Data Entry With Binding : DataBinding TextBox « GUI Windows Forms « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. GUI Windows Forms
3. DataBinding TextBox

using System;
using System.Drawing;
using System.IO;
using System.Windows.Forms;
using System.Xml.Serialization;

class MyClass : Form
{
    XmlSerializer xmlser = new XmlSerializer(typeof(Employee));
    BindingSource bindsrc = new BindingSource();

    public static void Main()
    {
        Application.Run(new MyClass());
    }
    public MyClass()
    {
        bindsrc.Add(new Employee());
        EmployeePanel personpnl = new EmployeePanel(bindsrc);
        personpnl.Parent = this;
        personpnl.Dock = DockStyle.Fill;

        MenuStrip menu = new MenuStrip();
        menu.Parent = this;
        ToolStripMenuItem item = (ToolStripMenuItem) menu.Items.Add("&File");
        item.DropDownItems.Add("&New", null, FileNewOnClick);
        item.DropDownItems.Add("&Open...", null, FileOpenOnClick);
        item.DropDownItems.Add("Save &As...", null, FileSaveAsOnClick);
    }
    void FileNewOnClick(object objSrc, EventArgs args)
    {
        bindsrc[0] = new Employee();
    }
    void FileOpenOnClick(object objSrc, EventArgs args)
    {
        OpenFileDialog dlg = new OpenFileDialog();
        if (dlg.ShowDialog() == DialogResult.OK)
        {
            StreamReader sr = new StreamReader(dlg.FileName);
            bindsrc[0] = xmlser.Deserialize(sr);
            sr.Close();
        }
    }
    void FileSaveAsOnClick(object objSrc, EventArgs args)
    {
        SaveFileDialog dlg = new SaveFileDialog();
        if (dlg.ShowDialog() == DialogResult.OK)
        {
            StreamWriter sw = new StreamWriter(dlg.FileName);
            xmlser.Serialize(sw, bindsrc[0]);
            sw.Close();
        }
    }
}

class EmployeePanel : FlowLayoutPanel
{
    public EmployeePanel(BindingSource bindsrc)
    {
        Label lbl = new Label();
        lbl.Parent = this;
        lbl.Text = "First Name: ";
        lbl.AutoSize = true;
        lbl.Anchor = AnchorStyles.Left;

        TextBox txtboxFirstName = new TextBox();
        txtboxFirstName.Parent = this;
        txtboxFirstName.AutoSize = true;
        txtboxFirstName.DataBindings.Add("Text", bindsrc, "FirstName");
        txtboxFirstName.DataBindings[0].DataSourceUpdateMode = DataSourceUpdateMode.OnPropertyChanged;

        this.SetFlowBreak(txtboxFirstName, true);

        lbl = new Label();
        lbl.Parent = this;
        lbl.Text = "Last Name: ";
        lbl.AutoSize = true;
        lbl.Anchor = AnchorStyles.Left;

        TextBox txtboxLastName = new TextBox();
        txtboxLastName.Parent = this;
        txtboxLastName.AutoSize = true;
        txtboxLastName.DataBindings.Add("Text", bindsrc, "LastName");
        txtboxLastName.DataBindings[0].DataSourceUpdateMode = DataSourceUpdateMode.OnPropertyChanged;

        this.SetFlowBreak(txtboxLastName, true);

        lbl = new Label();
        lbl.Parent = this;
        lbl.Text = "Birth Date: ";
        lbl.AutoSize = true;
        lbl.Anchor = AnchorStyles.Left;

        DateTimePicker dtPicker = new DateTimePicker();
        dtPicker.Parent = this;
        dtPicker.AutoSize = true;
        dtPicker.DataBindings.Add("Value", bindsrc, "BirthDate");
        dtPicker.DataBindings[0].DataSourceUpdateMode = DataSourceUpdateMode.OnPropertyChanged;
    }
}

class Employee
{
    public string FirstName;
    public string LastName;
    public DateTime BirthDate;
}