Form1.cs  
     
usingSystem;usingSystem.Collections.Generic;usingSystem.ComponentModel;usingSystem.Data;usingSystem.Drawing;usingSystem.Linq;usingSystem.Text;usingSystem.Threading.Tasks;usingSystem.Windows.Forms;namespace_0057 {-  
publicpartialclassForm1 : Form { -   
publicForm1() { -    
InitializeComponent(); -   
} -   
//кнопка Загрузить текст -   
privatevoidbutton1_Click(objectsender, EventArgs e) { -    
openFileDialog1.Filter ="Text (*.txt) | *.txt"; -    
if(openFileDialog1.ShowDialog() == DialogResult.OK) { -     
richTextBox1.LoadFile(openFileDialog1.FileName, RichTextBoxStreamType.PlainText); -    
} -   
} -   
//кнопка Сохранить текст -   
privatevoidbutton2_Click(objectsender, EventArgs e) { -    
saveFileDialog1.Filter ="Text (*.txt) | *.txt"; -    
if(saveFileDialog1.ShowDialog() == DialogResult.OK) { -     
richTextBox1.SaveFile(saveFileDialog1.FileName, RichTextBoxStreamType.PlainText); -    
} -   
} -   
//кнопка Цвет -   
privatevoidbutton3_Click(objectsender, EventArgs e) { -    
if(colorDialog1.ShowDialog() == DialogResult.OK) { -     
richTextBox1.Focus(); -     
richTextBox1.SelectionColor = colorDialog1.Color; -    
} -   
} -   
//кнопка Шрифт -   
privatevoidbutton4_Click(objectsender, EventArgs e) { -    
if(fontDialog1.ShowDialog() == DialogResult.OK) { -     
richTextBox1.Focus(); -     
richTextBox1.SelectionFont = fontDialog1.Font; -    
} -   
} -   
//кнопка Очистить -   
privatevoidbutton5_Click(objectsender, EventArgs e) { -    
richTextBox1.Clear(); -    
richTextBox1.Focus(); -   
} -  
} }
usingSystem;usingSystem.Collections.Generic;usingSystem.ComponentModel;usingSystem.Data;usingSystem.Drawing;usingSystem.Linq;usingSystem.Text;usingSystem.Threading.Tasks;usingSystem.Windows.Forms;namespace_0057 {-  
publicpartialclassForm1 : Form { -   
publicForm1() { -    
InitializeComponent(); -   
} -   
//кнопка Загрузить текст -   
privatevoidbutton1_Click(objectsender, EventArgs e) { -    
openFileDialog1.Filter ="Text (*.txt) | *.txt"; -    
if(openFileDialog1.ShowDialog() == DialogResult.OK) { -     
richTextBox1.LoadFile(openFileDialog1.FileName, RichTextBoxStreamType.PlainText); -    
} -   
} -   
//кнопка Сохранить текст -   
privatevoidbutton2_Click(objectsender, EventArgs e) { -    
saveFileDialog1.Filter ="Text (*.txt) | *.txt"; -    
if(saveFileDialog1.ShowDialog() == DialogResult.OK) { -     
richTextBox1.SaveFile(saveFileDialog1.FileName, RichTextBoxStreamType.PlainText); -    
} -   
} -   
//кнопка Цвет -   
privatevoidbutton3_Click(objectsender, EventArgs e) { -    
if(colorDialog1.ShowDialog() == DialogResult.OK) { -     
richTextBox1.Focus(); -     
richTextBox1.SelectionColor = colorDialog1.Color; -    
} -   
} -   
//кнопка Шрифт -   
privatevoidbutton4_Click(objectsender, EventArgs e) { -    
if(fontDialog1.ShowDialog() == DialogResult.OK) { -     
richTextBox1.Focus(); -     
richTextBox1.SelectionFont = fontDialog1.Font; -    
} -   
} -   
//кнопка Очистить -   
privatevoidbutton5_Click(objectsender, EventArgs e) { -    
richTextBox1.Clear(); -    
richTextBox1.Focus(); -   
} -  
} }