Windows Forms: How to create multi language using Resource Manager and Culture Info in C#

Step 1: Click New Project, then select Visual C# on the left, then Windows and then select Windows Forms Application. Name your project "CultureExample" and then click OK

Step 2: Design your form as below

Create a new dataset, then add a Language table to your dataset as below

Step 3: Add code to handle your form as below

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Globalization;
using System.Linq;
using System.Resources;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace CultureExample
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void btnSave_Click(object sender, EventArgs e)
        {
            //Save data to xml file
            appData.WriteXml(string.Format("{0}/data.xml", Application.StartupPath));
            //Write language to resource file
            ResourceWriter ren = new ResourceWriter(Application.StartupPath + "/resource.en-US.resources");
            ResourceWriter rde = new ResourceWriter(Application.StartupPath + "/resource.de-DE.resources");
            foreach(AppData.LanguagesRow row in appData.Languages.Rows)
            {
                ren.AddResource(row.ID, row.English);
                rde.AddResource(row.ID, row.German);
            }
            ren.Generate();
            ren.Close();
            rde.Generate();
            rde.Close();
            MessageBox.Show("Successfully saved.", "Message", MessageBoxButtons.OK, MessageBoxIcon.Information);
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            //Read data from xml file
            appData.ReadXml(string.Format("{0}/data.xml", Application.StartupPath));
            //Load language
            CultureInfo ci = new CultureInfo("de-DE");
            Thread.CurrentThread.CurrentCulture = ci;
            Thread.CurrentThread.CurrentUICulture = ci;
            ResourceManager rm = ResourceManager.CreateFileBasedResourceManager("resource", Application.StartupPath, null);
            if (rm.GetString("0001") != null)
                lblMessage.Text = rm.GetString("0001");
        }
    }
}

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