具有多列的Treeview [英] Treeview with multiple columns

问题描述

我正在尝试在WPF中使用多列创建树视图。我很清楚，关于这个主题确实有很多问题。但是，在绑定数据时，它们似乎采取了不同的方法。每个人似乎都设置了itemsource，就像我在后面的代码中填充treeview.items的位置一样。这也是我不确定是否要使用ItemTemplate / HierarchicalDataTemplate或完成它的正确方法的原因。 （我觉得这应该是一个简单的步骤。）

I am trying to create a treeview in WPF with multiple columns. I am well aware, that there are really numerous questions regarding this subject. However they seem to take a different approach when binding the data. Everybody seems to set the itemssource, as where I fill the treeview.items in de code behind. That is also the reason I am not sure whether to use ItemTemplate / HierarchicalDataTemplate or the correct way to accomplish it. (I have the feeling that this should be an easy step.)

我现在拥有的代码如下：

The code I have now is as follows:

Mainwindow.xaml中的树视图

Treeview in Mainwindow.xaml

<TreeView x:Name="ProcesTree" Grid.Column="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch">
    <TreeView.ItemTemplate>
        <ItemContainerTemplate>
            <Grid>
                <TextBlock Text="{Binding procesNummer}" HorizontalAlignment="Left" VerticalAlignment="Center" Grid.Column="0"/>
                <TextBlock Text="{Binding procesNaam}" HorizontalAlignment="Left" VerticalAlignment="Center" Grid.Column="0"/>
            </Grid>
        </ItemContainerTemplate>
    </TreeView.ItemTemplate>
</TreeView>

Mainwindow.xaml.cs

Mainwindow.xaml.cs

public List<Proces> processen = new List<Proces>();

public MainWindow() {
    InitializeComponent();
    processen = Database.getHoofdProcessen();
    processen = Extensions.OrderByAlphaNumeric(processen, p => p.procesNummer);

    foreach (Proces p in processen) {
        writeProcesses(p, ProcesTree.Items);
    }
}


public void writeProcesses(Proces p, ItemCollection tv) {
    tv.Add(p);

    List<Proces> processen = Database.getProcessenOnNummer((p.procesNummer + ".%"));
    if (processen.Count != 0) {
        foreach (Proces pr in processen) {
                writeProcesses(pr, p.Items);
            }
    }
}

过程类别：

public class Proces : TreeViewItem {
    public Int64 procesId { get; set; }
    public String procesNummer { get; set; }
    public String procesNaam { get; set; }
    public String procesOmschrijvig { get; set; }
    public Boolean procesEinde { get; set; }
}

@Edit-要清楚，我现在具有如下结构图片。唯一遗漏的是模板？如下所示：

@Edit - To be clear, I now have a structure like the following image. The only thing that misses is the template? as how it should be shown:

推荐答案

我偶然发现了一种简单的方法来完成自己的尝试。无需使用第三方控件或非常复杂的模板。感谢以下链接：
http://www.codemag.com/Article/1401031

I have stumbled upon an easy way to accomplish what I was trying. Without using third-party controls or very complex templates. Thanks to the following link: http://www.codemag.com/Article/1401031

由于我很难在此找到任何有用的东西，因此我决定自己发布一个答案，以便其他人也可以使用它。

Since I had a really hard time finding anything usefull on this, I decided to post an answer myself, so others can also make use of it.

带有模板的树形视图代码：

<TreeView BorderThickness="0" ItemsSource="{Binding processes}">
    <TreeView.ItemTemplate>
        <HierarchicalDataTemplate ItemsSource="{Binding subProcesses}" >
            <Grid>

                //Number of columns
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="*"/>
                    <ColumnDefinition Width="2*"/>
                </Grid.ColumnDefinitions>

                //Controls to use in the treeview grid
                <TextBlock Text="{Binding procesId}" Grid.Column="0"/>
                <TextBlock Text="{Binding procesName}" Grid.Column="1"/>

            </Grid>
        </HierarchicalDataTemplate>
    </TreeView.ItemTemplate>
</TreeView>

要绑定到树视图的列表（每次您将向Proces列出它将生成的子流程的列表

List to bind to the treeview (Every time you will give the Proces a list of subProcesses it will generate an additional level in the treeview):

List<Proces> processes;

过程类别：

public class Proces {
    public Int64 procesId { get; set; }
    public String procesName { get; set; }
    public List<Proces> subProcesses { get; set; }
}

这篇关于具有多列的Treeview的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！