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using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Net;
using System.Reflection;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
namespace Excel.Business
{
/// <summary>
/// Class that handle Export to XML that are compliant with Excel 2007 or higher.
/// </summary>
public static class ExcelXml
{
/// <summary>
/// Export the given DataGrid to Excel XML.
/// </summary>
/// <param name="myGrid">Datagrid to export.</param>
public static void ExportToExcelXml(DataGrid myGrid)
{
if (myGrid.ItemsSource == null)
{
MessageBox.Show("No Data to export!");
return;
}
SaveFileDialog objSFD = new SaveFileDialog() { DefaultExt = "xml", Filter = "Excel XML (*.xml)|*.xml|CSV Files (*.csv)|*.csv|All files (*.*)|*.*", FilterIndex = 1 };
if (objSFD.ShowDialog() == true)
{
MessageBoxResult res = MessageBox.Show("Full export ?", "Export type", MessageBoxButton.OKCancel);
if (res == MessageBoxResult.OK)
{
ExportFullSource(objSFD, myGrid);
}
else
{
ExportDataGrid(objSFD, myGrid);
}
}
}
/// <summary>
/// Export the entire source of the datagrid to Excel.
/// </summary>
/// <param name="objSFD">Object that contains the name of the file that will have datas.</param>
/// <param name="myGrid">Datagrid to export.</param>
private static void ExportFullSource(SaveFileDialog objSFD, DataGrid myGrid)
{
bool firstRow = true;
LinkedList<string> columns = new LinkedList<string>();
string strFormat = objSFD.SafeFileName.Substring(objSFD.SafeFileName.IndexOf('.') + 1).ToUpper();
StringBuilder strBuilder = new StringBuilder();
List<string> lstFields = new List<string>();
try
{
foreach (object data in myGrid.ItemsSource)
{
Type objectType = data.GetType();
if (firstRow)
{
foreach (PropertyInfo item in objectType.GetProperties())
{
columns.AddLast(item.Name);
lstFields.Add(FormatField(item.Name, strFormat));
}
BuildStringOfRow(strBuilder, lstFields, strFormat);
firstRow = false;
}
lstFields.Clear();
foreach (string itemProp in columns)
{
PropertyInfo f = objectType.GetProperty(itemProp);
if (f.GetValue(data, null) == null)
{
lstFields.Add(FormatField(string.Empty, strFormat));
}
else
{
lstFields.Add(FormatField(f.GetValue(data, null).ToString(), strFormat));
}
}
BuildStringOfRow(strBuilder, lstFields, strFormat);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
finally
{
WriteExcelXmlFile(objSFD, strFormat, strBuilder);
MessageBox.Show("Export Done!!!");
}
}
/// <summary>
/// Export visible datas to an excel sheet.
/// </summary>
/// <param name="objSFD">Object that contains the name of the file that will have datas.</param>
/// <param name="myGrid">Datagrid to export.</param>
private static void ExportDataGrid(SaveFileDialog objSFD, DataGrid myGrid)
{
string strFormat = objSFD.SafeFileName.Substring(objSFD.SafeFileName.IndexOf('.') + 1).ToUpper();
StringBuilder strBuilder = new StringBuilder();
List<string> lstFields = new List<string>();
if (myGrid.HeadersVisibility == DataGridHeadersVisibility.Column || myGrid.HeadersVisibility == DataGridHeadersVisibility.All)
{
foreach (DataGridColumn dgcol in myGrid.Columns)
{
lstFields.Add(FormatField(dgcol.Header.ToString(), strFormat));
}
BuildStringOfRow(strBuilder, lstFields, strFormat);
}
try
{
foreach (object data in myGrid.ItemsSource)
{
lstFields.Clear();
foreach (DataGridColumn col in myGrid.Columns)
{
string strValue = string.Empty;
Binding objBinding = null;
if (col is DataGridBoundColumn)
{
objBinding = (col as DataGridBoundColumn).Binding;
}
if (col is DataGridTemplateColumn)
{
// This is a template column... let us see the underlying dependency object
try
{
DependencyObject objDO = (col as DataGridTemplateColumn).CellTemplate.LoadContent();
FrameworkElement oFE = (FrameworkElement)objDO;
FieldInfo oFI = oFE.GetType().GetField("TextProperty");
if (oFI != null)
{
if (oFI.GetValue(null) != null)
{
if (oFE.GetBindingExpression((DependencyProperty)oFI.GetValue(null)) != null)
{
objBinding = oFE.GetBindingExpression((DependencyProperty)oFI.GetValue(null)).ParentBinding;
}
}
}
}
catch
{
objBinding = null;
}
}
if (objBinding != null)
{
if (objBinding.Path.Path != string.Empty)
{
PropertyInfo pi = data.GetType().GetProperty(objBinding.Path.Path);
if (pi != null)
{
strValue = pi.GetValue(data, null).ToString();
}
}
if (objBinding.Converter != null)
{
if (strValue != string.Empty)
{
strValue = objBinding.Converter.Convert(strValue, typeof(string), objBinding.ConverterParameter, objBinding.ConverterCulture).ToString();
}
else
{
strValue = objBinding.Converter.Convert(data, typeof(string), objBinding.ConverterParameter, objBinding.ConverterCulture).ToString();
}
}
}
lstFields.Add(FormatField(strValue, strFormat));
}
BuildStringOfRow(strBuilder, lstFields, strFormat);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
return;
}
WriteExcelXmlFile(objSFD, strFormat, strBuilder);
MessageBox.Show("Export Done!!!");
}
/// <summary>
/// Write to Excel XML file.
