Creating a Name seperator Custom Control using C#

Name.cs
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 custctrl
{
public partial class Name :TextBox
{
public Name()
{
InitializeComponent();
}
protected override void OnPaint(PaintEventArgs pe)
{
base.OnPaint(pe);
}
private String _FirstName;
private String _LastName;
public String GetFirstName()
{
UpdateNames();
return _FirstName;
}
public String GetLastName()
{
UpdateNames();
return _LastName;
}

private void UpdateNames()
{
int commapos;
int spacepos;
string name;
name = Text;
commapos =Text.IndexOf(",");
spacepos =Text.IndexOf("");
string[] flname;
if(commapos!=-1)
{
flname = Text.Split(',');
_FirstName = flname[0];
_LastName = flname[1];
}
else if(spacepos!=-1)
{
flname = Text.Split(' ');
_FirstName = flname[0];
_LastName = flname[1];
}
else
{
throw new InvalidOperationException();
}
return;
}
private void TxtName_TextChanged(object sender, EventArgs e)
{
}
}
}

Form1.cs
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 custctrl
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
//LblLast.Text = name1.Text;
LblFirst.Text = name1.GetFirstName();
LblLast.Text = name1.GetLastName();
}
}
}

Creating a Name seperator Custom Control using C#

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Creating a Name seperator Custom Control using C#