Windows Forms: How to save files using SaveFileDialog component 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 "SaveFile" and then click OK

Step 2: Design your form as below

Add a SaveFileDialog, OpenFileDialog component to your form, then add "Rich Text Format|*.rtf" to Filter property of SaveFileDialog, OpenFileDialog

Step 3: Add code to handle your form

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

        private void btnOpen_Click(object sender, EventArgs e)
        {
            if (openFileDialog.ShowDialog() == DialogResult.OK)
                richTextBox.LoadFile(openFileDialog.FileName);
        }

        private void btnSave_Click(object sender, EventArgs e)
        {
            if (saveFileDialog.ShowDialog() == DialogResult.OK)
                richTextBox.SaveFile(saveFileDialog.FileName);
        }
    }
}

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