/// </summary>
/// <param name="objSFD">Object that contains destination filename.</param>
/// <param name="strFormat">XML to indicate the destination is a XML file, otherwise it is a CSV file.</param>
/// <param name="strBuilder">Datas well formatted.</param>
private static void WriteExcelXmlFile(SaveFileDialog objSFD, string strFormat, StringBuilder strBuilder)
{
StreamWriter sw = new StreamWriter(objSFD.OpenFile());
if (strFormat == "XML")
{
// Let us write the headers for the Excel XML
sw.WriteLine("<?xml version=\"1.0\" encoding=\"utf-8\"?>");
sw.WriteLine("<?mso-application progid=\"Excel.Sheet\"?>");
sw.WriteLine("<Workbook xmlns=\"urn:schemas-microsoft-com:office:spreadsheet\">");
sw.WriteLine("<DocumentProperties xmlns=\"urn:schemas-microsoft-com:office:office\">");
sw.WriteLine("<Author>" + App.Current.Host.InitParams["UserName"].ToString() + "</Author>");
sw.WriteLine("<Created>" + DateTime.Now.ToLocalTime().ToLongDateString() + "</Created>");
sw.WriteLine("<LastSaved>" + DateTime.Now.ToLocalTime().ToLongDateString() + "</LastSaved>");
sw.WriteLine("<Company>My Company</Company>");
sw.WriteLine("<Version>12.00</Version>");
sw.WriteLine("</DocumentProperties>");
sw.WriteLine("<Worksheet ss:Name=\"Excel Export\" xmlns:ss=\"urn:schemas-microsoft-com:office:spreadsheet\">");
sw.WriteLine("<Table>");
}
sw.Write(strBuilder.ToString());
if (strFormat == "XML")
{
sw.WriteLine("</Table>");
sw.WriteLine("</Worksheet>");
sw.WriteLine("</Workbook>");
}
sw.Close();
}
/// <summary>
/// Build the destination string.
/// </summary>
/// <param name="strBuilder">Destination buffer.</param>
/// <param name="lstFields">Collection of string that contains row datas.</param>
/// <param name="strFormat">Format of the destination file. Xml or Csv.</param>
private static void BuildStringOfRow(StringBuilder strBuilder, List<string> lstFields, string strFormat)
{
switch (strFormat)
{
case "XML":
strBuilder.AppendLine("<Row>");
strBuilder.AppendLine(String.Join("\r\n", lstFields.ToArray()));
strBuilder.AppendLine("</Row>");
break;
case "CSV":
strBuilder.AppendLine(String.Join(",", lstFields.ToArray()));
break;
}
}
/// <summary>
/// Format field regarding destination file format.
/// </summary>
/// <param name="data">Data to fomat.</param>
/// <param name="format">Format of the destination file. Xml or CSV.</param>
/// <returns>Formatted field.</returns>
private static string FormatField(string data, string format)
{
switch (format)
{
case "XML":
return String.Format("<Cell><Data ss:Type=\"String\">{0}</Data></Cell>", data);
case "CSV":
return String.Format("\"{0}\"", data.Replace("\"", "\"\"\"").Replace("\n", string.Empty).Replace("\r", string.Empty));
}
return data;
}
}
} |
