public TValue this[string key]
{
get
{
return((TValue)control.GetValue(group.GetDotvvmProperty(key)));
}
set
{
control.SetValue(group.GetDotvvmProperty(key), value);
}
}
private object ResolveStaticCommandService(DotvvmBindableObject c, Type type)
{
var context = (IDotvvmRequestContext)c.GetValue(Internal.RequestContextProperty, true);
#pragma warning disable CS0618
return(context.Services.GetRequiredService <IStaticCommandServiceLoader>().GetStaticCommandService(type, context));
#pragma warning restore CS0618
}
/// <summary>
/// Gets all data context on the path to root
/// </summary>
public static object[] GetDataContexts(DotvvmBindableObject contextControl, bool seeThis)
{
var context = seeThis ? contextControl.GetValue(DotvvmBindableObject.DataContextProperty, false) : null;
return
((context == null ? new object[0] : new[] { context })
.Concat(contextControl.GetAllAncestors().OfType <DotvvmBindableObject>()
.Where(c => c.properties.ContainsKey(DotvvmBindableObject.DataContextProperty))
.Select(c => c.GetValue(DotvvmBindableObject.DataContextProperty, false)))
.ToArray());
}
public static void CopyProperty(DotvvmBindableObject source, DotvvmProperty sourceProperty, DotvvmBindableObject target, DotvvmProperty targetProperty)
{
var binding = source.GetValueBinding(sourceProperty);
if (binding != null)
{
target.SetBinding(targetProperty, binding);
}
else
{
target.SetValue(targetProperty, source.GetValue(sourceProperty));
}
}
/// <summary>
/// Processes the control tree.
/// </summary>
private void ProcessControlTreeCore(DotvvmBindableObject control, Action <DotvvmBindableObject> action)
{
// if there is a DataContext binding, locate the correct token
var hasDataContext = false;
var pathValue = control.GetValue(Internal.PathFragmentProperty, false);
if (pathValue != null)
{
CurrentPath.Push(pathValue as string);
RefreshCurrentPathArray();
hasDataContext = true;
}
else
{
var binding = control.GetValueBinding(DotvvmBindableObject.DataContextProperty, false);
if (binding != null)
{
CurrentPath.Push(binding.GetKnockoutBindingExpression());
RefreshCurrentPathArray();
hasDataContext = true;
}
}
action(control);
// go through all children
foreach (var child in control.GetLogicalChildren())
{
ProcessControlTreeCore(child, action);
}
if (hasDataContext)
{
CurrentPath.Pop();
RefreshCurrentPathArray();
}
}
/// <summary>
/// Processes the control tree.
/// </summary>
private void ProcessControlTreeCore(DotvvmBindableObject control, Action<DotvvmBindableObject> action)
{
// if there is a DataContext binding, locate the correct token
var hasDataContext = false;
var pathValue = control.GetValue(Internal.PathFragmentProperty, false);
if (pathValue != null)
{
CurrentPath.Push(pathValue as string);
RefreshCurrentPathArray();
hasDataContext = true;
}
else
{
var binding = control.GetValueBinding(DotvvmBindableObject.DataContextProperty, false);
if (binding != null)
{
CurrentPath.Push(binding.GetKnockoutBindingExpression());
RefreshCurrentPathArray();
hasDataContext = true;
}
}
action(control);
// go through all children
foreach (var child in control.GetLogicalChildren())
{
ProcessControlTreeCore(child, action);
}
if (hasDataContext)
{
CurrentPath.Pop();
RefreshCurrentPathArray();
}
}
private object ResolveStaticCommandService(DotvvmBindableObject c, Type type)
{
var context = (IDotvvmRequestContext)c.GetValue(Internal.RequestContextProperty, true);
return(context.Services.GetService <IStaticCommandServiceLoader>().GetStaticCommandService(type, context));
}
public static string?GetDataContextPathFragment(this DotvvmBindableObject currentControl) => (string?)currentControl.GetValue(Internal.PathFragmentProperty, inherit: false) ?? (currentControl.GetBinding(DotvvmBindableObject.DataContextProperty, inherit: false) is IValueBinding binding ?
/// <summary>
/// Gets the validation target expression.
/// </summary>
public static string GetValidationTargetExpression(DotvvmBindableObject control)
{
if (!(bool)control.GetValue(Validation.EnabledProperty))
{
return null;
}
// find the closest control
int dataSourceChanges;
var validationTargetControl = control.GetClosestWithPropertyValue(out dataSourceChanges, c => c.GetValueBinding(Validation.TargetProperty) != null);
if (validationTargetControl == null)
{
return "$root";
}
// reparent the expression to work in current DataContext
// FIXME: This does not work:
var validationBindingExpression = validationTargetControl.GetValueBinding(Validation.TargetProperty);
string validationExpression = validationBindingExpression.GetKnockoutBindingExpression();
validationExpression = string.Join("", Enumerable.Range(0, dataSourceChanges).Select(i => "$parent.")) + validationExpression;
return validationExpression;
}