文件打开功能。未实现文件类型保存

CalendarNotepad/Models/PlusFileUnit.cs

@@ -13,5 +13,9 @@
         /// 文件内容
         /// </summary>
         public byte[]? FileContent { get; set; }
+        /// <summary>
+        /// 文件类型 .jpj .txt等
+        /// </summary>
+        public string? FileType { get; set; }
     }
 }

CalendarNotepad/WorkMain.Designer.cs

@@ -77,6 +77,7 @@
             panel2 = new Panel();
             panel3 = new Panel();
             OpenFileDlg = new OpenFileDialog();
+            打开ToolStripMenuItem = new ToolStripMenuItem();
             tabControl1.SuspendLayout();
             tpWorkManage.SuspendLayout();
             ((System.ComponentModel.ISupportInitialize)splitContainer1).BeginInit();
@@ -419,35 +420,35 @@
             // 
             // cms_FileList
             // 
-            cms_FileList.Items.AddRange(new ToolStripItem[] { 删除ToolStripMenuItem,导入ToolStripMenuItem,下载ToolStripMenuItem,更名ToolStripMenuItem });
+            cms_FileList.Items.AddRange(new ToolStripItem[] { 删除ToolStripMenuItem,导入ToolStripMenuItem,下载ToolStripMenuItem,更名ToolStripMenuItem,打开ToolStripMenuItem });
             cms_FileList.Name = "contextMenuStrip1";
-            cms_FileList.Size = new Size(101,92);
+            cms_FileList.Size = new Size(181,136);
             // 
             // 删除ToolStripMenuItem
             // 
             删除ToolStripMenuItem.Name = "删除ToolStripMenuItem";
-            删除ToolStripMenuItem.Size = new Size(100,22);
+            删除ToolStripMenuItem.Size = new Size(180,22);
             删除ToolStripMenuItem.Text = "删除";
             删除ToolStripMenuItem.Click += 删除ToolStripMenuItem_Click;
             // 
             // 导入ToolStripMenuItem
             // 
             导入ToolStripMenuItem.Name = "导入ToolStripMenuItem";
-            导入ToolStripMenuItem.Size = new Size(100,22);
+            导入ToolStripMenuItem.Size = new Size(180,22);
             导入ToolStripMenuItem.Text = "导入";
             导入ToolStripMenuItem.Click += 导入ToolStripMenuItem_Click;
             // 
             // 下载ToolStripMenuItem
             // 
             下载ToolStripMenuItem.Name = "下载ToolStripMenuItem";
-            下载ToolStripMenuItem.Size = new Size(100,22);
+            下载ToolStripMenuItem.Size = new Size(180,22);
             下载ToolStripMenuItem.Text = "下载";
             下载ToolStripMenuItem.Click += 下载ToolStripMenuItem_Click;
             // 
             // 更名ToolStripMenuItem
             // 
             更名ToolStripMenuItem.Name = "更名ToolStripMenuItem";
-            更名ToolStripMenuItem.Size = new Size(100,22);
+            更名ToolStripMenuItem.Size = new Size(180,22);
             更名ToolStripMenuItem.Text = "更名";
             更名ToolStripMenuItem.Click += 更名ToolStripMenuItem_Click;
             // 
@@ -629,6 +630,13 @@
             // 
             OpenFileDlg.Multiselect = true;
             // 
+            // 打开ToolStripMenuItem
+            // 
+            打开ToolStripMenuItem.Name = "打开ToolStripMenuItem";
+            打开ToolStripMenuItem.Size = new Size(180,22);
+            打开ToolStripMenuItem.Text = "打开";
+            打开ToolStripMenuItem.Click += 打开ToolStripMenuItem_Click;
+            // 
             // WorkMain
             // 
             AutoScaleDimensions = new SizeF(7F,17F);
@@ -727,5 +735,6 @@
         private Button bt_m_dbshc;
         private Label label5;
         private ToolStripMenuItem 更名ToolStripMenuItem;
+        private ToolStripMenuItem 打开ToolStripMenuItem;
     }
 }

CalendarNotepad/WorkMain.cs

@@ -390,6 +390,52 @@ namespace CalendarNotepad
             MessageBox.Show("文件名修改完成");
         }
 
+        private void 打开ToolStripMenuItem_Click(object sender,EventArgs e) {
+            var items = this.FileListView.SelectedItems;
+            if(items.Count == 0) {
+                MessageBox.Show("必须要选择打开的文件");
+                return;
+            }
+            if(items.Count > 1) {
+                MessageBox.Show("不能同时打开对多个文件，只能选择一个");
+                return;
+            }
+            var item = items[0];
+            var fk = item.SubItems[2].Text;
+            var fileNam = item.Text;
+            var qu = this.Db.Queryable<PlusFileUnit>()
+                .Where(a => a.FileId == fk)
+                .Select(a => a.FileContent)
+                .ToList();
+            if(!qu.Any() || qu.First() == null) {
+                MessageBox.Show("打开文件错误，没有找到文件，需要重新导入文件！");
+                return;
+            }
+            var fc = qu.First();
+            var tempPath = Path.GetTempPath();
+            var ran = new Random();
+            var fn = ran.NextInt64(10000,99999).ToString();
+            var path = Path.Combine(tempPath,"CalendarNotepadFile");
+            if(!Directory.Exists(path)) {
+                Directory.CreateDirectory(path);
+            }
+            var fullPath = Path.Combine(path,fn + ".txt");
+            using(var fs = File.Create(fullPath,fc.Length)) {
+                fs.Write(fc,0,fc.Length);
+                fs.Close();
+            }
+            Process process = new Process();
+            process.StartInfo.FileName = fullPath;
+            process.StartInfo.UseShellExecute = true;
+            process.EnableRaisingEvents = true;
+            process.Exited += new EventHandler((s,e) => {
+                File.Delete(fullPath);
+            });
+
+            // 启动进程
+            process.Start();
+        }
+
         /// <summary>
         /// 当前记录日志的键
         /// </summary>