How to remove all ListBox items

Question

I created two RadioButton  Weight and Height   I will do switch between the two categories  But the they share the same ListBox Controllers  listBox1 and listBox2    Is there any good method to clear all the ListBox items simpler  I didn t find the removeAll   for ListBox  I don t like my complex multi-lines style which I posted here   private void Weight Click object sender  RoutedEventArgs e                   switch between the radioButton  Weith  and  Height             Clear all the items first         listBox1 Items Remove  foot             listBox1 Items Remove  inch            listBox1 Items Remove  meter            listBox2 Items Remove  foot            listBox2 Items Remove  inch            listBox2 Items Remove  meter                Add source units items for listBox1         listBox1 Items Add  kilogram            listBox1 Items Add  pound                Add target units items for listBox2         listBox2 Items Add  kilogram            listBox2 Items Add  pound               private void Height Click object sender  RoutedEventArgs e                   switch between the radioButton  Weith  and  Height             Clear all the items first         listBox1 Items Remove  kilogram            listBox1 Items Remove  pound            listBox2 Items Remove  kilogram            listBox2 Items Remove  pound                Add source units items for listBox1         listBox1 Items Add  foot            listBox1 Items Add  inch            listBox1 Items Add  meter                Add target units items for listBox2         listBox2 Items Add  foot            listBox2 Items Add  inch            listBox2 Items Add  meter

User · Answer

while  listBox1 Items Count  gt  0        listBox1 Items Remove 0

User · Answer

I made on this way  and work properly to me   if  listview1 Items Count  gt  0                        for  int a   listview1 Items Count -1  a  gt  0   a--                                listview1 Items RemoveAt a                                 listview1 Refresh                 Explaining  using  Clear    erases only  the items  do not  removes then from object  using RemoveAt   to removing an item of beginning position  just realocate the others  if u remove item 0   item 1  turns into  0  triggering a new internal event    so removing from the ending no affect de others position   its a Stack behavior  this way we can Stack over all items  reseting the object

User · Answer

isn t the same as the Winform and Webform way   listBox1 Items Clear

User · Answer

I think it would be better to actually bind your listBoxes to a datasource  since it looks like you are adding the same elements to each listbox  A simple example would be something like this       private List lt String gt   weight   new List lt string gt       kilogram    pound         private List lt String gt   height   new List lt string gt       foot    inch    meter          public Window1                             InitializeComponent                       private void Weight Click object sender  RoutedEventArgs e                listBox1 ItemsSource    weight          listBox2 ItemsSource    weight             private void Height Click object sender  RoutedEventArgs e                listBox1 ItemsSource    height          listBox2 ItemsSource    height

User · Answer

You should be able to use the Clear   method

User · Answer

Write the following code in the  cs file   ListBox Items Clear

User · Answer

VB ListBox2 DataSource   Nothing C  ListBox2 DataSource   null

[c#] How to remove all ListBox items?

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