注意加载数据需要在 Loaded 事件里面。因为表格还没加载完毕时是无法显示数据的。
更新完 dg.ItemsSource 对应的 List 之后，表格会自动更新，增加和删除都可以
自动生成 根据数据源字段自动生成列
<Grid Margin="10"> <DataGrid Name="dgSimple"></DataGrid> </Grid> List<User> users = new List<User>(); users.Add(new User() { dbId=11, Id = 1, Name = "John Doe", Birthday = new DateTime(1971, 7, 23) }); users.Add(new User() { dbId = 12, Id = 2, Name = "Jane Doe", Birthday = new DateTime(1974, 1, 17) }); users.Add(new User() { dbId = 13, Id = 3, Name = "Sammy Doe", Birthday = new DateTime(1991, 9, 2) }); dgSimple.ItemsSource = users; public class User { public int dbId { get; set; } public int Id { get; set; } public string Name { get; set; } public DateTime Birthday { get; set; } }
删除一行 private void btn_delete_rows_Click(object sender, RoutedEventArgs e) { int count = dg.SelectedItems.Count; for (int i = 0; i < count; i++) { // 这里 SelectedItems 的索引会有变化。所以只要计数每次删除第 0 个就可以了 var item = dg.SelectedItems[0] as Model_prog_coeff; App.db.Delete_model<Model_prog_coeff>(item, item.ID); for (var j = 0; j < App.db.m_coeffs.Count; ++j) { if (App.db.m_coeffs[j].ID == item.ID) { App.db.m_coeffs.RemoveAt(j); } } } }
右键菜单 <DataGrid> <DataGrid.ContextMenu> <ContextMenu> <MenuItem Header="Click Me" Click="MenuItem_Click" /> </ContextMenu> </DataGrid.ContextMenu> </DataGrid>
选择设置 DataGrid 的选择单位有3种，整行、单个 Cell 、单个 Cell 和 点行头选择整行。DataGrid 缺省状态是整行
private void cbbSelectMode_SelectionChanged(object sender, SelectionChangedEventArgs e) { dtgShow.SelectionUnit = (DataGridSelectionUnit)cbbSelectMode.SelectedValue; } <ComboBox Name="cbbSelectMode" Margin="2" SelectionChanged="cbbSelectMode_SelectionChanged"/> // 禁止选择多行 SelectionMode="Single"
只读 xaml 里面 Mode=OneWay 就可以了
禁止双击编辑行为：IsReadOnly=”True”
选择当前行 var item = dg.SelectedItem as Model_sensor; if ((null != item) && (item.driver != "" && item.driver != null) && (item.name != "" && item.name != null)) { if (item.ID == 0) { App.db.Insert_model<Model_sensor>(item); } else { App.db.Update_model<Model_sensor>(item); } }
选择行事件 <DataGrid Name="dgScreenRecords" DockPanel.Dock="Left" Width="300" AutoGenerateColumns="False" SelectionChanged="dgScreenRecords_SelectionChanged" IsReadOnly="True" CanUserSortColumns="True" LoadingRow="dg_LoadingRow" CanUserAddRows="False"> private void dgScreenRecords_SelectionChanged(object sender, SelectionChangedEventArgs e) { DataGrid dataGrid = sender as DataGrid; DataGridRow row = (DataGridRow)dataGrid.ItemContainerGenerator.ContainerFromIndex(dataGrid.SelectedIndex); var sr = (Model_Screen_record)row.Item; }
根据单元格信息设置行颜色 <DataGrid ItemsSource="{Binding YourItemsSource}"> <DataGrid.RowStyle> <Style TargetType="DataGridRow"> <Style.Triggers> <DataTrigger Binding="{Binding State}" Value="State1"> <Setter Property="Background" Value="Red"></Setter> </DataTrigger> <DataTrigger Binding="{Binding State}" Value="State2"> <Setter Property="Background" Value="#95F68D0E"></Setter> </DataTrigger> </Style.Triggers> </Style> </DataGrid.RowStyle> </DataGrid>
列控件 DataGridTextColumn
