private IEnumerable <object> GetParentValues(CascadingDropDownAttribute child, ViewDataDictionary viewData)
{
var parentMetadata = ModelMetadata.FromStringExpression(child.ParentName, viewData);
var viewModelType = parentMetadata.ContainerType;
var parentProperty = parentMetadata.PropertyName;
var properties = GetPropertyInfo(viewModelType, viewData, 0);
var theProperty = properties.FirstOrDefault(x => x.Name == parentProperty);
var cascadingAttr = theProperty.GetCustomAttribute <CascadingDropDownAttribute>();
if (cascadingAttr != null)
{
foreach (var obj in GetParentValues(cascadingAttr, viewData))
{
yield return(obj);
}
}
yield return(parentMetadata.Model);
}
private IEnumerable<object> GetParentValues(CascadingDropDownAttribute child, ViewDataDictionary viewData)
{
var parentMetadata = ModelMetadata.FromStringExpression(child.ParentName, viewData);
var viewModelType = parentMetadata.ContainerType;
var parentProperty = parentMetadata.PropertyName;
var properties = GetPropertyInfo(viewModelType, viewData, 0);
var theProperty = properties.FirstOrDefault(x => x.Name == parentProperty);
var cascadingAttr = theProperty.GetCustomAttribute<CascadingDropDownAttribute>();
if (cascadingAttr != null)
{
foreach (var obj in GetParentValues(cascadingAttr, viewData))
{
yield return obj;
}
}
yield return parentMetadata.Model;
}
private static void SetViewdataWithValues(CascadingDropDownAttribute attr, string name, IDictionary <string, object> viewData, params object[] values)
{
var viewDataKey = "DDKey_" + name;
viewData[viewDataKey] = viewData[viewDataKey] ?? attr.GetMethodResult(values);
}
private static void SetViewdataWithValues(CascadingDropDownAttribute attr, string name,
IDictionary<string, object> viewData, params object[] values)
{
var viewDataKey = "DDKey_" + name;
viewData[viewDataKey] = viewData[viewDataKey] ?? attr.GetMethodResult(values);
}