asp.net - Finding Controls in an Update Panel -

I have seen some threads on it. If I have a control in an updated panel when the page is loaded, then I can easily get it from the following code:

  Label lbls = (Label) upPreview.FindControl (lbl. ID); Lbls.Text = lbl.id;   
 I can not do the following on two different buttons with two different update panels  
 button 1:  
  Labeled lbl = new label (); Lbl.Text = "Something"; Lbl.ID = "Something"; UpPreview.ContentTemplateContainer.Controls.Add (LbL);   
 button 2  
  labeled lbls = (label) upPreview.FindControl (lbl.id); Lbls.Text = lbl.id; UpForm.ContentTemplateContainer.Controls.Add (lbls);   
 Essentially I am creating a label and putting it in an update panel, then clicking on the second button I'm taking it to another update panel. Every time I try this, then it says: Price can not be zero. Parameter Name: Toddler  
 I also have ControlCollection cbb = upPreview.ContentTemplateContainer.Controls;  
 The same error has been tried. Any ideas?  
  
 
 
 Your  label lbl  is lost during partial postback  button  s you can use viewstate to protect it during a postback.  
 Add a single  label  above your page_load and instantize it to clear it.  
  Safe label Lbl = null; Secure Zero Page_load (object sender, eventAgps E) {if (! IsPostBack) // First load of page or reload {lbl = new label (); Lbl.Text = "Something"; Lbl.ID = "Something"; UpPreview.ContentTemplateContainer.Controls.Add (LbL); } See Else {// LLL which is stored in the visual position, if (seestate ["label"]! = Null) lbl = (label) viewstrate ["label"]; Else lbl = null; }}   
 Then in your buttonclick events:  
  Secure zero button 1_kill (object sender, eventAgps E) {// LLL in ViewState before proceeding Save. ViewState ["label"] = LLL; } Secure Zero Button2_Click (Object Sender, EventArgs e) {if (lbl! = Null) {// Behind the LLL with visual state, and add it to another update panel upForm.ContentTemplateContainer.Controls.Add (lbl); } And {lbl = new label (); LLL Text = "Error: The label was empty in the viewstate."; }}   
 This way you keep track of it during the post-back.