样例 <Grid x:Name="grid_main"> <DataGrid Name="dg" AutoGenerateColumns="False" CanUserSortColumns="True" CanUserAddRows="False"> <DataGrid.Columns> <DataGridTextColumn Binding="{Binding UserName, UpdateSourceTrigger=PropertyChanged}" Width="100" Header="学生姓名"/> <DataGridTextColumn Binding="{Binding ClassName, UpdateSourceTrigger=PropertyChanged}" Width="100" Header="班级名称"/> <DataGridTextColumn Binding="{Binding Address, UpdateSourceTrigger=PropertyChanged}" Width="200" Header="地址"/> <DataGridTemplateColumn Header="操作" Width="100" > <DataGridTemplateColumn.CellTemplate> <DataTemplate> <StackPanel Orientation="Horizontal" VerticalAlignment="Center" HorizontalAlignment="Left"> <Button Content="编辑" Click="Button_edit"/> <Button Margin="8 0 0 0" Content="删除" /> </StackPanel> </DataTemplate> </DataGridTemplateColumn.CellTemplate> </DataGridTemplateColumn> </DataGrid.Columns> </DataGrid> </Grid> public MainWindow() { InitializeComponent(); List<Student> students = new List<Student>(); students.Add(new Student() { UserName = "小王", ClassName = "高二三班", Address = "广州市" }); students.Add(new Student() { UserName = "小李", ClassName = "高三六班", Address = "清远市" }); students.Add(new Student() { UserName = "小张", ClassName = "高一一班", Address = "深圳市" }); students.Add(new Student() { UserName = "小黑", ClassName = "高一三班", Address = "赣州市" }); dg.ItemsSource = students; ... } public class Student { public string UserName { get; set; } public string ClassName { get; set; } public string Address { get; set; } }
splitter <Window x:Class="WpfTutorialSamples.Panels.GridSplitterSample" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="GridSplitterSample" Height="300" Width="300"> <Grid> <Grid.ColumnDefinitions> <ColumnDefinition Width="*" /> <ColumnDefinition Width="5" /> <ColumnDefinition Width="*" /> </Grid.ColumnDefinitions> <TextBlock FontSize="55" HorizontalAlignment="Center" VerticalAlignment="Center" TextWrapping="Wrap">Left side</TextBlock> <GridSplitter Grid.Column="1" Width="5" HorizontalAlignment="Stretch" /> <TextBlock Grid.Column="2" FontSize="55" HorizontalAlignment="Center" VerticalAlignment="Center" TextWrapping="Wrap">Right side</TextBlock> </Grid> </Window>
事件 xaml 里面添加属性
自动添加序号 // xaml 添加属性 LoadingRow="dg_LoadingRow" private void dtgShow_LoadingRow(object sender, DataGridRowEventArgs e) { e.Row.Header = e.Row.GetIndex() + 1; }
对齐行号
<DataGrid x:Name="dataGrid" AutoGenerateColumns="False" LoadingRow="OnLoadingRow"> <DataGrid.Columns> <DataGridTextColumn Header="Id" Binding="{Binding Id}"/> <DataGridTextColumn Header="Name" Binding="{Binding Name}"/> </DataGrid.Columns> <DataGrid.RowHeaderTemplate> <DataTemplate> <Label HorizontalAlignment="Center" Content="{Binding RelativeSource={RelativeSource AncestorType=DataGridRow}, Path=Header}"/> </DataTemplate> </DataGrid.RowHeaderTemplate> </DataGrid>
默认选中行 <DataGrid Name="dg" Grid.Row="1" AutoGenerateColumns="False" CanUserSortColumns="True" SelectionUnit="FullRow" AlternationCount="2" CanUserAddRows="False" LoadingRow="dg_LoadingRow" RowEditEnding="dg_RowEditEnding" Loaded="dg_Loaded" AlternatingRowBackground="#99CCFF"> private void dg_Loaded(object sender, RoutedEventArgs e) { dg.SelectedIndex = 0; dg.Focus(); }
保持高亮 <DataGrid.Resources> <Style TargetType="DataGridRow"> <Style.Resources> <SolidColorBrush x:Key="{x:Static SystemColors.InactiveSelectionHighlightBrushKey}" Color="#4C7899"/> </Style.Resources> </Style> </DataGrid.Resources> // 代码实现 dg.RowStyle = new Style(); dg.RowStyle.Resources.Add(SystemColors.InactiveSelectionHighlightBrushKey, new SolidColorBrush(Color.FromArgb(0xff,0x33,0x99,0xff))); dg.RowStyle.Resources.Add(SystemColors.InactiveSelectionHighlightTextBrushKey, new SolidColorBrush(System.Windows.Media.Colors.White));
