How to choose a value in ComboBox to get its text? SelectedValue, selectedItem does not help. And how to add multiple values ​​in ComboBox without adding the same?

Answer 1, Authority 100%

// *** Getting the value when choosing in ComboBox
  // Connect an event handler - if the value is needed at the time of choice
  // Event handler when selecting a value from the list
  Private Void ComboBoxInfo_SelectedIndExchanged (Object Sender, Eventargs E)
  {
    // First method
    MessageBoxInfo.SelectedItem.Tostring ());
    // Second Method
    MessageBox.Show (ComboBoxInfo.selectedIndex] .tostring ());
  }
    // *** Adding a group of values ​​without repetition
    // Array of new values
    String [] NewValue = {
                "New value 1",
                "New value 2",
                "New value 3",
                "New value 4"
              };
    // Watch the array in the cycle
    Foreach (String Val in Newvalue)
    {
      // Check the availability in the list and if not - add
      if (comboboxinfo.findstring (VAL) == -1) ComboBoxInfo.Items.add (VAL);
    }

In WPF – almost also, only an event handler will be called a little differently and checking the element in the list will not be findstring, but Items.Indexof (VAL). For WPF – it will be like this:

private void comboboxinfo_selectionchanged (Object Sender, SelectionChangeDEVENTARGS E)
  {
    // First method
    MessageBoxInfo.SelectedItem.Tostring ());
    // Second Method
    MessageBox.Show (ComboBoxInfo.selectedIndex] .tostring ());
    // Array of new values
    String [] NewValue = {
              "New value 1",
              "New value 2",
              "New value 3",
              "New value 4"
            };
    // Watch the array in the cycle
    Foreach (String Val in Newvalue)
    {
      // Check the availability in the list and if not - add
      if (ComboBoxInfo.Items.Indexof (VAL) == -1) ComboBoxInfo.Items.add (VAL);
    }
  }

Answer 2

combobox1.selectitem.content

Answer 3

You can use combobox4.displaymember.tostring () Then you can get the element displayed in the box.