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今天下午用一小会写了一个数据校验类，只需要调用即可，具体调用如下
- 设置提示信息的形式 （可选）
如果不设置，则为MessageBox.Show("错误信息")的形式进行提示
//设置自定义错误提示方式，如果不设置，则为默认的弹出提示
RegexCheck.isCustomMsg = true;
RegexCheck.ShowMsg += (con, e) =>
{
//自定义错误信息提示方式
var _con=(Control)con; //出现错误的控件
var msg=((JEventArgs)e)msg.ToString() //具体的错误信息
//具体处理方式
};- 失去焦点验证 （方法一）
LogintextBox.RegexText(RegexEnum.Number, "用户名", false);
PasswordtextBox.RegexText(RegexEnum.Number, "密码", true);- 失去焦点验证 （方法二）
this.RegexText(
new Control[] {LogintextBox, PasswordtextBox},
new RegexEnum[] {RegexEnum.Number, RegexEnum.Number},
new string[] {"用户", "密码"},
new bool[] {false, true}
);- 保存数据时校验
//保存错误信息
var msg = "";
var flg = this.RegexSave(new Control[] { LogintextBox, PasswordtextBox }, ref msg);
if (!flg)
{
//校验不同过时，具体处理
}具体封装的类代码如下，为了更加清楚，类和枚举放在一起
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Text.RegularExpressions;
using System.Windows.Forms;
namespace DBUtility
{
public static class RegexCheck
{
/// <summary>
/// 提供键值对的正则表达式
/// </summary>
private static Dictionary<RegexEnum,string> rege;
/// <summary>
/// 定义校验数据的正则表达式,后期可添加
/// </summary>
/// <param name="regexEnum"></param>
/// <returns></returns>
public static string Get(RegexEnum regexEnum)
{
rege = rege ?? new Dictionary<RegexEnum, string>
{
{RegexEnum.Phone,@"^1(3[0-9]|4[57]|5[0-35-9]|8[0-9]|70)\d{8}$"},
{RegexEnum.IDCard, @"^([1-9]\d{7}((0\d)|(1[0-2]))(([0|1|2]\d)|3[0-1])\d{3})|([1-9]\d{5}[1-9]\d{3}((0\d)|(1[0-2]))(([0|1|2]\d)|3[0-1])((\d{4})|\d{3}[Xx]))$"},
{RegexEnum.Letter, @"^[A-Za-z]+$"},
{RegexEnum.Number, @"^[0-9]+$"},
{RegexEnum.LetterNumber, @"^[A-Za-z0-9]+$"},
{RegexEnum.ChineseChar, @"^[\u4e00-\u9fa5]+$"},
{RegexEnum.Email, @"^[\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)+$"},
};
return rege[regexEnum];
}
/// <summary>
/// 设置错误信息的背景色
/// </summary>
public static Color? ErrorColor { get; set; }
/// <summary>
/// 是否自定义错误提示信息，true时，调用 ShowMsg,false时使用系统默认提示
/// </summary>
public static bool isCustomMsg = false;
/// <summary>
/// 提示信息处理方法，可以单独定义并修改提示方式
/// </summary>
public static event EventHandler ShowMsg;
private static void OnShowMsg(Control con,string msg)
{
var handler = ShowMsg;
var jEvent = new JEventArgs()
{
msg = msg
};
if (handler != null) handler(con, jEvent);
}
/// <summary>
/// 数据校验 单个控件
/// </summary>
/// <param name="con">需要校验的控件</param>
/// <param name="regexEnum">需要校验的类型</param>
/// <param name="msg">错误提示信息</param>
/// <param name="isNotNull">是否非空校验</param>
/// <returns></returns>
public static bool RegexText(this Control con, RegexEnum regexEnum, string msg, bool isNotNull = false)
{
var isTrue = true;
var oldColor = con.BackColor;
con.Tag = regexEnum + "&" + msg + "&" + isNotNull;
con.Leave += (sender, e) =>
{
isTrue=TextRegex(con, regexEnum, msg, isNotNull);
};
con.GotFocus += (sender, e) =>
{
con.BackColor = oldColor;
};
return isTrue;
}
/// <summary>
/// 数据校验 一组控件
/// </summary>
/// <param name="form">扩展源</param>
/// <param name="cons">需要校验的控件一组控件</param>
/// <param name="regexEnum">需要校验的类型</param>
/// <param name="msg">错误提示信息</param>
/// <param name="isNotNull">是否非空校验</param>
/// <returns></returns>
public static bool RegexText(this Form form,Control [] cons, RegexEnum [] regexEnum, string [] msg, bool [] isNotNull)
{
for (var i = 0; i < cons.Length; i++)
{
var con = cons[i];
var _msg = "输入非法";
try{_msg = msg[i];}catch (Exception ex){}
var isTrue = con.RegexText(regexEnum[i], _msg, isNotNull[i]);
if (isTrue == false) return false;
}
return true;
}
/// <summary>
/// 保存操作时多控件数据校验
/// </summary>
/// <param name="form"></param>
/// <param name="cons"></param>
/// <returns></returns>
public static bool RegexSave(this Form form, Control[] cons,ref string msg)
{
foreach (var con in cons)
{
var valList=con.Tag.ToString().Split('&');
msg = valList[1];
var enumType = (RegexEnum)Enum.Parse(typeof(RegexEnum), valList[0]);
var flg = TextRegex(con, enumType, valList[1], bool.Parse(valList[2]));
if (flg == false)
{
con.BackColor = ErrorColor ?? Color.AntiqueWhite;
return false;
}
}
return true;
}
/// <summary>
/// 显示处理
/// </summary>
/// <param name="con"></param>
/// <param name="msg"></param>
private static void ShowMsgBox(Control con,string msg)
{
if (isCustomMsg)
{
OnShowMsg(con, msg);
}
else
{
MessageBox.Show(msg);
}
}
/// <summary>
/// 校验数据
/// </summary>
/// <param name="con">控件</param>
/// <param name="isNotNull">是否校验非空值</param>
/// <param name="msg">错误提示消息</param>
/// <param name="regexEnum">校验类型</param>
/// <returns></returns>
private static bool TextRegex(Control con, RegexEnum regexEnum, string msg, bool isNotNull)
{
var _msg = "";
var text = con.Text.Trim();
#region 非空校验
if (isNotNull == false && text == "") return true;
if (isNotNull && text == "")
{
_msg = msg + "不能为空值！";
con.BackColor = ErrorColor ?? Color.AntiqueWhite;
ShowMsgBox(con, _msg);
return false;
}
#endregion
#region 正则校验
var str = RegexCheck.Get(regexEnum);
var regex = new Regex(str);
var isTrue = regex.IsMatch(text);
if (isTrue) return true;
_msg = msg + "格式错误！";
ShowMsgBox(con, _msg);
con.BackColor = ErrorColor ?? Color.AntiqueWhite;
return false;
#endregion
}
}
public enum RegexEnum
{
/// <summary>
/// 电话号
/// </summary>
Phone,
/// <summary>
/// 字母
/// </summary>
Letter,
/// <summary>
/// 数字
/// </summary>
Number,
/// <summary>
/// 字母和数字
/// </summary>
LetterNumber,
/// <summary>
/// 身份证号
/// </summary>
IDCard,
/// <summary>
/// 电子邮件
/// </summary>
Email,
/// <summary>
/// 汉字
/// </summary>
ChineseChar,
}
public class JEventArgs : EventArgs
{
/// <summary>
/// 存储错误信息
/// </summary>
public string msg;
}
}