استفاده از خاصیت یک TextBox

[codedeveloper]

public Form1()

    {

        InitializeComponent();

        textBox1.ForeColor = SystemColors.GrayText;

        textBox1.Text = "Please Enter Your Name";

        this.textBox1.Leave += new System.EventHandler(this.textBox1_Leave);

        this.textBox1.Enter += new System.EventHandler(this.textBox1_Enter);

    }



    private void textBox1_Leave(object sender, EventArgs e)

    {

        if (textBox1.Text.Length == 0)

        {

            textBox1.Text = "Please Enter Your Name";

            textBox1.ForeColor = SystemColors.GrayText;

        }

    }



    private void textBox1_Enter(object sender, EventArgs e)

    {

        if (textBox1.Text == "Please Enter Your Name")

        {

            textBox1.Text = "";

            textBox1.ForeColor = SystemColors.WindowText;

        }

    }