public.cs

机械制造业信息管理系统(含源码) 是为一个粮仪厂开发的

		/// <summary>
		/// 检查给定的字符串是否符合指定的位数，如果不符合则在前补上剩余位数的0
		/// </summary>
		/// <param name="str"></param>
		/// <param name="num"></param>
		/// <returns></returns>
		public static string SetStartZero(string str,int num){
			if(str != null && num > 0){
				for(int i=str.Length;i<num;i++){
					str = "0" + str;
				}
			}
			return str;
		}

		/// <summary>
		/// 检查系统的自动编号是否正确
		/// 指被应用了自动编号的位置的编号的有效性
		/// </summary>
		/// <returns></returns>
		public static bool SystemSignIsRight(string sign){
			if(sign != null && sign.Trim().Length == 14){
				string year  = sign.Substring(0,4);
				string line1 = sign.Substring(4,1);
				string dm    = sign.Substring(5,4);
				string line2 = sign.Substring(9,1);
				string num   = sign.Substring(10,4);
				try{
					int _year = Int32.Parse(year);
					int _dm   = Int32.Parse(dm);
					int _num  = Int32.Parse(num);
				}catch{
					return false;
				}

				if(line1 != "-" || line2 != "-"){
					return false;
				}

				return true;

			}else{
				return false;
			}
		}

		/// <summary>
		/// 处理打印时的页对，适用于列表打印
		/// </summary>
		/// <param name="tj">用$隔开的条件</param>
		/// <returns></returns>
		public static string PrintHeader(string tj){
			string header = null;
			if(tj != null && tj.Trim() != ""){
				tj = tj.Replace("NULL$","");
				tj = tj.Replace("NULL","");
				if(tj.StartsWith("$")) tj = tj.Substring(1,tj.Length-1);
				if(tj != ""){
					string[] tjArr = tj.Split('$');
					//bool first = true;
					for(int i=0;i<tjArr.Length;i++){
						//if(first){
							header += "{[\\n]"+ tjArr[i].ToString() +"}";
						//	//first = false;
						//}else{
						//	header += "{[\\l100]"+ tjArr[i].ToString() +"}";
						//	first = true;
						//}
					}
				}
			}
			return header;
		}

		/// <summary>
		/// 返回指定编号的客户资料（一行）
		/// </summary>
		/// <returns></returns>
		public static DataRow GetCorpRow(string sign){
			DataRow row = null;
			try{
				string sql = "select * from CorpColl where sign = '"+ sign +"'";
				OleDbDataAdapter ad = new OleDbDataAdapter(sql,Public.conn);
				DataSet ds = new DataSet();
				ad.Fill(ds,"info");
				if(ds.Tables[0].Rows.Count == 1){
					row = ds.Tables[0].Rows[0];
				}
			}catch(Exception ex){
				MessageBox.Show(ex.Message.ToString());
				return row;
			}

			return row;
		}

		/// <summary>
		/// 将给定字符串每个字符间用空格分隔
		/// </summary>
		/// <param name="str"></param>
		/// <returns></returns>
		public static string SpaceForString(string str,string spaceChar){
			if(str != null && str != ""){
				string _temp = "";
				char[] s = str.ToCharArray();
				for(int i=0;i<s.Length;i++){
					if(_temp == "") _temp  = s[i].ToString();
					else            _temp += spaceChar + s[i].ToString();
				}
				str = _temp;
			}

			return str;
		}

		/// <summary>
		/// 返回中文年月日
		/// </summary>
		/// <param name="date"></param>
		/// <returns></returns>
		public static string GetChineseDate(DateTime date){
			return date.Year.ToString() + "年" + date.Month.ToString() + "月" + date.Day.ToString() + "日";
		}

		/// <summary>
		/// 返回主单位的联系信息
		/// </summary>
		/// <returns></returns>
		public static string GetPrintFooter(){
			return "地址：" + Public.publicAddress + "  电话：" + Public.publicTel + "  传真：" + Public.publicFax;
		}

		/// <summary>
		/// 是否手工输入了公司名称
		/// 如果是则反回true,反之false
		/// </summary>
		/// <returns></returns>
		public static bool CheckCorpNameInput(string cn,ComboBox sel){
			if(cn == null || cn.Trim() == "") return false;
			if(sel != null && sel.Items.Count > 0){
				bool reVal = false;
				for(int i=0;i<sel.Items.Count;i++){
					if(cn == sel.Items[i].ToString().Trim()){
						reVal = true;
						i = sel.Items.Count;
					}
				}
				return reVal;
			}else{
				return false;
			}
		}

