using System;
//using C1.Win.C1FlexGrid;
using Excel;// = Microsoft.Office.Interop.Excel;
using System.Windows.Forms;


namespace HrSalary.util
{
	/// <summary>
	/// GridUtil 的摘要說明。
	/// </summary>
	public class GridUtil
	{
		public GridUtil()
		{
			//
			// TODO: 在此處添加構(gòu)造函數(shù)邏輯
			//
		}
		private string Get_TableHeader(int num)
		{
		
			string  A="";
			for(int i=0;i<num;i++)
			{
				if((65+i)<91)
					A=((char)(65+i)).ToString();
				else
				
					A="A"+((char)(i+39)).ToString();   //i+39:Z后的字符轉(zhuǎn)成A、B...

			}
			return A;
		}
		public void GridXls(SaveFileDialog sf ,System.Windows.Forms.DataGrid grid,Excel.Application ExcelObj)
		{
			try
			{
				System.Data.DataSet ds = (System.Data.DataSet)grid.DataSource;
				if(ds==null|| ds.Tables.Count<=0) 
				{
					MessageBox.Show("無顯示數(shù)據(jù)，請查詢庫數(shù)據(jù)或?qū)霐?shù)據(jù)！！！");
					return;
				}				
			    ExcelObj.Visible =true;
				object missing = System.Reflection.Missing.Value; 
				sf.InitialDirectory = "C:\\";
				sf.Filter = "Exel files (*.xls)|*.xls"  ;
				sf.FilterIndex = 2 ;   
				sf.RestoreDirectory = true ;
			    sf.OverwritePrompt =false; 
					string filename = "無標題.xls"; // sf.FileName;				
					int countcolumns=ds.Tables[0].Columns.Count;
					int countrows=ds.Tables[0].Rows.Count;
					string A=Get_TableHeader(countcolumns);	
					Excel.Workbooks workbooks=ExcelObj.Workbooks;
					Excel.Workbook  theWorkbook =workbooks.Add(missing);
					Excel.Sheets sheets = theWorkbook.Worksheets;
					Excel.Worksheet  worksheet =(Excel.Worksheet)sheets.get_Item(1);
					Excel.Range range=worksheet.get_Range("A1",A+(countrows+1).ToString());
					string [,]  myvalues1= new string[countrows+1,countcolumns];
					for(int j=0;j<countcolumns;j++)
					{ 
						myvalues1[0,j]=ds.Tables[0].Columns[j].Caption.ToString();
					}
					for(int i=1;i<countrows+1;i++)
					{
						for(int j=0;j<countcolumns;j++)
						{
							myvalues1[i,j]=ds.Tables[0].Rows[i-1][j].ToString();
						}
					}			
					range.Cells.Value2=myvalues1;					
					workbooks=null;
					theWorkbook =null;
					sheets = null;
					worksheet =null;
					range=null; 
			}
			catch(Exception ee)
			{
				MessageBox.Show(ee.ToString());
			}
			
			
}
	

		public static void Grid2CSV(System.Windows.Forms.ContainerControl control, System.Windows.Forms.DataGrid grid, string filename)
		{
			/*C1.Win.C1FlexGrid.C1FlexGrid c1grid = new C1.Win.C1FlexGrid.C1FlexGrid();
			c1grid.Cols.Fixed = 0;
			c1grid.Parent = control;
			System.Data.DataSet ds = (System.Data.DataSet)grid.DataSource;
			System.Diagnostics.Debug.Assert(ds!=null, "DataSet不能為空。");
			System.Diagnostics.Debug.Assert(ds.Tables.Count>0, "DataSet不能為空。");
			c1grid.DataSource = ds.Tables[0];
			System.Diagnostics.Debug.Assert(c1grid.DataSource!=null);
			for(int i=0;i<ds.Tables[0].Columns.Count;++i)
			{
				
				if (grid.TableStyles.Count<=0 || i>=grid.TableStyles[0].GridColumnStyles.Count)                    
					c1grid.Cols[i].Caption = ds.Tables[0].Columns[i].Caption;
				else
					c1grid.Cols[i].Caption = grid.TableStyles[0].GridColumnStyles[i].HeaderText;
			}
			c1grid.Update();
			c1grid.SaveGrid(filename, C1.Win.C1FlexGrid.FileFormatEnum.TextComma, true, System.Text.Encoding.GetEncoding("gb2312"));
		*/}
	}
}