好久没写原创了，今天心血来潮，打算写一篇，关于特定的知识点之前写过很多，今天呢就写一篇综合性的偏应用的一个小的项目实战.

01

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重要的知识点

本篇内容基于CM框架编写，涉及以下知识点：

① CM框架下一个控件附加多个事件：

cal:Message.Attach="[Event MouseRightButtonDown]=[datagrid_MouseRightButtonDown($source,$eventArgs)];[Event LoadingRow]=[DG_LoadingRow($source,$eventArgs)]"

②datagrid添加行号：

DG.LoadingRow += new EventHandler<DataGridRowEventArgs>(DG_LoadingRow);

public void DG_LoadingRow(object sender, DataGridRowEventArgs e){e.Row.Header = e.Row.GetIndex() + 1;}

③datagrid右键点击添加菜单：

public void datagrid_MouseRightButtonDown(object sender, MouseButtonEventArgs e){dGrid = (System.Windows.Controls.DataGrid)sender;menu1 = new System.Windows.Controls.ContextMenu();System.Windows.Controls.MenuItem menuitemFunc1 = new System.Windows.Controls.MenuItem();System.Windows.Controls.MenuItem menuitemFunc2 = new System.Windows.Controls.MenuItem();System.Windows.Controls.MenuItem menuitemFunc3 = new System.Windows.Controls.MenuItem();menuitemFunc1.Header = "移动到此位置";menuitemFunc2.Header = "删除此行信息";menuitemFunc3.Header = "导出数据";menuitemFunc1.Click += MoveToPostion_Click;menuitemFunc2.Click += DeleteRow_Click;menuitemFunc3.Click += ExportData_Click;menu1.Items.Add(menuitemFunc1);menu1.Items.Add(menuitemFunc2);menu1.Items.Add(menuitemFunc3);menu1.StaysOpen = true;}

④浏览选择文件路径和浏览选择文件

public void Load(){//lblStr = "you hit mine! i am lable";OpenFileDialog openFileDialog1 = new OpenFileDialog();openFileDialog1.Filter = "图片|*.jpg;*.jpeg;*.bmp;*.png;*.gif";openFileDialog1.FilterIndex = 1;//当前使用第二个过滤字符串openFileDialog1.RestoreDirectory = true;//对话框关闭时恢复原目录openFileDialog1.Multiselect = false;openFileDialog1.Title = "选择文件";try{if (openFileDialog1.ShowDialog() == DialogResult.OK){System.Windows.MessageBox.Show("你选择了文件" + openFileDialog1.FileName);}}catch (Exception ex){Console.WriteLine(ex);}}

public void BrowseSavePath(){FolderBrowserDialog browserDialog = new FolderBrowserDialog();browserDialog.Description = "请选择路径";try{if (browserDialog.ShowDialog() == DialogResult.OK){if (string.IsNullOrEmpty(browserDialog.SelectedPath)){System.Windows.MessageBox.Show("文件夹路径不能为空");return;}BrowseDataSavePath = browserDialog.SelectedPath;DataExport(BrowseDataSavePath);}}catch (Exception ex){Console.WriteLine(ex);}}

⑤wpf图片显示的两种操作方式；

方式1：

/// <summary>/// 图片加载显示完成后释放/// </summary>/// <param name="imagePath"></param>/// <returns></returns>public static BitmapImage LoadImageFreeze(string imagePath){try{BitmapImage bitmap = new BitmapImage();if (File.Exists(imagePath)){bitmap.BeginInit();bitmap.CacheOption = BitmapCacheOption.OnLoad;using (Stream ms = new MemoryStream(File.ReadAllBytes(imagePath))){bitmap.StreamSource = ms;bitmap.EndInit();bitmap.Freeze();}}return bitmap;}catch (Exception){return null;}}

方式2：

/// <summary>/// bitmap转换成imagesoure/// </summary>/// <param name="hObject"></param>/// <returns></returns>[System.Runtime.InteropServices.DllImport("gdi32.dll")]public static extern bool DeleteObject(IntPtr hObject);public static ImageSource ChangeBitmapToImageSource(Bitmap bitmap){IntPtr hBitmap = bitmap.GetHbitmap();ImageSource wpfBitmap = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(hBitmap,IntPtr.Zero,Int32Rect.Empty,BitmapSizeOptions.FromEmptyOptions());if (!DeleteObject(hBitmap)){throw new System.ComponentModel.Win32Exception();}return wpfBitmap;}

⑥datagrid添加RadioButton并实现互斥

<DataGridTemplateColumn  Header="Radio" MinWidth="50"><DataGridTemplateColumn.CellTemplate><DataTemplate><RadioButton IsChecked="{Binding GroupSelect,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}" GroupName="Mutex" IsEnabled="{Binding RadioEnabled}" /></DataTemplate></DataGridTemplateColumn.CellTemplate></DataGridTemplateColumn>

02

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操作演示

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