c# pass listview items from form to listview in another form

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I have form1 and form 2 .. and listview1 on form1 , listview2 on form2 when listview1 in form1 and listview2 in form2 and both listview contain : itemcode - itemcount . and button1 in form2

on form2 if user click button1 values in listview2 on form2 be populated in listview1 on form1 and form2 close how to do such action in code thanks

Posted 17-Oct-15 15:47pm

Ahmed Zoeil

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BillWoodruff 17-Oct-15 22:39pm

If this is Windows Forms, what is the main form in this application: form1 ? Does form1 create form2 ?

Once the items in the ComboBox on form2 replace the ComboBox items on form1, do you want the two ComboBoxes to be synchronized where they show the same selected item ?

2 solutions

Solution 1

Pass the listview1 from Form1 as a parameter to the Form2. Then access it in Form2.
Something like this,

C#

// on Form1 any button click or other event to open the form2
new Form2(listView1).Show();

// on Form2 
public Form2(ListView lv)
{
    InitializeComponents();
    listView2 =lv;
}

-KR

Posted 17-Oct-15 20:12pm

Krunal Rohit

Comments

sreeyush sudhakaran 18-Oct-15 2:50am

Will this work if Form1 close itself inside it's button click

Krunal Rohit 18-Oct-15 4:42am

Didn't get you.

-KR

sreeyush sudhakaran 18-Oct-15 6:45am

It seems your idea doesnot work if this.close() is called after new Form2(listView1).Show(); , I have tried but not worked for me

Krunal Rohit 18-Oct-15 13:27pm

Don't close Form1. Hide it.

-KR

sreeyush sudhakaran 19-Oct-15 1:05am

For hiding I think there is no need to do like above just create a Form2 object,equate list and call it...Am I right?

BillWoodruff 18-Oct-15 3:44am

My vote of #1. This is a very bad idea, and we don't know enough to really answer the OP's question(s) with specific code.

Krunal Rohit 18-Oct-15 3:56am

He already mentioned what he wants.

-KR

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sreeyush sudhakaran · Accepted Answer · 2015-10-17T20:38:00

Modify your Program.cs as below

C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Forms;

namespace SampleApplicationLV
{
    static class Program
    {
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Form1 Form1Obj = new Form1();
            Application.Run(new Form2(ref Form1Obj));

            Application.Run(Form1Obj);
        }
    }
}

Then Make the Modifier property of Listview1 of Form1 as Public from private

Form2.cs sample code

C#

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace SampleApplicationLV
{
    
    public partial class Form2 : Form
    {
        Form1 objForm1;
        public Form2(ref Form1 Form1Obj)
        {
            InitializeComponent();

            objForm1 = new Form1();

            objForm1 = Form1Obj;
        }

       

        private void Form2_Load(object sender, EventArgs e)
        {
            listView1.View = View.Details;

            listView1.Columns.Add("Item Code");
            listView1.Columns.Add("Item Count");

            for (int i = 1; i <= 5; i++)
            {
                string[] row = { "Item"+i.ToString(), i.ToString() };
                var listViewItem = new ListViewItem(row);
                listView1.Items.Add(listViewItem);              
            }
        }

        private void button1_Click(object sender, EventArgs e)
        {
            //Make listview1 of Form1 Modifiers from Private to Public in Properties
            objForm1.listView1.View = View.Details;
            objForm1.listView1.Columns.Add("Item Code");
            objForm1.listView1.Columns.Add("Item Count");

            foreach (ListViewItem item in listView1.Items)
            {
                objForm1.listView1.Items.Add((ListViewItem)item.Clone());
            }           

            this.Close();
        }
    }
}