学步园

WebForm1.aspx
<form   id="form1"   runat="server" >
<div >
    <asp:TextBox   ID="TextBox1"   runat="server" >yaomingchen </asp:TextBox >
    <asp:Button   ID="Button1"   runat="server"   Text="Button"   PostBackUrl="WebForm2.aspx"   / >
</div >
</form >
--------------------------------------
WebForm1.aspx.cs
public   String   UserName
{
      get
      {
            return   this.TextBox1.Text;
      }
}
===================================================
WebForm2.aspx
<%@   PreviousPageType   VirtualPath="~/WebForm1.aspx"   % >
<form   id="form1"   runat="server" >
<div >
<asp:TextBoxID="TextBox1"runat="server" > </asp:TextBox >
</div >
</form >
-------------------------------------
WebForm2.aspx.cs
protected   void   Page_Load(object   sender,   EventArgs   e)
{
  if   (Page.PreviousPage   !=   null   &&   Page.PreviousPage.IsCrossPagePostBack )
  {
//通过属性取值
//this.TextBox1.Text=PreviousPage.UserName.ToString();
      TextBox   oTextBox   =   new   TextBox();
      oTextBox   =   (TextBox)PreviousPage.FindControl("TextBox1");
      this.TextBox1.Text   =   oTextBox.Text;
}
else
{
    this.Response.Redirect("WebForm1.aspx");
  }
}