public static void GetModel(object viewObj, Control parentControl = null)
{
if (parentControl == null)
{
parentControl = Current;
}
var list = GetPostPair(viewObj, parentControl);
if (list.Count == 0)
{
throw new InvalidOperationException("PostPair's empty!");
}
Page page = parentControl.Page;
foreach (PostPair pair in list)
{
Control control = page.FindControl(pair.UniqueID);
if (control == null)
{
throw new InvalidOperationException(string.Format("GetPost:'{0}' isn't exists. Remark:如果此ID是OutputCache用户控件，那么在回发的时候可能是Null。", pair.UniqueID));
}
WebControl webControl = control as WebControl;
if (webControl != null && !webControl.Enabled)
{
continue;
}
PropertyAccess property = pair.Property;
Type propType = property.EntityProperty.PropertyType;
if (!TypeHelper.IsStringOrValueType(propType))
{
continue;
}
object value = null;
Type underlyingType;
if (TypeHelper.IsNullableType(propType, out underlyingType))
{
propType = underlyingType;
}
CheckBoxList listControl;
if (propType.IsEnum &&
(listControl = control as CheckBoxList) != null && Attribute.IsDefined(propType, typeof(FlagsAttribute)))
{
int flag = 0;
foreach (ListItem item in listControl.Items)
{
if (item.Selected)
{
int itemValue = int.Parse(item.Value);
flag |= itemValue;
}
}
value = flag;
}
else
{
ITextControl textControl = control as ITextControl;
if (textControl != null)
{
value = textControl.Text;
}
else
{
ICheckBoxControl checkBoxControl = control as ICheckBoxControl;
if (checkBoxControl != null)
{
value = checkBoxControl.Checked;
}
else
{
HiddenField hiddenField = control as HiddenField;
if (hiddenField != null)
{
value = hiddenField.Value;
}
}
}
}
if (object.Equals(value, string.Empty))
{
if (!property.IsNullable)
{
throw new InvalidCastException(property.MappedName);
}
property.SetValue(viewObj, null);
}
else
{
if (property.EntityProperty.PropertyType == typeof(Guid))
{
property.SetValue(viewObj, new Guid(value.ToString()));
}
else
{
// property.ChangeType 处理了类型为Enum的情况
property.SetValue(viewObj, property.ChangeType(value));
}
}
}
}