获取选择行 var item = dg.SelectedItem as Model_master; if (item == null) { dg_attr.ItemsSource = null; dg_preelaboration.ItemsSource = null; return; }
int count = dg.SelectedItems.Count; for (int i = 0; i < count; i++) { var item = dg.SelectedItems[i] as Model_coeff; if (item == null) continue; App.db.Delete_model<Model_coeff>(item, item.ID); }
保存数据到数据库 // 绑定数据时，UpdateSourceTrigger 指定这个，然后在 RowEditEnding 回调中拿到修改后的数据。 <DataGridTextColumn Header="ID" Binding="{Binding EmpNo, UpdateSourceTrigger=PropertyChanged}"/> // use code implement private void load_coeff() { dg.Columns.Clear();//每次清空列集合 List<Tuple<string, string>> col_list = new List<Tuple<string, string>>(); col_list.Add(Tuple.Create("序号", "no")); col_list.Add(Tuple.Create("名称", "name")); col_list.Add(Tuple.Create("说明", "comment")); col_list.Add(Tuple.Create("数值", "value")); foreach (var col in col_list) { DataGridTextColumn textBoxColumn = new DataGridTextColumn(); textBoxColumn.Header = col.Item1; //定义每一列的宽度相同 textBoxColumn.Width = new DataGridLength(dg.ActualWidth, DataGridLengthUnitType.Star); textBoxColumn.MinWidth = 50; //定义每一列的最小宽度 Binding binding = new Binding();//设置每一列的binding binding.Path = new PropertyPath(col.Item2); if (col.Item2 == "no") { binding.Mode = BindingMode.OneWay; }else { binding.Mode = BindingMode.TwoWay; } binding.UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged; textBoxColumn.Binding = binding; dg.Columns.Add(textBoxColumn);//将列添加到集合中 } dg.ItemsSource = null; dg.ItemsSource = m_db.list_coeff(); }
根据列宽调整大小 private void Load_sensor() { dg.Columns.Clear();//每次清空列集合 List<Tuple<string, string>> col_list = new List<Tuple<string, string>>(); col_list.Add(Tuple.Create("名称", "name")); col_list.Add(Tuple.Create("说明", "comment")); foreach (var col in col_list) { DataGridTextColumn dgColumn = new DataGridTextColumn(); dgColumn.Header = col.Item1; //定义每一列的宽度相同 if(col.Item1 == "说明" || col.Item1 == "名称") { dgColumn.Width = new DataGridLength(dg.ActualWidth, DataGridLengthUnitType.SizeToCells); } else { dgColumn.Width = new DataGridLength(dg.ActualWidth, DataGridLengthUnitType.Star); } dgColumn.MinWidth = 50; //定义每一列的最小宽度 Binding binding = new Binding();//设置每一列的binding binding.Path = new PropertyPath(col.Item2); binding.Mode = BindingMode.TwoWay; binding.UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged; dgColumn.Binding = binding; dg.Columns.Add(dgColumn);//将列添加到集合中 } dg.ItemsSource = null; dg.ItemsSource = m_db.List_sensor(); }
添加 combobox TechNet
添加动态数据。 <Application x:Class="wpf_ComboBoxColumn.App" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="clr-namespace:wpf_ComboBoxColumn" StartupUri="MainWindow.xaml"> <Application.Resources> <local:ColourCollection x:Key="ColourSource"> <!--<local:SimpleColour ColourString="Yellow" Id="1"/> <local:SimpleColour ColourString="Blue" Id="2"/> <local:SimpleColour ColourString="Red" Id="3"/> <local:SimpleColour ColourString="Green" Id="4"/> <local:SimpleColour ColourString="Purple" Id="5"/>--> </local:ColourCollection> </Application.Resources> </Application> public class Model_drivers { [PrimaryKey, AutoIncrement] public int ID { get; set; } public string name { get; set; } } //ColourCollection.cs using System; using System.Collections.Generic; using System.Collections.ObjectModel; using System.Linq; using System.Text; using System.Threading.Tasks; namespace wpf_ComboBoxColumn { public class ColourCollection : ObservableCollection<SimpleColour> { } } //SimpleColour.cs using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Media; namespace wpf_ComboBoxColumn { public class SimpleColour { public int ID { get; set; } public string ColourString { get; set; } } } <DataGrid ItemsSource="{Binding Medias}" AutoGenerateColumns="False"> <DataGrid.Columns> <DataGridTextColumn Header="Type" Binding="{Binding MediaType}" /> <DataGridTextColumn Header="Container" Binding="{Binding Container}" /> <DataGridTextColumn Header="Volume" Binding="{Binding Volume}" /> <DataGridComboBoxColumn Header="ComboboxColumn" ItemsSource="{DynamicResource ColourSource}" SelectedValueBinding="{Binding ColourId, UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}" SelectedValuePath="ID" DisplayMemberPath="ColourString" > </DataGridComboBoxColumn> <DataGridTemplateColumn Header="TemplateColumn"> <DataGridTemplateColumn.CellTemplate> <DataTemplate> <ComboBox ItemsSource="{Binding DataContext.Colours, RelativeSource={RelativeSource AncestorType=local:MainWindow}}" SelectedValuePath="MColour.Id" SelectedValue="{Binding ColourId, UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}" > <ComboBox.ItemTemplate> <DataTemplate> <Rectangle Fill="{Binding ColourBrush}" Height="30" Width="30"/> </DataTemplate> </ComboBox.ItemTemplate> </ComboBox> </DataTemplate> </DataGridTemplateColumn.CellTemplate> </DataGridTemplateColumn> </DataGrid.Columns> </DataGrid>
Template 添加数据 <DataGridTemplateColumn Header="驱动"> <DataGridTemplateColumn.CellTemplate> <DataTemplate> <ComboBox ItemsSource="{Binding DataContext.collectionDriver, RelativeSource={RelativeSource AncestorType=local:UCSensor}}" IsEditable="True" SelectedValue="{Binding DriverID, UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}" SelectedValuePath="DriverID" DisplayMemberPath="Name" SelectionChanged="ComboBox_SelectionChanged" /> </DataTemplate> </DataGridTemplateColumn.CellTemplate> </DataGridTemplateColumn> public class Model_driver { [PrimaryKey, AutoIncrement] public int DriverID { get; set; } public string DriverName { get; set; } public string Version { get; set; } public string Comment { get; set; } // 是否启用 public bool IsEnable { get; set; } } public class NotifyUIBase : INotifyPropertyChanged { // Very minimal implementation of INotifyPropertyChanged matching msdn // Note that this is dependent on .net 4.5+ because of CallerMemberName public event PropertyChangedEventHandler PropertyChanged; public void RaisePropertyChanged([CallerMemberName] String propertyName = "") { if (PropertyChanged != null) { PropertyChanged(this, new PropertyChangedEventArgs(propertyName)); } } } public class UCMeasureStepViewModel : NotifyUIBase { public ObservableCollection<Model_driver> collectionDriver { get; set; } public UCMeasureStepViewModel() { collectionDriver = new ObservableCollection<Model_driver>(); if (App.db.m_drivers.Count == 0) { App.db.List_driver(); } foreach (var item in App.db.m_drivers) { collectionDriver.Add(item); } RaisePropertyChanged("collectionDriver"); } }
