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I want to put two usercontrols in tabcontrol, but when I click on a button, usercontrol will load the data < / P> 

  & lt; Button click = "button_click_1" /> & Lt; Button click = "Button_Click_2" /> & Lt; TabControl & gt; & Lt; Itemscontrol name = "tab1" & gt; & Lt; Local: UserControl1 loaded = "UserControl1_Loaded" & gt; & Lt; / Local: UserControl1 & gt; & Lt; / ItemsControl> & Lt; Itemscontrol name = "tab2" & gt; & Lt; Local: UserControl1 loaded = "UserControl2_Loaded" & gt; & Lt; / Local: UserControl1 & gt; & Lt; / ItemsControl> & Lt; / TabControl & gt;    
 
 
  private class TabSource {private string dataForTab = string.empty; Public string DataForTab {get {return dataForTab; }} Public Zero GetRealData () {dataForTab = "Actual Data"; NotifyPropertyChanged ("DataForTab"); }} Public Button_Click_2 (...) {MyTabSource.GetRealData (); }

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