IsPostBack Demonstration</title><br />
<script runat="server" ><br />
Sub Page_Load(Sender As Object, e As EventArgs)<br />
If Not IsPostBack Then<br />
lblMessage.Text = "Before PostBack" <br />
Else<br />
lblMessage.Text = "Posted Back" <br />
End If<br />
End Sub<br />
</script><br />
</head><br />
<body> <br />
<h1>Demonstration of IsPostBack property</h1><br />
<form id="frmPostBack" runat="server"><br />
<asp:label id="lblMessage" runat="server"/><br />
<asp:Button type="Submit" text="Post Back" runat="server"/><br />
</form><br />
</body><br />
</html><br />
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</source><br />
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==Page IsPostBack Demo (C#)==<br />
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<!-- start source code --><br />
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<source lang="csharp"><br />
<%@ Page Language="C#" Debug="true" %><br />
<script runat="server"><br />
void Page_Load(){<br />
if (Page.IsPostBack){<br />
string[] choice = new string[3];<br />
choice[0] = "1";<br />
choice[1] = "2";<br />
choice[2] = "3";<br />
lblShipper.Text = "Shipper ID for " + txtShipNum.Text + " is " + Array.IndexOf(choice, txtShipNum.Text);<br />
lblShipper.Visible = true;<br />
}<br />
}<br />
</script><br />
<html><br />
<head><br />
<title>Array Example</title><br />
</head><br />
<body><br />
<form runat="server"><br />
Please enter your shipper name. <br />
(should be "1" or "2" or "3") <br />
<br><asp:TextBox id="txtShipNum" runat="server" width="300px"></asp:TextBox><br />
<br /><br />
Press button to find the Shipper ID number<br />
<asp:Button id="Button1" runat="server" Text="Submit"></asp:Button><br />
<br /><br />
<asp:Label id="lblShipper" runat="server"></asp:Label><br />
</form><br />
</body><br />
</html><br />
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</source><br />
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==Page.IsPostBack Property (VB.net)==<br />
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<!-- start source code --><br />
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<source lang="csharp"><br />
<%@ Page Language="vb" %><br />
<html><br />
<head><br />
<title>IsPostBack property example</title><br />
<script runat="server"><br />
Sub Page_Load()<br />
If Page.IsPostBack Then<br />
Message.Text = "PostBack"<br />
Else<br />
Message.Text = "Non-PostBack"<br />
End If<br />
End Sub<br />
</script><br />
</head><br />
<body><br />
<form runat="server"><br />
<asp:button id="post" Text="Post page" runat="server"/><br />
<asp:label id="Message" runat="server"/><br />
</form><br />
</body><br />
</html><br />
<br />
</source></div>
Admin