How to compare if combobox item is equal with listview item or listview already contains combobox item in c# -


How to compare or check whether the item in the combobox is already present in the list view or not? Please help .... 

  if (lvCart.Items.ContainsKey (cmbdummy.SelectedItem.ToString ())) {MessageBox.Show ("Duplicate Entry!"); }

You must check with the respective SelectedValue .

Try it: 

  if (lvCart.Items.ContainsKey (cmbdummy.SelectedValue.ToString ()) {MessageBox.Show ("Duplicate Entry!"); }

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