多行编辑 <DataGridTextColumn Binding="{Binding Formular, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" MinWidth="200" Width="Auto" Header="公式"> <DataGridTextColumn.ElementStyle> <Style TargetType="TextBlock"> <Setter Property="TextWrapping" Value="Wrap" /> </Style> </DataGridTextColumn.ElementStyle> <DataGridTextColumn.EditingElementStyle> <Style TargetType="TextBox"> <Setter Property="TextWrapping" Value="Wrap" /> <Setter Property="AcceptsReturn" Value="true" /> </Style> </DataGridTextColumn.EditingElementStyle> </DataGridTextColumn>
输入小数点 添加 checkbox // xaml <DataGrid Name="dg" Grid.Row="1" AutoGenerateColumns="False" CanUserSortColumns="True" SelectionUnit="FullRow" AlternationCount="2" CanUserAddRows="True" LoadingRow="dg_LoadingRow" RowEditEnding="dg_RowEditEnding"> <DataGrid.Columns> <DataGridTextColumn Binding="{Binding name}" Width="Auto" Header="名称"/> <DataGridTextColumn Binding="{Binding comment}" Width="Auto" Header="说明"/> <DataGridTextColumn Binding="{Binding driver}" Width="Auto" Header="驱动"/> <DataGridTemplateColumn Header="启用" Width="40"> <DataGridTemplateColumn.CellTemplate> <DataTemplate> <CheckBox Name="chk_isEnable" IsChecked="{Binding isEnable, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" Click="chk_isEnable_Click"></CheckBox> </DataTemplate> </DataGridTemplateColumn.CellTemplate> </DataGridTemplateColumn> <DataGridTextColumn Binding="{Binding channel}" Width="Auto" Header="通道"/> <DataGridTextColumn Binding="{Binding lower}" Width="Auto" Header="下限"/> <DataGridTextColumn Binding="{Binding upper}" Width="Auto" Header="上限"/> <DataGridTextColumn Binding="{Binding test_type}" Width="Auto" Header="测试类型"/> <DataGridTextColumn Binding="{Binding gain}" Width="Auto" Header="增益"/> <DataGridTextColumn Binding="{Binding offset}" Width="Auto" Header="偏置"/> <DataGridTextColumn Binding="{Binding direction}" Width="Auto" Header="方向"/> <DataGridTextColumn Binding="{Binding precision}" Width="Auto" Header="显示精度"/> </DataGrid.Columns> </DataGrid> // code private void chk_isEnable_Click(object sender, RoutedEventArgs e) { // 获取当前选中行，更新 var result = (sender as CheckBox).IsChecked; var item = dg.SelectedItem as Model_sensor; if ((item.driver != "" && item.driver != null) && item.name != "" && item.name != null) { if (item.ID == 0) { App.db.Insert_model<Model_sensor>(item); } else { App.db.Update_model<Model_sensor>(item); } } }
添加 checkbox 全选框 <DataGrid Name="dg" Grid.Row="2" AutoGenerateColumns="False" CanUserSortColumns="True" SelectionUnit="FullRow" AlternationCount="2" CanUserAddRows="False" LoadingRow="dg_LoadingRow" AlternatingRowBackground="#99CCFF" > <DataGrid.Columns> <DataGridTemplateColumn Width="60"> <DataGridTemplateColumn.Header> <CheckBox x:Name="chk_header_upload" Checked="chk_header_upload_Checked" Unchecked="chk_header_upload_Unchecked">上传</CheckBox> </DataGridTemplateColumn.Header> <DataGridTemplateColumn.CellTemplate> <DataTemplate> <CheckBox Name="chk_isUpload" IsChecked="{Binding