CODEWITHSUNDEEP
c#wpfmvvm
Ben
Ben

Reputation: 1321

Creating Dynamic Views for classes

Ok i've asked a previous question on this but i think I need to take a step back and ask a different question.

What i'm trying to do here is create an editor for a field decoded from a game (a modding tool), these files are decoded by a 3rd party library and added to a class which is passed back.

Now there are over 1000 varients of this class which all share the baseclass NMSTemplate, each has it's own unique properties which can be anything from a basic object (string, int) to a collection of other varients of NMSTemplate.

I've tried numerous ways to do this, and my latest is something like follows

IOrderedEnumerable<FieldInfo> fields = template.GetType().GetFields().OrderBy(field => field.MetadataToken);

        foreach(FieldInfo f in fields)
        {
            MBINField field = new MBINField()
            {
                Name = f.Name,
                Value = f.GetValue(null),
                NMSType = f.FieldType.Name
            };
            _fields.Add(field);
        }

I then bind a listview to this field collection, and use a datatemplate to change how it's displayed

<DataTemplate x:Key="MbinListTemplate">
        <StackPanel Orientation="Vertical">
            <TextBlock Text="{Binding Name}"/>
            <ListView ItemsSource="{Binding Value}" ItemTemplateSelector="{StaticResource MbinTemplateSelector}" />
        </StackPanel>
    </DataTemplate>
    <DataTemplate x:Key="MbinStringTemplate">
        <StackPanel Orientation="Horizontal">
            <TextBlock Text="{Binding Name}" />
            <TextBox Text="{Binding Value}" />
        </StackPanel>
    </DataTemplate>

Now appart from issues getting the value from FieldInfo, i realised that i've hit a pitfall when I run into a Property that is a collection of NMSTemplate i'm not sure how i can then also handle the dynamic showing of the properties of classes in that collection.

Upvotes: 0

Views: 47

Answers (1)

dontbyteme
dontbyteme

Reputation: 1261

I'm not sure if I got your question correctly but you could try to check for the field type and handle each type separately. Here's and example to handle the field of type List<NMSTemplate>

var fields = template.GetType().GetFields().OrderBy(field => field.MetadataToken);
foreach(var f in fields)
{
    var isGeneric = f.FieldType.IsGenericType;
    var isList = f.FieldType == typeof(List<NMSTemplate>);

    if(isGeneric && isList)
    {                        
        var value = f.GetValue(template);
        var list = (List<NMSTemplate>)value;

        foreach(var listEntry in list)
        {
            // ...
        }
    }
}

In the foreach loop you can than create all the MBINField objects and add them to the _fields list.

Upvotes: 1

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