Display selected row data to the text box of other window.

Main Form Code

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace SandBox
{
public partial class MyMainForm : Form
{
Child frmProcesses = null;
public MyMainForm()
{
InitializeComponent();
}
private void btnBrowse_Click(object sender, EventArgs e)
{
// Method: btnBrowse_Click
// Return: None
// Loads a child support form.
frmProcesses = new Child();
// Pass a reference of main form to the child
frmProcesses.MainForm = this;
frmProcesses.Show();
}
public void UpdateFromChildForm(ProcessEventArg e)
{
// Method: UdpateFromChildForm
// Return: None
// Receives a notification from child support form
// Display notification to a text box
SystemProcess sp = e.SystemProcess;
string incomingMessage = "Process ID: " + sp.ProcessID.ToString() + " / Process Name: " + sp.ProcessName;
txtProcess.Text = string.Empty;
txtProcess.Text = incomingMessage;
}
}
}

Child Form Code

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Diagnostics;
namespace SandBox
{
public partial class Child : Form
{
// public delegate
public delegate void RowSelected(ProcessEventArg e);
// Support Variables
MyMainForm frmMain = null; // Main Form
private List m_systemProcesses = null; // A List of processes on my laptop (or your laptop)
RowSelected rs = null; // delegate object variable
// Form class constructor
public Child()
{
InitializeComponent();
// A list for all process running on my laptop (or your laptop)
m_systemProcesses = new List();
// Get the processes running on my laptop (or your laptop)
PopulateProcessGrid();
}
// write only property referencing main form
public MyMainForm MainForm
{
set { frmMain = value; }
}
private void PopulateProcessGrid()
{
// Method: PopulateProcessGrid()
// Return: None
// Requirements: System.Diagnostics
// Acquires running processes on my laptop (or your laptop), populate the list, uses the list as a datasource and
// populate the grid with the list (or datasource)
// get the current process on my laptop (or your laptop)
Process[] myRunningProcesses = Process.GetProcesses();
// populate the list (or data source) with the processes
foreach(Process p in myRunningProcesses)
{
SystemProcess sp = new SystemProcess(p.Id, p.ProcessName);
m_systemProcesses.Add(sp);
}
// set the grid's datasource to the list (which is the actual datasource)
dgvProcesses.DataSource = m_systemProcesses;
}
private void dgvProcesses_SelectionChanged(object sender, EventArgs e)
{
// Method: dgvProcesses_SelectionChanged
// Return: None
// One row is selected and something magical happens
// get a collection of selected rows.
// MultiSelect set to false. Requirement per the OP "Display a selected row data".
// row is singular not plural therefore only one row, no exception
DataGridViewSelectedRowCollection rows = dgvProcesses.SelectedRows;
// if there are no rows don't bother going any further
// otherwise get the one and only row on index 0
if(rows.Count>0)
{
SystemProcess sp = new SystemProcess((int)rows[0].Cells["ProcessID"].Value, (string)rows[0].Cells["ProcessName"].Value);
// Create the ProcessEventArg
ProcessEventArg pea = new ProcessEventArg(sp);
// use the delegate and pass the information back the main form
rs(pea);
}
}
private void Child_Load(object sender, EventArgs e)
{
// wire up the delegate to Main Form's UpdateFromChildForm(ProcessEventArg e)
rs = new RowSelected(frmMain.UpdateFromChildForm);
}
}
}

System Process Class

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace SandBox
{
public class SystemProcess
{
private int m_processID = 0;
private string m_processName = string.Empty;
public SystemProcess(int processID, string processName)
{
m_processID = processID;
m_processName = processName;
}
public int ProcessID
{
get { return m_processID; }
}
public string ProcessName
{
get { return m_processName; }
}
}
}

ProcessEventArg Class

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace SandBox
{
public class ProcessEventArg
{
private SystemProcess m_systemProcess = null;
public ProcessEventArg(SystemProcess systemProcess)
{
m_systemProcess = systemProcess;
}
public SystemProcess SystemProcess
{
get { return m_systemProcess; }
}
}
}

Glad I could help. Have a great day.

