using System;

using System.Net;

using System.Windows;

using System.Windows.Controls;

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;

using System.Collections.Generic;

using System.Windows.Data;

using System.Reflection;

namespace MySlSyj

{

    public static class dataGridkz

    {

        public static string ExportDataGrid(this DataGrid grid, bool withHeaders)

        {

            string colPath;

            System.Reflection.PropertyInfo propInfo;

            System.Windows.Data.Binding binding;

            System.Text.StringBuilder strBuilder = new System.Text.StringBuilder();          

            List<string> headers = new List<string>();

            List<string> GetValue = new List<string>();

            foreach (var cl in grid.Columns)

            {

                headers.Add(FormatCSVField(cl.Header.ToString()));

            }

            strBuilder

            .Append(String.Join("", headers.ToArray()))

            .Append("\t\n");

            ////

            //int i = 0;

            string AA = "";

            foreach (Object data in grid.ItemsSource)

            {

                var csvRow = new List<string>();

                foreach (DataGridColumn col in grid.Columns)

                {

                    string strValue = "";

                    Binding objBinding = null;

                    if (col is DataGridBoundColumn)

                        objBinding = (col as DataGridBoundColumn).Binding;

                    if (col is DataGridTemplateColumn)

                    {

                        //这是一个模板列

                        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;

                            }

                        }

                    }

                    if (objBinding != null)

                    {

                        if (objBinding.Path.Path != "")

                        {

                            PropertyInfo pi = data.GetType().GetProperty(objBinding.Path.Path);

                            if (pi != null) strValue = pi.GetValue(data, null).ToString();

                        }

                        if (objBinding.Converter != null)

                        {

                            if (strValue != "")

                                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();

                        }

                    }

                   GetValue.Add(FormatCSVField(strValue));

                }

              strBuilder.Append(String.Join("", GetValue.ToArray())).Append("\t\n");

              GetValue.Clear();

            }

            return strBuilder.ToString();

        }

        private static string FormatCSVField(string data)

        {

            return String.Format("\t{0}", data.Replace("\"", "\t\n"));

        }

    }

}