Question

我正在尝试在WPF中创建一个datagrid，其中两个collumns是静态的，之后根据MVVM模式的参数列表的长度，collumns将是动态的。我们的想法是，您可以在第二列中选择带有下拉框的分布类型，然后它将生成参数。每行可以具有不同大小的参数，在选择行时，我将相应地改变标题参数以适合参数。我不知道如何实现这一点，任何人都可以指出我正确的方向。

澄清：行应该像数据网格一样，并且用户可以更改。单独数组的每个列应该有自己的标题。

目前的布局：

主窗口的XAML

<Window x:Class="WPF_Tester.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:WPF_Tester"
        mc:Ignorable="d"
        Title="MainWindow" Height="350" Width="525">
    <Grid Margin="10">
        <DataGrid Name="data" AutoGenerateColumns="False">
            <DataGrid.Columns>
                <DataGridTextColumn Header="Name" Binding="{Binding Name}" />
                <DataGridTextColumn Header="Distribution Type" Binding="{Binding Dist.Type}" />
                <DataGridTextColumn Header="Param 1" Binding="{Binding Dist.Param1}" />
                <DataGridTextColumn Header="Param 2" Binding="{Binding Dist.Param2}" />
            </DataGrid.Columns>
        </DataGrid>
    </Grid>
</Window>

示例应用程序的代码：

using System.Collections.Generic;
using System.Windows;

namespace WPF_Tester
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();

            List<Parameter> Data = new List<Parameter>();
            Data.Add(new Parameter() { Id = 1, Name = "John Doe", Dist = new Distribution("static", 1, 0) });
            Data.Add(new Parameter() { Id = 2, Name = "Jane Doe", Dist = new Distribution("guassian", 1, 2) });
            Data.Add(new Parameter() { Id = 3, Name = "Sammy Doe", Dist = new Distribution("gaussian", 1, 2) });

            data.ItemsSource = Data;
        }

        //Class with the parameters per row of the datagrid
        public class Parameter
        {
            public int Id { get; set; }
            public string Name { get; set; }
            public Distribution Dist { get; set; }
        }

        //Distribution class
        //PROBLEM: Parameters should be a list that can change in size depending on the selected type
        public class Distribution
        {
            public Distribution(string type, int param1, int param2)
            {
                Type = type;
                Param1 = param1;
                Param2 = param2;

                //This is what I would want to work, fill the datagrid with a list of changing size
                //depending on the type of the distribution.
                if (type == "static")
                     ParamList = new List<int> { 1 };  //This with what I would want to fill the datagrid
                else if (type == "guassian")
                    ParamList = new List<int> { 1, 2 };
            }

        public string Type { get; set; }
        public List<int> ParamList { get; set; }
        public int Param1 { get; set; }
        public int Param2 { get; set; }
        }
    }
}

基本问题：如何将每行不同大小的列表动态链接到数据网格。

Answer 1

你真的需要数据横向移动。在您的情况下，我会使用TemplateColumn DataGrid并将其模板化为WrapPanel，如下例所示：

 <DataGridTemplateColumn Header="Parameters">
     <DataGridTemplateColumn.CellTemplate>
         <DataTemplate>
             <ItemsControl Margin="3" ItemsSource="{Binding ParametersList}">
                 <ItemsControl.ItemsPanel>
                     <ItemsPanelTemplate>
                          <WrapPanel />
                     </ItemsPanelTemplate>
                 </ItemsControl.ItemsPanel>
                 <ItemsControl.ItemTemplate>
                    <DataTemplate>
                       <Border BorderThickness="3" BorderBrush="Black" CornerRadius="5"  Margin="3,0" MinWidth="100" >
                          <Grid>
                             <TextBlock>Here you will put whatever you wish to show... </TextBlock>
                          </Grid>
                       </Border>
                    </DataTemplate>
                 </ItemsControl.ItemTemplate>
            </ItemsControl>
        </DataTemplate>
   </DataGridTemplateColumn.CellTemplate>

如何将每行不同大小的WPF中的列表动态链接到数据网格

1 个答案: