Question

I have a usercontrol that provides voting buttons (for a SO type voting model) – it contains a private int member that retains the id of the record. Outside a repeater, it functions just fine – postbacks work, and the correct id is retained in the user control.

Inside the repeater, an itemdatabound event handler associates the correct ID with the usercontrol and it works correctly – displays the correct vote count from the database. When one of the voting buttons is pressed, though, it fires a postback to the usercontrol and the control has lost the contents of its private int member so it no longer functions.

I’ve tried both re-databinding the usercontrol on postback, and binding it only on the initial load – the problem is the same both ways.

How do I get the usercontrol to retain the value of that int across postbacks?

Answer 1

Have you tried putting the value in viewstate ?

public string Id{     get     {         return this.ViewState['Value'] == null ?             0 :             (int)this.ViewState['Value'];     }     set { this.ViewState['Value'] = value; } }