в 15:30, 26 мая 2010

2010-05-26T15:30:57Z

Admin: 1 версия

2010-05-26T12:00:00Z

1 версия

Новая страница

== Get previous page (C#)==



<source lang="csharp">
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="CrossPage1" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>CrossPage1</title>
</head>
<body>
<form id="form1" runat="server" >
<div>
First Name:
<asp:TextBox ID="txtFirstName" runat="server"></asp:TextBox>
<br />
Last Name:
<asp:TextBox ID="txtLastName" runat="server"></asp:TextBox>
<br />
<br />
<asp:Button runat="server" ID="cmdPost"
PostBackUrl="NextPage.aspx" Text="Cross-Page Postback" /><br />
<asp:Button runat="server" ID="cmdTransfer" Text="Manual Transfer" OnClick="cmdTransfer_Click" Visible="False" />
</div>
</form>
</body>
</html>
File: Default.aspx.cs
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
public partial class CrossPage1 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (Request.QueryString["err"] != null)
Page.Validate();
}

protected void cmdTransfer_Click(object sender, EventArgs e)
{
Server.Transfer("NextPage.aspx", true);
}
public string FullName
{
get { return txtFirstName.Text + " " + txtLastName.Text; }
}
}

File: NextPage.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="NextPage.aspx.cs" Inherits="CrossPage2" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server" >
<div>
<asp:Label ID="lblInfo" runat="server"></asp:Label></div>
</form>
</body>
</html>

File: NextPage.aspx.cs

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
public partial class CrossPage2 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (PreviousPage != null)
{
lblInfo.Text = "You came from a page titled " +
PreviousPage.Title + "<br />";
CrossPage1 prevPage = PreviousPage as CrossPage1;
if (prevPage != null)
{
lblInfo.Text += "You typed in this: " + prevPage.FullName +
"<br />";
}
}
}
}</source>

== Performing Cross-Page Posts==



<source lang="csharp">
<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>Button Search</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Label
id="lblSearch"
Text="Search:"
Runat="server" />
<asp:TextBox
id="txtSearch"
Runat="server" />
<asp:Button
id="btnSearch"
Text="Go!"
PostBackUrl="NextPage.aspx"
Runat="server" />
</div>
</form>
</body>
</html>
File: NextPage.aspx
<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
void Page_Load()
{
if (PreviousPage != null)
{
TextBox txtSearch = (TextBox)PreviousPage.FindControl("txtSearch");
lblSearch.Text = String.Format("Search For: {0}", txtSearch.Text);
}
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>Button Search Results</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Label
id="lblSearch"
Runat="server" />
</div>
</form>
</body>
</html></source>

== Use PreviousPage.FindControl to get a control in Previous Page (VB.net)==



<source lang="csharp">
<%@ Page Language="VB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>Button Search</title>
</head>
<body>
<form id="form1" runat="server">
<div>

<asp:Label
id="lblSearch"
Text="Search:"
Runat="server" />
<asp:TextBox
id="txtSearch"
Runat="server" />
<asp:Button
id="btnSearch"
Text="Go!"
PostBackUrl="NextPage.aspx"
Runat="server" />
</div>
</form>
</body>
</html>
File: NextPage.aspx

<%@ Page Language="VB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
Sub Page_Load()
If Not IsNothing(PreviousPage) Then
Dim txtSearch As TextBox = CType(PreviousPage.FindControl("txtSearch"), TextBox)
lblSearch.Text = String.Format("Search For: {0}", txtSearch.Text)
End If
End Sub

</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>Button Search Results</title>
</head>
<body>
<form id="form1" runat="server">
<div>

<asp:Label
id="lblSearch"
Runat="server" />

</div>
</form>
</body>
</html></source>

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ASP.NET Tutorial/Page Lifecycle/previous page - История изменений

в 15:30, 26 мая 2010

Admin: 1 версия