public override Type?GetChildDataContextType(Type dataContext, DataContextStack controlContextStack, DotvvmBindableObject control, DotvvmProperty?property = null)
{
var controlType = control.GetType();
var controlPropertyField = controlType.GetField($"{PropertyName}Property", BindingFlags.Public | BindingFlags.Static | BindingFlags.FlattenHierarchy);
var controlProperty = (DotvvmProperty?)controlPropertyField?.GetValue(null);
if (controlProperty == null)
{
throw new Exception($"The property '{PropertyName}' was not found on control '{controlType}'!");
}
if (control.properties.Contains(controlProperty))
{
return(control.GetValueBinding(controlProperty) is IValueBinding valueBinding
? valueBinding.ResultType
: dataContext);
}
if (AllowMissingProperty)
{
return(dataContext);
}
throw new Exception($"Property '{PropertyName}' is required on '{controlType.Name}'.");
}
public DotvvmControlException(DotvvmBindableObject control, string message, Exception innerException = null)
: base(message, innerException)
{
ControlType = control.GetType();
LineNumber = (int?)Internal.MarkupLineNumberProperty.GetValue(control);
FileName = (string)Internal.MarkupFileNameProperty.GetValue(control);
}
public DotvvmControlException(DotvvmBindableObject control, string message, Exception innerException = null)
: base(message, innerException)
{
ControlType = control.GetType();
LineNumber = (int?)Internal.MarkupLineNumberProperty.GetValue(control);
if (control.Parent != null) control = control.Parent;
FileName = (string)Internal.MarkupFileNameProperty.GetValue(control);
}
public override Type GetChildDataContextType(Type dataContext, DataContextStack controlContextStack, DotvvmBindableObject control, DotvvmProperty property = null)
{
var controlType = control.GetType();
var controlPropertyField = controlType.GetField($"{PropertyName}Property", BindingFlags.Public | BindingFlags.Static | BindingFlags.FlattenHierarchy);
var controlProperty = (DotvvmProperty)controlPropertyField?.GetValue(null);
if (controlProperty == null)
{
throw new Exception($"The property '{PropertyName}' was not found on control '{controlType}'!");
}
if (control.Properties.ContainsKey(controlProperty) && control.HasValueBinding(controlProperty))
{
return(control.GetValueBinding(controlProperty).ResultType);
}
return(controlProperty.PropertyType);
}