CODEWITHSUNDEEP
c#winformslistbox
himanshu mishra
himanshu mishra

Reputation: 31

How to move multiple selected item from one listbox to another listbox?

I have two listboxes named listBox1 and listBox2 with 4 items (strings) in both listboxes. I can select multiple items from both listboxes. I have also two buttons.

On clicking button1, I have to move multiple selected items from listBox1 to listBox2. Similarly, on clicking button2, I have to move multiple selected items from listBox2 to listBox1.

How can it be done?

Upvotes: 3

Views: 22683

Answers (7)

NAEEM
NAEEM

Reputation: 1

    private void Btn_Right_Click(object sender, EventArgs e)
    {

        while(ListBox_Left.SelectedItems.Count!=0)
        {
            ListBox_Right.Items.Add(ListBox_Left.SelectedItem);
            ListBox_Left.Items.Remove(ListBox_Left.SelectedItem);
        }
    }

    private void Btn_Left_Click(object sender, EventArgs e)
    {
        while (ListBox_Right.SelectedItems.Count != 0)
        {
            ListBox_Left.Items.Add(ListBox_Right.SelectedItem);
            ListBox_Right.Items.Remove(ListBox_Right.SelectedItem);
        }
    }

Upvotes: 0

Thanh Le Ngoc
Thanh Le Ngoc

Reputation: 1

private void move(ListBox source, ListBox destination) {
    for (int i = 0; i <= source.Items.Count-1; i++)
        {
           destination.Items.Add(source.Items[i]);
        }
    source.Items.Clear(); 
}

Upvotes: 0

S.Sathish Kumar
S.Sathish Kumar

Reputation: 21

private void button1_Click(object sender, EventArgs e)
  {
       foreach (var item in listBox1.SelectedItems)
        {
            listBox2.Items.Add(item);
        }
        for (int s = 0; s < listBox1.Items.Count; s++)
        {
            for (int t = 0; t < listBox2.Items.Count; t++)
            {
                if (listBox1.Items[s].ToString().Equals(listBox2.Items[t].ToString()))
                {
                    listBox1.Items.RemoveAt(s);
                }
            }
        }
  }

Upvotes: 1

thinzar
thinzar

Reputation: 1550

According to this question How to remove multiple selected items in ListBox? 

private void button1_Click(object sender, EventArgs e) 
{ 
    for(int x = listBox1.SelectedIndices.Count - 1; x>= 0; x--)
    { 
        int idx = listBox1.SelectedIndices[x];
        listBox2.Items.Add(listBox1.Items[idx]); 
        listBox1.Items.RemoveAt(idx);
    } 
}

You can do like this.

Upvotes: 2

Ta01
Ta01

Reputation: 31610

private void MoveListBoxItems(ListBox source, ListBox destination)
{        
    ListBox.SelectedObjectCollection sourceItems = source.SelectedItems;
    foreach (var item in sourceItems)
    {
        destination.Items.Add(item);
    }
    while (source.SelectedItems.Count > 0)
    {
        source.Items.Remove(source.SelectedItems[0]);
    }
}

Use: On the click event of your move from 1 to 2 button:

MoveListBoxItems(listBox1, listBox2);

To move them back:

MoveListBoxItems(listBox2, listBox1);

Upvotes: 5

Jason Meckley
Jason Meckley

Reputation: 7591

private void Move(ListControl source, ListControl destination)
{
       List<ListItem> remove = new List<ListItem>();
       foreach(var item in source.Items)
       {
            if(item.Selected == false) continue;
            destination.Items.Add(item);
            remove.Add(item);
       }
       foreach(var item in remove)
       {
            source.Items.Remove(item);
       }
}

then you can call it like this

Move(listbox1, listbox2);
//or
Move(listbox2, listbox1);

Upvotes: 2

ChrisWue
ChrisWue

Reputation: 19020

A ListBox has a SelectedItems property you can use to copy the items in the click event handler of the button. Like this:

foreach(var item in listBox1.SelectedItems)
{
    listBox2.Items.Add(item);
}

Upvotes: 2

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