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

James Axsom8y ago
Accepted answer
Main Form Code
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace SandBox
{
    public partial class MyMainForm : Form
    {
        Child frmProcesses = null;

        public MyMainForm()
        {
            InitializeComponent();
        }


        private void btnBrowse_Click(object sender, EventArgs e)
        {
            // Method: btnBrowse_Click
            // Return: None

            // Loads a child support form.
            frmProcesses = new Child();
            // Pass a reference of main form to the child
            frmProcesses.MainForm = this;
            frmProcesses.Show();
        }

        public void UpdateFromChildForm(ProcessEventArg e)
        {
            // Method: UdpateFromChildForm
            // Return: None
            // Receives a notification from child support form
            // Display notification to a text box

            SystemProcess sp = e.SystemProcess;
            string incomingMessage = "Process ID: " + sp.ProcessID.ToString() + " / Process Name: " + sp.ProcessName;
            txtProcess.Text = string.Empty;
            txtProcess.Text = incomingMessage;
        }
    }
}
Child Form Code
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Diagnostics;

namespace SandBox
{
    public partial class Child : Form
    {
        // public delegate
        public delegate void RowSelected(ProcessEventArg e);

        // Support Variables
        MyMainForm frmMain = null;                                  // Main Form
        private List m_systemProcesses = null;       // A List of processes on my laptop (or your laptop)
        RowSelected rs = null;                                      // delegate object variable

        // Form class constructor
        public Child()
        {
            InitializeComponent();
            // A list for all process running on my laptop (or your laptop)
            m_systemProcesses = new List();
            // Get the processes running on my laptop (or your laptop)
            PopulateProcessGrid();
        }

        // write only property referencing main form
        public MyMainForm MainForm
        {
            set { frmMain = value; }
        }


        private void PopulateProcessGrid()
        {
            // Method: PopulateProcessGrid()
            // Return: None
            // Requirements: System.Diagnostics
            // Acquires running processes on my laptop (or your laptop), populate the list, uses the list as a datasource and
            // populate the grid with the list (or datasource)

            // get the current process on my laptop (or your laptop)
            Process[] myRunningProcesses = Process.GetProcesses();

            // populate the list (or data source) with the processes
            foreach(Process p in myRunningProcesses)
            {
                SystemProcess sp = new SystemProcess(p.Id, p.ProcessName);
                m_systemProcesses.Add(sp);
            }

            // set the grid's datasource to the list (which is the actual datasource)
            dgvProcesses.DataSource = m_systemProcesses;

        }

        private void dgvProcesses_SelectionChanged(object sender, EventArgs e)
        {
            // Method: dgvProcesses_SelectionChanged
            // Return: None
            // One row is selected and something magical happens

            // get a collection of selected rows.
            // MultiSelect set to false. Requirement per the OP "Display a selected row data".
            // row is singular not plural therefore only one row, no exception
            DataGridViewSelectedRowCollection rows = dgvProcesses.SelectedRows;


            // if there are no rows don't bother going any further
            // otherwise get the one and only row on index 0
            if(rows.Count>0)
            {
                SystemProcess sp = new SystemProcess((int)rows[0].Cells["ProcessID"].Value, (string)rows[0].Cells["ProcessName"].Value);
                // Create the ProcessEventArg
                ProcessEventArg pea = new ProcessEventArg(sp);
                // use the delegate and pass the information back the main form
                rs(pea);
            }
        }

        private void Child_Load(object sender, EventArgs e)
        {
            // wire up the delegate to Main Form's UpdateFromChildForm(ProcessEventArg e)
            rs = new RowSelected(frmMain.UpdateFromChildForm);
        }
    }
}
System Process Class
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SandBox
{
    public class SystemProcess
    {
        private int m_processID = 0;
        private string m_processName = string.Empty;

        public SystemProcess(int processID, string processName)
        {
            m_processID = processID;
            m_processName = processName;
        }

        public int ProcessID
        {
            get { return m_processID; }
        }

        public string ProcessName
        {
            get { return m_processName; }
        }
    }
}
ProcessEventArg Class
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SandBox
{
    public class ProcessEventArg
    {
        private SystemProcess m_systemProcess = null;

        public ProcessEventArg(SystemProcess systemProcess)
        {
            m_systemProcess = systemProcess;
        }

        public SystemProcess SystemProcess
        {
            get { return m_systemProcess; }
        }
    }
}
Glad I could help. Have a great day.
+1
Kk Ss8y ago
Thank-You :)
+1