// Returns the html for all hidden inputs associated with the model
private static string HiddenInput(ModelMetadata metadata, string propertyName, bool includeDefault)
{
StringBuilder html = new StringBuilder();
if (metadata.ModelType.IsArray && metadata.Model != null)
{
// Primarily for database time stamps, this need to called before checking IsComplexType
// otherwise an endless loop is created
html.Append(HiddenInput(propertyName, Convert.ToBase64String(metadata.Model as byte[])));
}
else if (metadata.IsComplexType)
{
foreach (ModelMetadata propertyMetadata in metadata.Properties)
{
if (propertyMetadata.IsCollection() && !propertyMetadata.ModelType.IsArray)
{
// This would just render the Count and Capacity property of List<T>
continue;
}
if (propertyMetadata.Model == null && propertyMetadata.ModelType != typeof(string) && !propertyMetadata.IsRequired)
{
// Ignore complex types that are null and do not have the RequiredAttribute
continue;
}
// Recursive call to render a hidden input for the property
string prefix = null;
if (String.IsNullOrEmpty(propertyName))
{
prefix = propertyMetadata.PropertyName;
}
else
{
prefix = string.Format("{0}.{1}", propertyName, propertyMetadata.PropertyName);
}
html.Append(HiddenInput(propertyMetadata, prefix, true));
}
}
else
{
object value = metadata.Model;
if (value == null && includeDefault)
{
value = metadata.DefaultValue();
}
html.Append(HiddenInput(propertyName, value));
}
return(html.ToString());
}
/// <summary>
/// Returns the html for a numeric input that formats the display of values.
/// </summary>
/// <param name="metaData">
/// The metadata of the property.
/// </param>
/// <param name="fieldName">
/// The fully qualified name of the property.
/// </param>
/// <param name="attributes">
/// The validation attributes to rendered in the input.
/// </param>
/// <param name="includeID">
/// A value indicating the the 'id' attribute should be rendered for the input.
/// </param>
private static string NumericInput(ModelMetadata metaData, string fieldName,
IDictionary <string, object> attributes, bool includeID)
{
string defaultFormat = "{0:N}";
StringBuilder html = new StringBuilder();
// Build formatted display text
TagBuilder display = new TagBuilder("div");
// Add essential styles
display.MergeAttribute("style", "position:absolute;");
// Add class names
display.AddCssClass("numeric-text");
if (Convert.ToDouble(metaData.Model) < 0)
{
display.AddCssClass("negative");
}
if (metaData.IsCurrency())
{
defaultFormat = "{0:C}";
display.AddCssClass("currency");
}
else if (metaData.IsPercent())
{
defaultFormat = "{0:P}";
display.AddCssClass("percent");
}
else
{
display.AddCssClass("number");
}
if (Type.GetTypeCode(metaData.ModelType) == TypeCode.Int32)
{
defaultFormat = "{0:N0}";
}
// Format text
defaultFormat = metaData.DisplayFormatString ?? defaultFormat;
display.InnerHtml = string.Format(defaultFormat, metaData.Model ?? metaData.DefaultValue());
// TODO: What about nullable types
//metaData.NullDisplayText;
html.Append(display.ToString());
// Build input
TagBuilder input = new TagBuilder("input");
input.AddCssClass("numeric-input");
input.MergeAttribute("autocomplete", "off");
input.MergeAttribute("type", "text");
if (includeID)
{
input.MergeAttribute("id", HtmlHelper.GenerateIdFromName(fieldName));
}
input.MergeAttribute("name", fieldName);
input.MergeAttribute("value", string.Format("{0}", metaData.Model ?? metaData.DefaultValue()));
// Remove the data-val-number attribute (the client script ensures its a number and jquery
// validation generates an error message if the first character is a decimal point which
// disappears as soon as the next digit is entered - PITA when entering percentage values)
// TODO: Still happens if a Range attribute is added!
if (attributes != null && attributes.ContainsKey("data-val-number"))
{
attributes.Remove("data-val-number");
}
input.MergeAttributes(attributes);
html.Append(input.ToString());
// Build container
TagBuilder container = new TagBuilder("div");
container.AddCssClass("numeric-container");
// Add data attributes for use by client script
if (metaData.IsCurrency())
{
//container.MergeAttributes(GetCurrencyDataAttributes(metaData.DisplayFormatString));
container.MergeAttributes(GetCurrencyDataAttributes(defaultFormat));
}
else if (metaData.IsPercent())
{
//container.MergeAttributes(GetPercentDataAttributes(metaData.DisplayFormatString));
container.MergeAttributes(GetPercentDataAttributes(defaultFormat));
}
else
{
//container.MergeAttributes(GetNumberDataAttributes(metaData.DisplayFormatString));
container.MergeAttributes(GetNumberDataAttributes(defaultFormat));
}
// Add essential styles
container.MergeAttribute("style", "position:relative;margin:0;padding:0;");
container.InnerHtml = html.ToString();
// Return the html
return(container.ToString());
}
