طلب :كود تغيير لون مربع النص عند تحريك المؤشر عليه

private void textBox1_MouseEnter(object sender, EventArgs e)
{
textBox1.BackColor = SystemColors.Info;
}

private void textBox1_MouseLeave(object sender, EventArgs e)
{
textBox1.BackColor = SystemColors.Window;
}

public Form1()
{
InitializeComponent();

this.textBox1.MouseEnter += new System.EventHandler(this.TextBox_MouseEnter);
this.textBox1.MouseLeave += new System.EventHandler(this.TextBox_MouseLeave);

this.textBox2.MouseEnter += new System.EventHandler(this.TextBox_MouseEnter);
this.textBox2.MouseLeave += new System.EventHandler(this.TextBox_MouseLeave);
}

private void TextBox_MouseEnter(object sender, EventArgs e)
{
((Control)sender).BackColor = SystemColors.Info;
}

private void TextBox_MouseLeave(object sender, EventArgs e)
{
((Control)sender).BackColor = SystemColors.Window;
}