c# - ASP.NET user control property in a repeater is null after postback -

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It seems that many questions have been posted on this, but nobody cures my problem. I have a user control inside the repeater. User control has a public property with just a gator / setter. Databasing is fine on initial page load, but when selecting a filter from a dropdown menu, the first repeater binds properly, but the second repeater with user control appears to be zero for the property. So, on the actual code:

My two repeaters look like this: 

  & amp; asp: Repeater id = "rptTransactionVisual" runat = "server" OnItemDataBound = "rptTransactionVisual_ItemDataBound" & gt; & Lt; ItemTemplate & gt; & Lt;% # Eval ("TransactionAmount")% & gt;   
  ^ - I did this for a discretion investigation - it always receives a price, even if a zero value is received under the transaction, I know that he is getting data source and databbound  "runat =" server "/>  
  & lt; ASP: repeater id =" rptTransactions "runat =" Server "OnItemDataBound =" rptTransactions_ItemDataBound "OnDataBinding =" rptTransactions_DataBinding ">      & lt; / TD Gt; & lt; td & gt; & lt; ASP: literal id = "ltlTransactionAmount" runat = "server" />    gt; & lt; / td> & lt; td & gt; & lt; ap: literal id = "ltlTransactionType" runat = "server" /> Lt; / td> gt; & lt; td & gt; & lt; ap: literal id = "ltlSector" runat = "server" /> & Lt; / TD & gt; & Lt; / TR & gt; & Lt; / ItemTemplate & gt; & Lt; / ASP: Repeater & gt;   
 I am binding the value of the top repeater for another data source Repeater sin CE are the same:  
  Secure zero rptTransactions_DataBinding (Object Sender, EventArgs ) {rptTransactionVisual.DataSource = rptTransactions.DataSource; RptTransactionVisual.DataBind ();   
 This is a code relevant to user control, which works fine at the beginning, but after filtering, the transaction is always zero;  
  public transaction transaction {received; Set; } Secure Override Zero OnLoad (EventArgs e) {base.OnLoad (e); If return (transaction == blank); ....   
 Here is the filtering code:  
  Secure void ddTransactionType_SelectedIndexChanged (Object Sender, EventArgs E) {var transactions = getChildPages (). Where (P = & gt; type P. transaction == DD Transaction type. Selected value). For the list & lt; Transaction page & gt; (); } RptTransactions.DataSource = Transactions; rptTransactions.DataBind (); // Database is always for list repeater, and I think the visual repeater is databbounding with the correct data source   
 I have hit my head against the wall on it.   
 
 
 I still do not know why the original was a blank after postback, but I got it a little bit Work recycled by the working repeater ItemDataBound event.  
  if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem) {TransactionPage Transaction = (TransactionPage) e .emem.DataItem; Transaction Page Paradigm View = (Transaction Page Converter) page. Load Controls ("~ / View / Page / Partial / Transaction Page Page."); Visual.transaction = transaction; rptTransactionVisual.Controls.Add (Tomb); }

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