globals

Question

I have this function in my globals file: public static void getList(ComboBox cboChoose) { Globals.arr = new ArrayList(); arr.Add(cboChoose.SelectedItem.ToString()); } and the following code behind the button that loads the values in the array each time I click on it: Globals.getList(cboChoose); When I load a form with a listview control I want to get the values in the array to load in the listview I wrote the following code onLoad but I get only one msgbox with 'System.Data.DataRowView'(even if i click on the add button several times only 1 msgbox is dispayed) but the listview remains empty. MessageBox.Show(Globals.arr[0].ToString()); for(int i=0;i<Globals.arr.Count;i++) { ListViewItem lvItem = new ListViewItem(); lvItem.Text = Globals.arr[0].ToString(); lv1.Items.Add(lvItem); // lv1 is the name of a listview control } Please help. Thks in advance.

rmtielman · Answer

Hey I managed to work it out =) Thks for all the help.

rmtielman · Answer

Can anyone pls tell me how you load the values from an array to a listview control. I think that's where the problem is. Coz I get the values in my messagebox they just dont get displyed in the listview This is how I wrote it: for(int i=0;i<Globals.arr.Count;i++) { ListViewItem lvItem = new ListViewItem(); lvItem.Text = Globals.arr[i].ToString(); lv1.Items.Add(lvItem).ToString(); }

rmtielman · Answer

Thks JTeeuwen The code u suggested is working but I still dont get any value when I call the array to load the listview I wrote this onLoad: for(int i=0;i<Globals.arr.Count;i++) { ListViewItem lvItem = new ListViewItem(); lvItem.Text = Globals.arr[i].ToString(); lv1.Items.Add(lvItem); } and this is the getList function for the global array: public static void getList(ComboBox cboChoose) { arr.Add(cboChoose.SelectedText.ToString()); }

jimteeuwen · Answer

[quote] public static void getList(ComboBox cboChoose) { Globals.arr = new ArrayList(); arr.Add(cboChoose.SelectedItem.ToString()); } [/quote] Everytime ur adding a value to the arraylist ur creating a new arraylist. Effectively deleting all the values allready in there. Remove the line 'Globals.arr = new ArrayList(); ' and try again. Don't forget to create a new instance of the arraylist before calling the function tho. internal sealed class Global { private static ArrayList arr; .... static Global() { arr = new ArrayList(); } public static void getList(ComboBox cboChoose) { arr.Add(cboChoose.SelectedItem.ToString()); } ... }