using Microsoft.Reporting.WinForms;
using System;
using System.IO;
using System.Linq;

namespace Muchinfo.PC.Common.Helpers
{
    public class ExportHelper
    {
        /// <summary>
        /// 导出
        /// </summary>
        /// <param name="reportViewer">The report viewer.</param>
        /// <param name="fileName">Name of the file.</param>
        public static void ExportReport(ReportViewer reportViewer, string fileName)
        {
            if (reportViewer.LocalReport.DataSources.Count != 0)
            {
                System.Windows.Application.Current.Dispatcher.BeginInvoke(new Action(() =>
                {
                    var file = new System.Windows.Forms.SaveFileDialog();
                    file.FileName = fileName;
                    file.Filter = "PDF|*.pdf|Word|*.doc|Excel|*.xls";   //保存类型
                    if (file.ShowDialog().Equals(System.Windows.Forms.DialogResult.OK))
                    {
                        if (string.IsNullOrWhiteSpace(file.FileName)) return;
                        string ext = Path.GetExtension(file.FileName).Replace(".", "");  //扩展名
                        //页面信息
                        string devInfo = @"<DeviceInfo>   
                                    <OutputFormat>" + ext + @"</OutputFormat>
                                    <PageWidth>21cm</PageWidth>
                                    <PageHeight>29.7cm</PageHeight>
                                    <MarginTop>0in</MarginTop>
                                    <MarginLeft>0in</MarginLeft>
                                    <MarginRight>0in</MarginRight>
                                    <MarginBottom>0in</MarginBottom>
                                 </DeviceInfo>";
                        devInfo = "";
                        RenderingExtension render = null;
                        if (ext.Equals("pdf"))
                            render = reportViewer.LocalReport.ListRenderingExtensions().FirstOrDefault((r) => r.Name.Equals("PDF"));
                        else if (ext.Equals("xls"))
                            render = reportViewer.LocalReport.ListRenderingExtensions().FirstOrDefault((r) => r.Name.Equals("Excel"));
                        //else if (ext.Equals("xlsx"))
                        //    render = this._reportViewer.LocalReport.ListRenderingExtensions().FirstOrDefault((r) => r.Name.Equals("EXCELOPENXML"));
                        else if (ext.Equals("doc"))
                            render = reportViewer.LocalReport.ListRenderingExtensions().FirstOrDefault((r) => r.Name.Equals("WORD"));
                        //else if (ext.Equals("docx"))
                        //    render = this._reportViewer.LocalReport.ListRenderingExtensions().FirstOrDefault((r) => r.Name.Equals("WORDOPENXML"));
                        if (render != null)
                            reportViewer.ExportDialog(render, devInfo, file.FileName);
                        else
                            System.Windows.MessageBox.Show("导出失败!");
                    }
                }));
            }
        }

        /// <summary>
        /// 打印
        /// </summary>
        /// <param name="reportViewer"></param>
        public static void Printeport(ReportViewer reportViewer)
        {
            if (reportViewer.LocalReport.DataSources.Count != 0)
            {
                reportViewer.PrintDialog();
            }
        }
    }
}