源码——WinForm窗体一次性数据合法性验证

正则表达式都在程序里，呵呵……

using System;
using System.Data;
using System.Windows.Forms;


namespace HEWin.Sys
{

    /// 功能：验证DataTable、DataRow和DataForm数据的合法性
    /// 原理：使用DataColoum的扩展属性和窗口控件的Tag属性,存放数据的规范,调用本类来验证输入数据的合法性.
    /// </summary>
    public class sysValidate: IDisposable
{
        private HEWin.Sys.sysErrors _Errors=new sysErrors();
        private System.Windows.Forms.Control _FocusControl;
        static  private string UnString=@"\\'";
        static  private System.Text.RegularExpressions.Regex  _CHAR=new System.Text.RegularExpressions.Regex("["+UnString+"]");
        
        public     void  Dispose()
{
         _Errors.Dispose();

        }
        public      sysValidate()   
{
        }

        /// 功能:判断一个窗体上所有控件的数据合法性
        /// 原理:根据控件的Tag属性存放的数据规范来验证数据的合法性,
        ///      将错误返回到错误对象集合里.
        /// </summary>
        /// <param name="frm">窗口的引用</param>
        /// <returns>错误集合对象</returns>
        public Sys.sysErrors validateForm(System.Windows.Forms.Form frm)
{
            this._FocusControl=null;
            if(_Errors!=null) _Errors.Dispose();
            _Errors    =new HEWin.Sys.sysErrors();
            foreach(System.Windows.Forms.Control ctl in frm.Controls)
                _Errors.MergeErrors(validateControl(ctl));
            if(this._FocusControl!=null)
                this._FocusControl.Focus();
            return _Errors;
        }


        /// 功能:判断一个窗体上可见控件的数据合法性
        /// 原理:根据控件的Tag属性存放的数据规范来验证数据的合法性,
        ///      将错误返回到错误对象集合里.
        /// </summary>
        /// <param name="frm">窗口的引用</param>
        /// <param name="Visible">true:表示对可见控件进行判断</param>
        /// <returns>错误集合对象</returns>
        public Sys.sysErrors validateForm(System.Windows.Forms.Form frm,bool Enabled)
{
            this._FocusControl=null;
            if(_Errors!=null) _Errors.Dispose();
            _Errors    =new HEWin.Sys.sysErrors();
            foreach(System.Windows.Forms.Control ctl in frm.Controls)
                _Errors.MergeErrors(validateControl(ctl,Enabled));
            if(this._FocusControl!=null)
                this._FocusControl.Focus();
            return _Errors;
        }

        /// 功能:判断一个控件的数据合法性
        /// 原理:根据控件的Tag属性存放的数据规范来验证数据的合法性,
        ///      将错误返回到错误对象集合里.
        /// </summary>
        /// <param name="ctl">控件的引用</param>
        /// <returns>错误集合对象</returns>
        public Sys.sysErrors validateControl(System.Windows.Forms.Control ctl)
{
            HEWin.Sys.sysErrors errs    = new HEWin.Sys.sysErrors();
            
            switch (ctl.GetType().ToString())
{
                case "System.Windows.Forms.GroupBox" :
                    foreach(System.Windows.Forms.Control ctlInner in ctl.Controls)
                        errs.MergeErrors(validateControl(ctlInner));        //递归
                    break;
                case "System.Windows.Forms.Panel" :
                    foreach(System.Windows.Forms.Control ctlInner in ctl.Controls)
                        errs.MergeErrors(validateControl(ctlInner));        //递归
                    break;
                default :
                    Sys.sysError err = validate(ctl);
                    if (err != null)
{
                        if (this._FocusControl==null && ctl.Visible)
                            this._FocusControl=ctl;
                        if(this._FocusControl!=null && ctl.TabIndex<this._FocusControl.TabIndex && ctl.Visible)
                            this._FocusControl=ctl;
                        errs.AddError(err);
                    }
                    break;
            }
            return errs;
        }
    

        /// 功能:判断一个可见控件的数据合法性
        /// 原理:根据控件的Tag属性存放的数据规范来验证数据的合法性,
        ///      将错误返回到错误对象集合里.
        /// </summary>
        /// <param name="ctl">控件的引用</param>
        /// <param name="Visible">true:表示对可见控件进行判断</param>
        /// <returns>错误集合对象</returns>
        public Sys.sysErrors validateControl(System.Windows.Forms.Control ctl,bool Enabled)
{

            HEWin.Sys.sysErrors errs    = new HEWin.Sys.sysErrors();
            
            switch (ctl.GetType().ToString())
{
                case "System.Windows.Forms.GroupBox" :
                    foreach(System.Windows.Forms.Control ctlInner in ctl.Controls)
                        errs.MergeErrors(validateControl(ctlInner,Enabled));        //递归
                    break;
                case "System.Windows.Forms.Panel" :
                    foreach(System.Windows.Forms.Control ctlInner in ctl.Controls)
                        errs.MergeErrors(validateControl(ctlInner,Enabled));        //递归
                    break;
                default :
                    if (ctl.Visible!=Enabled)  
                        return errs;
                    
                    if(ctl is System.Windows.Forms.TextBox&&( ((TextBox)ctl).ReadOnly==Enabled))
                        return errs;

