/// <summary>
/// Bind the model
/// </summary>
/// <param name="context">Context information</param>
/// <returns>
/// An object of the specified type (<seealso cref="IModelBinderContext.ModelType)" />
/// </returns>
public object Bind(IModelBinderContext context)
{
if (context.ModelType.GetConstructor(new Type[0]) == null)
{
throw new ModelBindingException("Do not have a default constructor.", context.ModelName, context.ModelType);
}
var model = Activator.CreateInstance(context.ModelType);
var prefix = string.IsNullOrEmpty(context.Prefix) ? context.ModelName : context.Prefix + "." + context.ModelName;
foreach (var property in context.ModelType.GetProperties())
{
if (!property.CanWrite)
{
continue;
}
var value = context.Execute(property.PropertyType, prefix, property.Name);
property.SetValue(model, value, null);
}
return(model);
}
private object BindGeneric <TValueType>(IModelBinderContext context)
{
var fieldName = context.Prefix + context.ModelName + "[";
var fields = new List <string>();
foreach (var item in context.ValueProvider.Find(fieldName))
{
var pos = item.Name.IndexOf(']', fieldName.Length);
if (pos == -1)
{
throw new FormatException("Expected to find ']' to mark end of array in " + item.Name);
}
var name = item.Name.Substring(0, pos + 1);
if (!fields.Contains(name))
{
fields.Add(name);
}
}
if (!fields.Any())
{
return(null);
}
var model = new Dictionary <string, TValueType>();
for (var i = 0; i < fields.Count; i++)
{
var value = (TValueType)context.Execute(typeof(TValueType), context.Prefix, fields[i]);
var pos = fields[i].IndexOf('[');
var indexer = fields[i].Substring(pos + 1).TrimEnd(']').Trim('\'');
model.Add(indexer, value);
}
return(model);
}
private static object BuildIndexedArray(IModelBinderContext context, string fieldName, Type arrayType)
{
var fields = new List <string>();
var indexes = new List <int>();
foreach (var item in context.ValueProvider.Find(fieldName))
{
var pos = item.Name.IndexOf(']', fieldName.Length);
if (pos == -1)
{
throw new ModelBindingException("Expected to find ']' to mark end of array.", fieldName + "]", item.Name);
}
var name = item.Name.Substring(0, pos + 1);
if (!fields.Contains(name))
{
fields.Add(name);
var index = ExtractIndex(name, fieldName);
indexes.Add(index);
}
}
if (!fields.Any())
{
return(null);
}
ValidateIndexes(indexes, fieldName);
var array = Array.CreateInstance(arrayType, fields.Count);
for (var i = 0; i < fields.Count; i++)
{
var index = indexes[i];
//prefix already includes the field
var value = context.Execute(arrayType, "", fields[i]);
array.SetValue(value, index);
}
return(array);
}
/// <summary>
/// Bind the model
/// </summary>
/// <param name="context">Context information</param>
/// <returns>
/// An object of the specified type (<seealso cref="IModelBinderContext.ModelType)" />
/// </returns>
public object Bind(IModelBinderContext context)
{
if (context.ModelType.GetConstructor(new Type[0]) == null)
throw new ModelBindingException("Do not have a default constructor.", context.ModelName, context.ModelType);
var model = Activator.CreateInstance(context.ModelType);
var prefix = string.IsNullOrEmpty(context.Prefix) ? context.ModelName : context.Prefix + "." + context.ModelName;
foreach (var property in context.ModelType.GetProperties())
{
if (!property.CanWrite)
continue;
var value = context.Execute(property.PropertyType, prefix, property.Name);
property.SetValue(model, value, null);
}
return model;
}
private static object BuildIndexedArray(IModelBinderContext context, string fieldName, Type arrayType)
{
var fields = new List<string>();
var indexes = new List<int>();
foreach (var item in context.ValueProvider.Find(fieldName))
{
var pos = item.Name.IndexOf(']', fieldName.Length);
if (pos == -1)
throw new ModelBindingException("Expected to find ']' to mark end of array.", fieldName + "]", item.Name);
var name = item.Name.Substring(0, pos + 1);
if (!fields.Contains(name))
{
fields.Add(name);
var index = ExtractIndex(name, fieldName);
indexes.Add(index);
}
}
if (!fields.Any())
return null;
ValidateIndexes(indexes, fieldName);
var array = Array.CreateInstance(arrayType, fields.Count);
for (var i = 0; i < fields.Count; i++)
{
var index = indexes[i];
//prefix already includes the field
var value = context.Execute(arrayType, "", fields[i]);
array.SetValue(value, index);
}
return array;
}