		/// <summary>
		/// 统计汉字和英文字符的个数
		/// </summary>
		/// <returns>返回数组，0表示汉字的个数,1表示的是英文的个数</returns>
		public static int TotalChrNum(string str){
			int[] result = new int[2];
			result[0] = 0;
			result[1] = 0;

			if(str != null && str != ""){
				char[] strs = str.ToCharArray();
				for(int i=0;i<strs.Length;i++){
					if(System.Text.RegularExpressions.Regex.IsMatch(strs[i].ToString(),"[\u4e00-\u9fa5]"))
					{
						result[0] += 2;
					}
					else{
						result[1] ++;
					}
				}
			}

			return result[0] + result[1];
		}

		/// <summary>
		/// 将待打印的地址字符按每行能显示下的字符个数进行分隔
		/// </summary>
		/// <param name="address"></param>
		/// <param name="cutNum"></param>
		/// <returns></returns>
		public static string[] CutAddressForPrint(string address,int cutNum){
			string[] result = new string[2];
			result[0] = "";
			result[1] = "";

			if(address != null && cutNum > 0){
				if(Public.TotalChrNum(address) <= cutNum){
					result[0] = address;
				}else{
					char[] addressChars = address.ToCharArray();
					int    leftNum = 0;
					for(int i=0;i<addressChars.Length;i++){
						if( leftNum <= cutNum){
							if(System.Text.RegularExpressions.Regex.IsMatch(addressChars[i].ToString(),"[\u4e00-\u9fa5]")){
								leftNum += 2;
							}else{
								leftNum ++;
							}
							result[0] += addressChars[i].ToString();
						}else{
							result[1] += addressChars[i].ToString();
						}
					}
				}
			}

			return result;
		}

		#region 使grid根据内容适应列宽
		public static void SizeColumnsToContent (System.Windows.Forms.DataGrid dataGrid, int nRowsToScan,System.Data.DataTable _dataTable,string[] hideColumn) {

			Graphics Graphics = dataGrid.CreateGraphics();

			System.Data .DataTable dataTable =_dataTable;

			DataGridTableStyle tableStyle = null;

			if(dataGrid.TableStyles.Count == 0){
				tableStyle = new DataGridTableStyle();

				dataGrid.TableStyles.Clear();

				tableStyle.MappingName = dataTable.TableName;

				//设置grid中蓝白交错效果
				tableStyle.AlternatingBackColor =Color.FromArgb(224,226,228);
				tableStyle.BackColor =Color.White ;

			}else tableStyle = dataGrid.TableStyles[0];

			tableStyle.PreferredRowHeight = 22;

			try {
				

				if (-1 == nRowsToScan) {
					nRowsToScan = dataTable.Rows.Count;
				}else {
					nRowsToScan = System.Math.Min(nRowsToScan, dataTable.Rows.Count);
				}

				DataGridTextBoxColumn columnStyle;
				int iWidth;

				for (int iCurrCol = 0; iCurrCol < dataTable.Columns.Count; iCurrCol++) {
					DataColumn dataColumn = dataTable.Columns[iCurrCol];

					columnStyle = new DataGridTextBoxColumn();

					columnStyle.TextBox.Enabled = true;
					columnStyle.HeaderText = dataColumn.ColumnName;
					columnStyle.MappingName = dataColumn.ColumnName;

					columnStyle.NullText = "";

					iWidth = (int)(Graphics.MeasureString(columnStyle.HeaderText, dataGrid.Font).Width);

					DataRow dataRow;
					for (int iRow = 0; iRow < nRowsToScan; iRow++) {
						dataRow = dataTable.Rows[iRow];

						if (null != dataRow[dataColumn.ColumnName]) {
							int iColWidth = (int)(Graphics.MeasureString(dataRow.ItemArray[iCurrCol].ToString(), dataGrid.Font).Width);
							iWidth = (int)System.Math.Max(iWidth, iColWidth);
						}
					}

					bool isHide = false;

					if(hideColumn != null){
						for(int x=0;x<hideColumn.Length;x++){
							if(hideColumn[x].ToString().Equals(dataColumn.ColumnName)){
								isHide = true;
							}
						}
					}

					if(isHide)
					{
						columnStyle.Width = 0;
					}
					else{
						columnStyle.Width = iWidth + 4;
					}

					tableStyle.GridColumnStyles.Add(columnStyle);
				}

				dataGrid.TableStyles.Add(tableStyle);
			}catch(Exception e) {
				MessageBox.Show(e.Message);
			}finally {
				Graphics.Dispose();
			}
		}
		#endregion
	}
}