public string Build()
{
if (_metadata.ConvertEmptyStringToNull && string.Empty.Equals(_model))
{
_model = null;
}
var formattedModelValue = _model;
if (_model == null && _readOnly)
{
formattedModelValue = _metadata.NullDisplayText;
}
var formatString = _readOnly ? _metadata.DisplayFormatString : _metadata.EditFormatString;
if (_model != null && !string.IsNullOrEmpty(formatString))
{
formattedModelValue = string.Format(CultureInfo.CurrentCulture, formatString, _model);
}
// Normally this shouldn't happen, unless someone writes their own custom Object templates which
// don't check to make sure that the object hasn't already been displayed
if (_viewData.TemplateInfo.Visited(_modelExplorer))
{
return(string.Empty);
}
// We need to copy the ModelExplorer to copy the model metadata. Otherwise we might
// lose track of the model type/property. Passing null here explicitly, because
// this might be a typed VDD, and the model value might not be compatible.
var viewData = new ViewDataDictionary(_viewData, model: null);
// We're setting ModelExplorer in order to preserve the model metadata of the original
// _viewData even though _model may be null.
viewData.ModelExplorer = _modelExplorer.GetExplorerForModel(_model);
viewData.TemplateInfo.FormattedModelValue = formattedModelValue;
viewData.TemplateInfo.HtmlFieldPrefix = _viewData.TemplateInfo.GetFullHtmlFieldName(_htmlFieldName);
if (_additionalViewData != null)
{
foreach (var kvp in HtmlHelper.ObjectToDictionary(_additionalViewData))
{
viewData[kvp.Key] = kvp.Value;
}
}
var visitedObjectsKey = _model ?? _modelExplorer.ModelType;
viewData.TemplateInfo.AddVisited(visitedObjectsKey);
var templateRenderer = new TemplateRenderer(_viewEngine, _viewContext, viewData, _templateName, _readOnly);
return(templateRenderer.Render());
}
public string Build()
{
if (_metadata.ConvertEmptyStringToNull && string.Empty.Equals(_metadata.Model))
{
_metadata.Model = null;
}
var formattedModelValue = _metadata.Model;
if (_metadata.Model == null && _readOnly)
{
formattedModelValue = _metadata.NullDisplayText;
}
var formatString = _readOnly ? _metadata.DisplayFormatString : _metadata.EditFormatString;
if (_metadata.Model != null && !string.IsNullOrEmpty(formatString))
{
formattedModelValue = string.Format(CultureInfo.CurrentCulture, formatString, _metadata.Model);
}
// Normally this shouldn't happen, unless someone writes their own custom Object templates which
// don't check to make sure that the object hasn't already been displayed
if (_viewData.TemplateInfo.Visited(_metadata))
{
return(string.Empty);
}
var viewData = new ViewDataDictionary(_viewData)
{
Model = _metadata.Model,
ModelMetadata = _metadata
};
viewData.TemplateInfo.FormattedModelValue = formattedModelValue;
viewData.TemplateInfo.HtmlFieldPrefix = _viewData.TemplateInfo.GetFullHtmlFieldName(_htmlFieldName);
if (_additionalViewData != null)
{
foreach (var kvp in HtmlHelper.ObjectToDictionary(_additionalViewData))
{
viewData[kvp.Key] = kvp.Value;
}
}
var visitedObjectsKey = _metadata.Model ?? _metadata.RealModelType;
viewData.TemplateInfo.AddVisited(visitedObjectsKey);
var templateRenderer = new TemplateRenderer(_viewEngine, _viewContext, viewData, _templateName, _readOnly);
return(templateRenderer.Render());
}