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问题描述
定义一个 DataTable 在视图模型中 定义列(在我的例子中,我必须以方式定义列 c> foreach 循环) 添加行 然后绑定DataTable for ItemsSource 属性的datagrid。 (确保 AutoGeneratedColumns = True )
Define a DataTable in the view model
Define columns (In my case I had to define columns programmatically within a foreach loop)
Add rows
Then bind the DataTable for the ItemsSource property of the datagrid. (Make sure that the AutoGeneratedColumns=True)
我想在带有MVVM应用程序的WPF中的用户界面中创建一个数据透视表。所以列数不是静态的。
I wanna create a pivot table in the user interface in a WPF with MVVM application. So the number of columns are not static.
我发现我可以通过编程方式从文件中的代码添加列(如下面的代码片段所示)。
I have found that I can programmatically add columns from the code behind file (as shown in below code snippets).
myDataGrid.Columns.Add(column );但我不要想使用文件后面的代码。我想使用MVVM(从视图模型)进行此操作。任何人都可以给我一个解决方案吗?
But I don't wanna use the code behind file. I wanna do this with MVVM (from the view model). Can anyone give me a solution for this?
推荐答案我找到了解决方案。
答案是简单。
我的查看模型
private DataTable sizeQuantityTable; public DataTable SizeQuantityTable { get { return sizeQuantityTable; } set { sizeQuantityTable = value; NotifyPropertyChanged("SizeQuantityTable"); } }我已经认可了在构造函数中
I have assinged dummy data in the constructor
public MainViewModel() { this.SizeQuantityTable = new DataTable(); DataColumn sizeQuantityColumn = new DataColumn(); sizeQuantityColumn.ColumnName = "Size Quantity"; this.SizeQuantityTable.Columns.Add(sizeQuantityColumn); DataColumn sColumn = new DataColumn(); sColumn.ColumnName = "S"; this.SizeQuantityTable.Columns.Add(sColumn); DataColumn mColumn = new DataColumn(); mColumn.ColumnName = "M"; this.SizeQuantityTable.Columns.Add(mColumn); DataRow row1 = this.SizeQuantityTable.NewRow(); row1[sizeQuantityColumn] = "Blue"; row1[sColumn] = "12"; row1[mColumn] = "15"; this.SizeQuantityTable.Rows.Add(row1); DataRow row2 = this.SizeQuantityTable.NewRow(); row2[sizeQuantityColumn] = "Red"; row2[sColumn] = "18"; row2[mColumn] = "21"; this.SizeQuantityTable.Rows.Add(row2); DataRow row3 = this.SizeQuantityTable.NewRow(); row3[sizeQuantityColumn] = "Green"; row3[sColumn] = "24"; row3[mColumn] = "27"; this.SizeQuantityTable.Rows.Add(row3); DataRow row4 = this.SizeQuantityTable.NewRow(); row4[sizeQuantityColumn] = "Yellow"; row4[sColumn] = "30"; row4[mColumn] = "33"; this.SizeQuantityTable.Rows.Add(row4); }我的视图 / p>
My view
<Window x:Class="Pivot.MainWindow" xmlns="schemas.microsoft/winfx/2006/xaml/presentation" xmlns:x="schemas.microsoft/winfx/2006/xaml" xmlns:vm="clr-namespace:Pivot.ViewModels" Title="MainWindow" Height="350" Width="525"> <Grid> <Grid.DataContext> <vm:MainViewModel /> </Grid.DataContext> <DataGrid ItemsSource="{Binding SizeQuantityTable}" AutoGenerateColumns="True" /> </Grid> </Window>更多推荐
如何使用MVVM以编程方式向wpf datagrid添加列?
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