C#:TextBox控件操作类

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using
System;

using
System.Collections.Generic;

using
System.Linq;

using
System.Text;

using
System.Windows.Forms;

namespace
Common

{

    /// <summary>

    /// TextBox控件操作类

    /// </summary>

    public
class CtlTextBoxOperate

    {

        private
TextBox m_textBox = null;

        /// <summary>

        /// TextBox控件

        /// </summary>

        public
TextBox refTextBoxControl

        {

            set

            {

                m_textBox = value;

            }

            get

            {

                return
m_textBox;

            }

        }

        /// <summary>

        /// 构造函数

        /// </summary>

        public
CtlTextBoxOperate()

        {

        }

        private
static volatile CtlTextBoxOperate m_tbOpera = null;

        /// <summary>

        ///获取操作TextBox控件的单一实例

        /// </summary>

        public
static CtlTextBoxOperate GetInstance()

        {

            if(null
== m_tbOpera)

            {

                m_tbOpera = new
CtlTextBoxOperate();

            }

            return
m_tbOpera;

        }

        /// <summary>

        /// 只能输入整数!

        /// </summary>

        /// <param name="e"></param>

        public
void InputIntDigit(KeyPressEventArgs e)

        {

            if
((e.KeyChar < 48 || e.KeyChar > 57) && (e.KeyChar != 8))      //48代表0，57代表9，8代表空格，46代表小数点

            {

                e.Handled = true;

            }

        }

        /// <summary>

        /// 只能输入数！

        /// </summary>

        /// <param name="e"></param>

        public
void InputDigit(KeyPressEventArgs e)

        {

            if
((e.KeyChar < 48 || e.KeyChar > 57) && (e.KeyChar != 8) && e.KeyChar != 46)      //48代表0，57代表9，8代表空格，46代表小数点

            {

                e.Handled = true;

            }

        }

    }

}