wpfdatagrid

问题 I am currently working on a custom canvas and in that i have to add a table,So i thought dataGrid would be fine. SO i Want to create a " Table" from "Datagrid" by which user can add a table to the canvas at runtime. Till now, I have tried to Populate DataGrid With a list and succeded. How Can I add Columns to a Datagrid at runtime,such that the number of columns and header value Would be taken from the user at runtime using a textbox and based on the value of the textbox the datagrid should

问题 I have a DataGrid which has a style for IsSelectionActive ; however, as soon as the ContextMenu opens, the grid loses IsSelectionActive and it looks like to the user that as if the context menu somehow took the selection and may confuse the user. Is there a way to retain IsSelectionActive when a context menu opens? <ControlTemplate.Triggers> <MultiTrigger> <MultiTrigger.Conditions> <!--<Condition Property="Selector.IsFocused" Value="True" />--> <Condition Property="IsSelected" Value="True" />

问题 I have something like orders table bound to a DataGrid . I want to disable editing on rows, where order date is expired (deadline date > current date): show them greyed and ban entering into edit mode. Here is what I have: <Style TargetType="{x:Type WPFToolkit:DataGridRow}"> <Style.Triggers> <MultiTrigger> <MultiTrigger.Conditions> <!-- ??? order_date > current_date --> <!-- some other condition - already works --> </MultiTrigger.Conditions> <Setter Property="IsEnabled" Value="False"/>

问题 I had a DataGrid, include expander. I want to unselect all rows when expander click, so I call dg.UnSelectAll() or dg.UnSelectAllCells() . But, always get NullReferenceException. I don't know what happening. Edit: My DataGrid Do something, include some style code. Xaml <Style x:Key="GroupHeaderStyle" TargetType="{x:Type GroupItem}"> <Setter Property="Template"> <Setter.Value> <ControlTemplate> <!--<Expander IsExpanded="{Binding Mode=TwoWay, Path=IsSelected, RelativeSource={RelativeSource

问题 I'm implementing a WPF DataGrid that contains projects with many key figures. Projects are grouped by project categories. For each category there should be: a row that shows in each key figure column sum of all rows for the column. a target row that is not part of the datasource grid in binded to. target row tells for every column what is target for the year (e.g. how much money there's to spend). These rows should be always on top in each group (sorting filtering). My 1st solution was to

问题 I would like to gray out and disable specific rows in datagrid. All rows which have the bool flag IsEnabled set to false should be grayed out and disabled for editing. How can I achieve that? Below you can find my Example Code: MainWindow.xaml <Window x:Class="WpfApplicationDisableRows.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="clr-namespace:WpfApplicationDisableRows" Title="MainWindow"

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 4 years ago . I'm new with WPF and I want to make a small application with the embedded (local) database in WPF. I'm using VS08 , --> add new file --> local Database. I can also add a table (test table called Person with Name and Age). And now comes my problem, could anyone tell me how to make

问题 I have a button in a DataGrid. I need to bind the CommandParameter of this button to the DataItem so that the Predicate of its command will receive information on which piece of data is connected to the button of a given row. I am using MVVM. Thus far, all objects have been bound rather than using explicit naming or event handlers. The button is being used in the data filtering process. The command works because the ICollectionView object in my ViewModel gets the correct CurrentItem when a

问题 I want to edit the cell not its value but its background color. I know the rowIndex and the columnIndex. But to travese through the grid is a hard part. I just want something like DataGrid.Rows[0][3].BackgroundColor=WhateverIWant Even looping with the help of VisualTreeHelper will work, but kindly guide me through it. Thanks 回答1: Use following method: public static DataGridCell GetDataGridCell(DataGrid grid, int rowIndex, int colIndex) { DataGridCell result = null; DataGridRow row =

问题 I have an add movie window: private void button1_Click(object sender, RoutedEventArgs e) { string name = txtName.Text; string genre = txtGenre.Text; bool dubbed = checkBox1.IsChecked.Value; bool is3d = checkBox2.IsChecked.Value; MessageBox.Show(name + " " + genre); var main = new MainWindow(); main.CallbackAddMovie(name, genre, dubbed, is3d); this.Close(); } And the callback: public class DataItem { public string name { get; set; } public string genre { get; set; } public bool dubbed { get;