isUpload, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" ></CheckBox> </DataTemplate> </DataGridTemplateColumn.CellTemplate> </DataGridTemplateColumn> <DataGridTextColumn Binding="{Binding DateTime, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" Width="Auto" Header="日期时间"/> <DataGridTextColumn Binding="{Binding Batch, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" Width="Auto" Header="批次"/> <DataGridTextColumn Binding="{Binding MeasureInfo, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" Width="Auto" Header="测量项"/> </DataGrid.Columns> </DataGrid> private void chk_header_upload_Checked(object sender, RoutedEventArgs e) { foreach(var it in App.db.m_manualUpload) { it.isUpload = true; } dg.ItemsSource = null; dg.ItemsSource = App.db.m_manualUpload; } private void chk_header_upload_Unchecked(object sender, RoutedEventArgs e) { foreach (var it in App.db.m_manualUpload) { it.isUpload = false; } dg.ItemsSource = null; dg.ItemsSource = App.db.m_manualUpload; }
‘DeferRefresh’ is not allowed during an AddNew or EditItem transaction 解决方法如下
void DataGrid_Unloaded(object sender, RoutedEventArgs e) { var grid = (DataGrid)sender; grid.CommitEdit(DataGridEditingUnit.Row, true); }
查找控件 <DataGrid x:Name="dg" Grid.Row="1" AutoGenerateColumns="False" CanUserSortColumns="True" SelectionUnit="FullRow" AlternationCount="2" CanUserAddRows="False" LoadingRow="dg_LoadingRow" RowEditEnding="dg_RowEditEnding" AlternatingRowBackground="#99CCFF" Loaded="dg_Loaded"> <DataGrid.Columns> <DataGridTemplateColumn Header="显示精度"> <DataGridTemplateColumn.CellTemplate> <DataTemplate> <ComboBox ItemsSource="{Binding DataContext.collectionSensorPrecise, RelativeSource={RelativeSource AncestorType=local:UCSensor}}" SelectedValue="{Binding Precision, UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}" IsEditable="True" DropDownOpened="cmb_driver_DropDownOpened" x:Name="cmb_precision" SelectionChanged="ComboBox_SelectionChanged" /> </DataTemplate> </DataGridTemplateColumn.CellTemplate> </DataGridTemplateColumn> </DataGrid.Columns> </DataGrid>
foreach (var it in dg.Items) { DataGridTemplateColumn tempColumn1 = dg.Columns[11] as DataGridTemplateColumn; FrameworkElement element1 = tempColumn1.GetCellContent(it); if (element1 == null) { continue; } ComboBox comboBox1 = tempColumn1.CellTemplate.FindName("cmb_precision", element1) as ComboBox; comboBox1.IsEditable = true; }
// 能用 public static void FindChildGroup<T>(DependencyObject parent, string childName, ref List<T> list) where T : DependencyObject { // Checks should be made, but preferably one time before calling. // And here it is assumed that the programmer has taken into // account all of these conditions and checks are not needed. //if ((parent == null) || (childName == null) || (<Type T is not inheritable from FrameworkElement>)) //{ // return; //} int childrenCount = VisualTreeHelper.GetChildrenCount(parent); for (int i = 0; i < childrenCount; i++) { // Get the child var child = VisualTreeHelper.GetChild(parent, i); // Compare on conformity the type T child_Test = child as T; // Not compare - go next if (child_Test == null) { // Go the deep FindChildGroup<T>(child, childName, ref list); } else { // If match, then check the name of the item FrameworkElement child_Element = child_Test as FrameworkElement; list.Add(child_Test); // if (child_Element.Name == childName) // { // // Found // list.Add(child_Test); // // 只找一个 // return; // } // We are looking for further, perhaps there are // children with the same name FindChildGroup<T>(child, childName, ref list); } } return; }
