跨页面提交处理

1：Default页

default.aspx:

 

 <div>
    Name:
    <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
    <br />
    <br />
    Address:
    <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
    <br />
    <br />
    City:
    <asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>
    <br />
    <br />
    &nbsp;<asp:Button ID="Button1" runat="server" Text="Original Page" />
    &nbsp;<asp:Button ID="Button2" runat="server" PostBackUrl="~/Target.aspx" Text="Target Page" />
    &nbsp;<asp:Button ID="Button3" runat="server" PostBackUrl="~/Target2.aspx" Text="Target2 Page" />
    &nbsp;<asp:Button ID="Button4" runat="server" Text="Server Transfer Target" onclick="Button4_Click" />
    <br />
    <br />
    <asp:Label ID="labName" runat="server" Text="Label"></asp:Label>
    <br />
    <asp:Label ID="labAddress" runat="server" Text="Label"></asp:Label>
    <br />
    <asp:Label ID="labCity" runat="server" Text="Label"></asp:Label>
    <br />
  </div>

 

default.aspx.cs

 

 protected void Page_Load(object sender, EventArgs e)
  {
    //If post back then save data to label controls.
    if (IsPostBack)
    {
      SaveData();
    }
  }

  /// <summary>
  /// Transfer data to label controls.
  /// </summary>
  private void SaveData()
  {
    labName.Text = TextBox1.Text;
    labAddress.Text = TextBox2.Text;
    labCity.Text = TextBox3.Text;
  }

  /// <summary>
  /// Public property for name textbox.
  /// </summary>
  public string Name
  {
    get { return TextBox1.Text; }
  }

  /// <summary>
  /// Public property for address textbox.
  /// </summary>
  public string Address
  {
    get { return TextBox2.Text; }
  }

  /// <summary>
  /// Public property for city textbox.
  /// </summary>
  public string City
  {
    get { return TextBox3.Text; }
  }

  /// <summary>
  /// Actions when Transfer button is clicked.
  /// </summary>
  protected void Button4_Click(object sender, EventArgs e)
  {
    //Transfer postback processing to the Transfer.aspx page instead of Default.aspx page.
    Server.Transfer("~/Transfer.aspx");
  }

 

Target.aspx.cs

 

 protected void Page_Load(object sender, EventArgs e)
  {
    //Use IsCrossPagePostBack to determine if a postback occurred from the source page.
    if (this.PreviousPage.IsCrossPagePostBack)
    {
      SaveData();
    }
  }

  /// <summary>
  /// Transfer data to label controls.
  /// </summary>
  private void SaveData()
  {
    //Get data using FindControl() to locate reference to the control on source page (Default.aspx).
    TextBox text1 = this.PreviousPage.FindControl("TextBox1") as TextBox;
    labName.Text = text1.Text;
    TextBox text2 = this.PreviousPage.FindControl("TextBox2") as TextBox;
    labAddress.Text = text2.Text;
    TextBox text3 = this.PreviousPage.FindControl("TextBox3") as TextBox;
    labCity.Text = text3.Text;
  }

 

Target2.aspx.cs

 

 

Transfer.aspx.cs

 protected void Page_Load(object sender, EventArgs e)
  {
    //Transfer from Default.aspx
    SaveData();
  }

  /// <summary>
  /// Transfer data to label controls.
  /// </summary>
  private void SaveData()
  {
    //Get data using FindControl() to locate reference to the control on source page (Default.aspx).
    TextBox text1 = this.PreviousPage.FindControl("TextBox1") as TextBox;
    labName.Text = text1.Text;
    TextBox text2 = this.PreviousPage.FindControl("TextBox2") as TextBox;
    labAddress.Text = text2.Text;
    TextBox text3 = this.PreviousPage.FindControl("TextBox3") as TextBox;
    labCity.Text = text3.Text;
  }

 

来自：http://www.asp.net/general/videos/how-do-i-implement-a-cross-page-postback-in-aspnet