ホテル管理システム
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yesterday 1a1c8e71fcd14858f595029f089b2d4a00202b32
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using ClosedXML.Excel;
using HotelPms.Share.Windows.Util;
using Microsoft.Web.WebView2.Core;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Security.Policy;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
 
namespace HotelPms.SourceFactory
{
    public partial class FormEdge : FormBase
    {
        public FormEdge()
        {
            InitializeComponent();
            //webView21.Source = new Uri("https://www.google.co.jp");
            webView21.CoreWebView2InitializationCompleted += new System.EventHandler<Microsoft.Web.WebView2.Core.CoreWebView2InitializationCompletedEventArgs>(webView21_CoreWebView2InitializationCompleted);
        }
 
        private string ConvertExcelToHtml(string filePath)
        {
            var sb = new StringBuilder();
            sb.AppendLine("<html><head><meta charset='UTF-8'><style>table, th, td { border: 1px solid black; border-collapse: collapse; padding: 4px; }</style></head><body>");
 
            using var workbook = new XLWorkbook(filePath);
            var worksheet = workbook.Worksheet(1);
            var range = worksheet.RangeUsed();
 
            sb.AppendLine("<table>");
            foreach (var row in range.Rows())
            {
                sb.AppendLine("<tr>");
                foreach (var cell in row.Cells())
                {
                    sb.Append("<td>").Append(cell.GetValue<string>()).Append("</td>");
                }
                sb.AppendLine("</tr>");
            }
            sb.AppendLine("</table></body></html>");
            return sb.ToString();
        }
 
 
        private void button1_Click(object sender, EventArgs e)
        {
            if (webView21 != null && webView21.CoreWebView2 != null)
            {
                //string html = ConvertExcelToHtml(@"D:\Pms\HotelPms\HotelPms.SourceFactory\PivotTables.xlsx");
                //string tempPath = Path.Combine(Path.GetTempPath(), "excel_preview.html");
                //File.WriteAllText(tempPath, html, Encoding.UTF8);
                //webView21.Source = new Uri(tempPath);
 
                var bytes = File.ReadAllBytes(@"D:\Pms\HotelPms\HotelPms.SourceFactory\PivotTables.xlsx");
                var base64 = Convert.ToBase64String(bytes);
                webView21.CoreWebView2.ExecuteScriptAsync($"loadExcelFromBase64('{base64}')");
                //webView21.CoreWebView2.Navigate(textBox1.Text);
            }
        }
 
        private string GenerateSheetJSTemplate()
        {
            return @"<!DOCTYPE html>
<html>
<head>
    <meta charset='UTF-8'>
    <script src='https://cdnjs.cloudflare.com/ajax/libs/xlsx/0.18.5/xlsx.full.min.js'></script>
</head>
<body>
    <h2>Excel Preview (SheetJS)</h2>
    <select id='sheetSelector' onchange='renderSheet()'></select>
    <div id='excelContent'></div>
 
    <script>
        let workbook = null;
 
        function loadExcelFromBase64(base64) {
            const binary = atob(base64);
            const len = binary.length;
            const bytes = new Uint8Array(len);
            for (let i = 0; i < len; i++) {
                bytes[i] = binary.charCodeAt(i);
            }
            workbook = XLSX.read(bytes, { type: 'array' });
 
            const selector = document.getElementById('sheetSelector');
            selector.innerHTML = '';
            workbook.SheetNames.forEach(name => {
                const opt = document.createElement('option');
                opt.value = name;
                opt.text = name;
                selector.appendChild(opt);
            });
            renderSheet();
        }
 
        function renderSheet() {
            const name = document.getElementById('sheetSelector').value;
            const ws = workbook.Sheets[name];
            const html = XLSX.utils.sheet_to_html(ws);
            document.getElementById('excelContent').innerHTML = html;
        }
    </script>
</body>
</html>";
        }
 
        //private bool bInitialized = false;
 
        private void webView21_CoreWebView2InitializationCompleted(object sender, Microsoft.Web.WebView2.Core.CoreWebView2InitializationCompletedEventArgs e)
        {
            //bInitialized = true;
            webView21.CoreWebView2.NavigationCompleted += webView21_NavigationCompleted;
            webView21.CoreWebView2.AddWebResourceRequestedFilter("*", Microsoft.Web.WebView2.Core.CoreWebView2WebResourceContext.All);
            webView21.CoreWebView2.WebResourceRequested += webView21_WebResourceRequested;
            webView21.CoreWebView2.WebResourceResponseReceived += webView21_WebResourceResponseReceived;
 
            string html = GenerateSheetJSTemplate();
            string templatePath = Path.Combine(Path.GetTempPath(), "excel_viewer_sheetjs.html");
            File.WriteAllText(templatePath, html);
            webView21.Source = new Uri(templatePath);
        }
 
        private void webView21_NavigationCompleted(object sender, Microsoft.Web.WebView2.Core.CoreWebView2NavigationCompletedEventArgs e)
        {
            System.Diagnostics.Debug.Print("NavigationCompleted");
        }
        private void webView21_WebResourceRequested(object sender, Microsoft.Web.WebView2.Core.CoreWebView2WebResourceRequestedEventArgs e)
        {
            System.Diagnostics.Debug.Print("WebResourceRequested");
            System.Diagnostics.Debug.Print(e.Request.Uri);
            // Add other Debug.Print...
        }
        private void webView21_WebResourceResponseReceived(object sender, Microsoft.Web.WebView2.Core.CoreWebView2WebResourceResponseReceivedEventArgs e)
        {
            System.Diagnostics.Debug.Print("WebResourceResponseReceived");
            // Add other Debug.Print...
        }
 
 
        private async void FormEdge_Load(object sender, EventArgs e)
        {
            LoadingObj.ShowWaiting();
            await webView21.EnsureCoreWebView2Async();
            await webView21.CoreWebView2.Profile.ClearBrowsingDataAsync();
            //webView21.CoreWebView2.Navigate("http://comtab.jp");
            LoadingObj.CloseWaiting();
        }
 
        private string url = string.Empty;  
 
        private void button2_Click(object sender, EventArgs e)
        {
            if (openFileDialog1.ShowDialog() != DialogResult.OK) { return; }
            url = openFileDialog1.FileName;
 
            LoadingObj.ShowWaiting();
            webView21.CoreWebView2.Navigate(url);
            LoadingObj.CloseWaiting();
        }
 
        private async void button3_Click(object sender, EventArgs e)
        {
            CoreWebView2PrintSettings printSettings = webView21.CoreWebView2.Environment.CreatePrintSettings();
            //printSettings.Orientation = CoreWebView2PrintOrientation.Landscape;
            //printSettings.PrinterName = "Microsoft Print to PDF";
            //printSettings.Orientation = CoreWebView2PrintOrientation.Portrait;
            
            printSettings.PrinterName = "RICOH imagio MP C2800";
            printSettings.MediaSize = CoreWebView2PrintMediaSize.Custom;
            printSettings.PageHeight = 11.69; // A4 paper size
            printSettings.PageWidth = 8.27;
            printSettings.MarginLeft = 0;
            printSettings.MarginTop = 0;
            //printSettings.ShouldPrintBackgrounds = true;
            //var result = await webView21.CoreWebView2.PrintToPdfAsync(url, printSettings);
            var result = await webView21.CoreWebView2.PrintAsync(printSettings);
        }
 
        private void button4_Click(object sender, EventArgs e)
        {
            webView21.CoreWebView2.ExecuteScriptAsync("window.print();");
        }
    }
}