                    Sys.sysError err = validate(ctl);
                    if (err != null)
{
                        if (this._FocusControl==null && ctl.Visible)
                            this._FocusControl=ctl;
                        if(this._FocusControl!=null && ctl.TabIndex<this._FocusControl.TabIndex && ctl.Visible)
                            this._FocusControl=ctl;
                        errs.AddError(err);
                    }
                    break;
            }
            return errs;
        }
    

        /// 功能:判断一个控件数据的合法性
        /// 原理:根据控件的Tag属性存放的数据规范来验证数据的合法性,所有验证控件的函数都是调用此函数来执行验证的.
        /// </summary>
        /// <param name="ctl">控件的引用</param>
        /// <returns>返回错误集合对象</returns>
        private Sys.sysError validate(System.Windows.Forms.Control ctl)
{
            
            
            if (ctl.Tag != null && ctl.Tag.ToString() != "0;")
{
                string strTag = ctl.Tag.ToString();
                string strText = ctl.Text;

                if (strTag.IndexOf(";") == -1)
                    return null;

                string strVid = "";
                System.Text.RegularExpressions.Regex regex;
                if (strTag.Length >= 1)
                    strVid = strTag.Substring(0,1);
                else
                    return null;
                string strVname = "";
                string strVmaxmin = "";
                string strFill = "0";

                Sys.sysError _Error = new Sys.sysError();

                switch (strVid)
{
                    case "1" :
                        try
{
                            regex = new System.Text.RegularExpressions.Regex
                                (@"^\d+;(?<vname>[\u4E00-\u9FA0]+);(?<vfill>\d+);(?<vmaxmin>\d+,\d+);(?<vfraction>\d+);");    //匹配数字验证的正则表达式

                            strVname = regex.Match(strTag).Result("${vname}");
                            strFill = regex.Match(strTag).Result("${vfill}");
                            strVmaxmin = regex.Match(strTag).Result("${vmaxmin}");
                            int intFraction = Convert.ToInt32(regex.Match(strTag).Result("${vfraction}"));

                            if (strFill == "1")
{
                                if (strText == "")                                            //是否必填
{
                                    _Error = new HEWin.Sys.sysError(-1,strVname,1001,"不能为空！");                // D(1) = B(00000001)
                                    return _Error;
                                }
                            }
                            else
{
                                if (strText == "")
                                    return null;
                            }


                            regex = new System.Text.RegularExpressions.Regex(@"^\d*\.?\d+$");        //是否有非法字符(此处必须全部为数字)
                            if (strText != ""&&(!regex.IsMatch(strText)||strText.Substring(0,1)=="."))
{
                                _Error = new HEWin.Sys.sysError(-1,strVname,1002,"必须为数字！");                                        // D(16) = B(00010000)
                                return _Error;
                            }

                            try
{
                                System.Decimal test=System.Convert.ToDecimal(strText);
                            }
                            catch
{
                                _Error = new HEWin.Sys.sysError(-1,strVname,1002,"必须为数字！");                                        // D(16) = B(00010000)
                                return _Error    ;
                            }
                        


                            regex = new System.Text.RegularExpressions.Regex(@"^(?<vmin>\d+),(?<vmax>\d+)",
                                System.Text.RegularExpressions.RegexOptions.Compiled);


                            //要判断非常大的数据吗??

                            long lngMax = 0;
                            long lngMin = 0;
                        
                            try
{
                                lngMax = Convert.ToInt64(regex.Match(strVmaxmin).Result("${vmax}"));
                                lngMin = Convert.ToInt64(regex.Match(strVmaxmin).Result("${vmin}"));

                                if (strText == "0")
{
                                    _Error = new sysError(-1,strVname,1003,"不能为0！");
                                    return _Error;                        //非0判断
                                }

                                if (System.Math.Ceiling(Convert.ToDouble(strText)) > lngMax)        //最大值判断
                                    if (System.Math.Floor(Convert.ToDouble(strText)) != lngMax)
{
                                        _Error = new sysError(-1,strVname,1004,"最大值超出范围！");                                                // D(2) = B(00000010)
                                        return _Error;
                                    }

                                if (System.Math.Ceiling(Convert.ToDouble(strText)) < lngMin)                            //最小值判断
{
                                    _Error = new sysError(-1,strVname,1005,"最小值超出范围！");                                                // D(4) = B(00000100)
                                    return _Error;
                                }
                            }
                            catch
{
                                _Error = new sysError(-1,strVname,1006,"所填数据过大！");                                            //所填数据过大
                                return _Error;
                            }

                            if (strText.IndexOf(".") != -1)
{
                                regex = new System.Text.RegularExpressions.Regex(@"^\d+\.(?<vfraction>\d+$)");
                                if (regex.Match(strText).Result("${vfraction}").Length > intFraction)    //小数位数判断
{
                                    _Error = new sysError(-1,strVname,1007,"小数位数过长！");                                                        // D(8) = B(00001000)                        
                                    return _Error;
                                }
                                
