UltraWebTab - Load on Demand Sample?

Hi Travis,

I wrote a small application for you. It stores "view-state" values of fields which should persist in MyTabItems array, fills value pairs UniqueID-Value from client and updates child controls in tabs from latest values stored in "view-state". You may copy paste those codes in any web site and check how it runs.

aspx:

<ig:WebTab ID="WebTab1" runat="server" Width="300px" Height="300px">
   <Tabs>
    <ig:ContentTabItem runat="server" Text="Tab 1">
    <Template>
     <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
     <asp:TextBox ID="TextBox11" runat="server"></asp:TextBox>
     <asp:Button ID="Button1" runat="server" Text="Button" />
     </Template>
    </ig:ContentTabItem>
    <ig:ContentTabItem runat="server" Text="Tab 2">
    <Template>
     <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
     <asp:Button ID="Button2" runat="server" Text="Button" />
     </Template>
    </ig:ContentTabItem>
   </Tabs>
   <PostBackOptions EnableLoadOnDemand="True" EnableLoadOnDemandViewState="False" />
</ig:WebTab>

aspx.cs:

protected void Page_Load(object sender, EventArgs e)
{
  ArrayList list = Session["MyTabItems"] as ArrayList;
  if (list == null)
   Session["MyTabItems"] = list = new ArrayList();
  int selIndex = this.WebTab1.SelectedIndex;
  // fill view-state-list by ids of child controls which should persist
  if (selIndex == 0 && Session["Tab1"] == null)
  {
   list.Add(new MyViewState(this.TextBox1.UniqueID));
   list.Add(new MyViewState(this.TextBox11.UniqueID));
   Session["Tab1"] = true;
  }
  if (selIndex == 1 && Session["Tab2"] == null)
  {
   list.Add(new MyViewState(this.TextBox2.UniqueID));
   Session["Tab2"] = true;
  }
  // update list with latest values and update Controls by latest values
  foreach(MyViewState item in list)
  {
   string id = item.ID;
   // get value of Control modified by client
   string val = this.Request.Form[id];
   // fill view-state value of item from client
   if (val != null)
    item.Value = val;
   // get latest value for item
   val = item.Value as string;
   if (val == null)
    continue;
   // find Control which is linked to view-state-item and update its property
   if (selIndex == 0)
   {
    if (id == this.TextBox1.UniqueID)
     this.TextBox1.Text = val;
    else if (id == this.TextBox11.UniqueID)
     this.TextBox11.Text = val;
   }
   if (selIndex == 1)
   {
    if (id == this.TextBox2.UniqueID)
     this.TextBox2.Text = val;
   }
  }
}
internal class MyViewState
{
  internal string ID;
  internal object Value;
  internal MyViewState(string id)
  {
   this.ID = id;
  }
}