combobox 禁止下拉框 <DataGridTemplateColumn Header="驱动"> <DataGridTemplateColumn.CellTemplate> <DataTemplate> <ComboBox x:Name="cmb_driver" ItemsSource="{Binding DataContext.collectionDriver, RelativeSource={RelativeSource AncestorType=local:UCSensor}}" SelectedValue="{Binding DriverID, UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}" SelectedValuePath="DriverID" DisplayMemberPath="Name" DropDownOpened="cmb_driver_DropDownOpened" SelectionChanged="ComboBox_SelectionChanged" /> </DataTemplate> </DataGridTemplateColumn.CellTemplate> </DataGridTemplateColumn> private void cmb_driver_DropDownOpened(object sender, EventArgs e) { // 未登录不允许修改 var mainwin = (MRLGauger.MainWindow)Application.Current.MainWindow; if (MainWindow.FLAG_USER_ADMIN != (mainwin.flag&MainWindow.FLAG_USER_ADMIN)) { ComboBox cb = sender as ComboBox; cb.IsDropDownOpen = false; if (cb.Name == "cmb_precision") { cb.IsEditable = false; } }else { ComboBox cb = sender as ComboBox; cb.IsDropDownOpen = true; if (cb.Name == "cmb_precision") { cb.IsEditable = true; } } }
checkbox 只读 var mainwin = (MRLGauger.MainWindow)Application.Current.MainWindow; if (MainWindow.FLAG_USER_ADMIN != (mainwin.flag&MainWindow.FLAG_USER_ADMIN)) { var chk = sender as CheckBox; if ((bool)chk.IsChecked) { (sender as CheckBox).IsChecked = false; } else { (sender as CheckBox).IsChecked = true; } e.Handled = true; return; }else { // 获取当前选中行，更新 var result = (sender as CheckBox).IsChecked; var item = dg.SelectedItem as Model_sensor; if ((null != item) && (item.DriverID != 0) && (item.Name != "" && item.Name != null)) { if (item.ID == 0) { App.db.Insert_model<Model_sensor>(item); } else { App.db.Update_model<Model_sensor>(item); } } else { MessageBox.Show("驱动和名称为必要参数"); } }
不显示滚动条问题 StackPanel 会导致滚动条不显示，改用 DockPanel
<DockPanel Grid.Row="3"> <Button x:Name="btn_delete_all" Click="btn_delete_all_Click" DockPanel.Dock="Top">清空日志</Button> <DataGrid Name="dgLog" DockPanel.Dock="Top" AutoGenerateColumns="False" CanUserSortColumns="True" IsReadOnly="True" VerticalScrollBarVisibility="Auto" SelectionUnit="FullRow" AlternationCount="2" CanUserAddRows="False" > <DataGrid.RowStyle> <Style TargetType="DataGridRow"> <Style.Triggers> <DataTrigger Binding="{Binding Type}" Value="警告"> <Setter Property="Background" Value="Orange"></Setter> </DataTrigger> <DataTrigger Binding="{Binding Type}" Value="错误"> <Setter Property="Background" Value="orangered" ></Setter> </DataTrigger> </Style.Triggers> </Style> </DataGrid.RowStyle> <DataGrid.Columns> <DataGridTextColumn Binding="{Binding Time, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" Width="120" Header="时间"/> <DataGridTextColumn Binding="{Binding Type, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" Width="40" Header="类型"/> <DataGridTextColumn Binding="{Binding Info, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" Width="auto" Header="信息"/> </DataGrid.Columns> </DataGrid> </DockPanel>