                            }
                        }
                        catch
{
                            _Error = new sysError(-1,strVname,1499,"判断条件出错！");                //判断条件出错
                            return _Error;
                        }
                        break;
                    case "2" :
                        try
{
                            //检查控件的Tag属性设置是否正确
                            regex = new System.Text.RegularExpressions.Regex
                                (@"^\d+;(?<vname>[\u4E00-\u9FA0]+);(?<vfill>\d+);(?<vmaxmin>\d+,\d+);");
                        
                            strVname = regex.Match(strTag).Result("${vname}");
                            strFill = regex.Match(strTag).Result("${vfill}");
                            strVmaxmin = regex.Match(strTag).Result("${vmaxmin}");

                            //判断是否必填
                            if (strFill == "1")
{
                                if (strText == "")
{
                                    _Error = new sysError(-1,strVname,1001,"不能为空！");
                                    return _Error;
                                }
                            }

                            //判断是否有非法字符
                            if (_CHAR.IsMatch(strText) && strText != "")    
{
                                _Error = new sysError(-1,strVname,1008,"存在“"+UnString+"“等非法字符！");
                                return _Error;
                            }


                            if (_CHAR.IsMatch(strText) && strText != "")    
{
                                _Error = new sysError(-1,strVname,1008,"存在“"+UnString+"”等非法字符！");
                                return _Error;
                            }


                            //判断字符最大最小长度
                            //HEWin.Sys.sysFunction.MsgWarning(strVmaxmin);
                            regex = new System.Text.RegularExpressions.Regex(@"^(?<vmin>\d+),(?<vmax>\d+)");
                            int intMax = Convert.ToInt32(regex.Match(strVmaxmin).Result("${vmax}"));
                            int intMin = Convert.ToInt32(regex.Match(strVmaxmin).Result("${vmin}"));
                            //最大字符长度
                            if (strText.Length > intMax)
{
                                _Error = new sysError(-1,strVname,1009,"所填字符太长！");
                                return _Error;
                            }
                                //最小长度
                            else if (strText.Length < intMin)
{
                                _Error = new sysError(-1,strVname,1010,"所填字符太短！");
                                return _Error;                                                                
                            }

                        }
                        catch
{
                            _Error = new sysError(-1,strVname,1499,"判断条件出错！");                //判断条件出错
                            return _Error;
                        }
                                        
                        break;

                    case "3" :
                        try
{
                            regex = new System.Text.RegularExpressions.Regex
                                (@"^\d+;(?<vname>[\u4E00-\u9FA0]+);(?<vfill>\d+);(?<vmaxmin>\d{4}\-\d{1,2}\-\d{1,2},\d{4}\-\d{1,2}\-\d{1,2});",
                                System.Text.RegularExpressions.RegexOptions.Compiled);
                            //DateTimePicker控件
                            if (ctl.GetType().ToString() == "System.Windows.Forms.DateTimePicker")
                                strText = ((System.Windows.Forms.DateTimePicker)ctl).Value.ToString("yyyy-MM-dd");

                            strVname = regex.Match(strTag).Result("${vname}");
                            strFill = regex.Match(strTag).Result("${vfill}");
                            strVmaxmin = regex.Match(strTag).Result("${vmaxmin}");


                            //是否必填
                            if (strFill == "1")
{
                                if (strText == "")
{
                                    _Error = new sysError(-1,strVname,1001,"不能为空！");                //判断条件出错
                                    return _Error;
                                }
                            }

                            //最大最小日期
                            regex = new System.Text.RegularExpressions.Regex(@"^(?<vmin>\d{4}\-\d{1,2}\-\d{1,2}),(?<vmax>\d{4}\-\d{1,2}\-\d{1,2})");
                            //最大日期

                            try
{
                                if (Convert.ToDateTime(strText) > Convert.ToDateTime(regex.Match(strVmaxmin).Result("${vmax}")))
{
                                    _Error = new sysError(-1,strVname,1011,"所填日期太大！");                
                                    return _Error;
                                }
                                    //最小日期
                                else if (Convert.ToDateTime(strText) < Convert.ToDateTime(regex.Match(strVmaxmin).Result("${vmin}")))
{
                                    _Error = new sysError(-1,strVname,1011,"所填日期太小！");    
                                    return _Error;
                                }
                            }
                            catch
{
                                _Error = new sysError(-1,strVname,1012,"不是类似“yyyy-MM-dd“格式的日期！");
                                return _Error;
                            }

                        }
                        catch
{
                            _Error = new sysError(-1,strVname,1499,"判断条件出错！");                //判断条件出错
                            return _Error;
                        }

                        break;

                    default :
                        _Error = new sysError(-1,ctl.Name,1498,"Tag判断条件无法解析！");
                        return _Error;
                }            
            }
            
            return null;
        }
    }
}