private static IBinding CreateBindingInstance(string bindingTypeName, string bindingSource, string bindingTarget, BindingDirection bindingDirection, IFormatter bindingFormatter)
{
IBinding binding;
Type bindingType = TypeResolutionUtils.ResolveType(bindingTypeName);
ConstructorInfo ctor =
bindingType.GetConstructor(new Type[] { typeof(string), typeof(string), typeof(BindingDirection), typeof(IFormatter) });
if (ctor == null)
{
throw new ArgumentException(string.Format("Specified BindingType '{0}' does not implement constructor (string,string,BindingDirection,IFormatter)", bindingTypeName));
}
binding =
(IBinding)
ObjectUtils.InstantiateType(ctor, new object[] { bindingSource, bindingTarget, bindingDirection, bindingFormatter });
return(binding);
}
private static IBinding CreateBindingInstance(string bindingTypeName, string bindingSource, string bindingTarget, BindingDirection bindingDirection, IFormatter bindingFormatter)
{
IBinding binding;
Type bindingType = TypeResolutionUtils.ResolveType(bindingTypeName);
ConstructorInfo ctor =
bindingType.GetConstructor(new Type[] {typeof(string), typeof(string), typeof(BindingDirection), typeof(IFormatter)});
if (ctor == null)
{
throw new ArgumentException(string.Format("Specified BindingType '{0}' does not implement constructor (string,string,BindingDirection,IFormatter)",bindingTypeName));
}
binding =
(IBinding)
ObjectUtils.InstantiateType(ctor, new object[] {bindingSource, bindingTarget, bindingDirection, bindingFormatter});
return binding;
}
/// <summary>
/// Retrieves custom binding attributes from a webcontrol and adds a new binding
/// instance to the container's <see cref="UserControl.BindingManager"/> if necessary.
/// </summary>
private void BindControl(IWebDataBound dataBound, WebControl theControl)
{
// special handling of adapted controls
DataBindingAdapter adapterControl = theControl as DataBindingAdapter;
Control wc = (adapterControl != null && adapterControl.WrappedControl != null) ? adapterControl.WrappedControl : theControl;
AttributeCollection attributeCollection = theControl.Attributes;
string bindingTarget = attributeCollection[ATTR_BINDINGTARGET];
// at least a BindingTarget must be specified
if (bindingTarget == null)
{
return;
}
attributeCollection.Remove(ATTR_BINDINGTARGET);
// determine direction
BindingDirection bindingDirection = BindingDirection.Bidirectional;
string strBindingDirection = attributeCollection[ATTR_BINDINGDIRECTION];
if (strBindingDirection != null)
{
bindingDirection = (BindingDirection)Enum.Parse(typeof(BindingDirection), strBindingDirection);
}
// determine BindingSource
string bindingSource = attributeCollection[ATTR_BINDINGSOURCE];
if (bindingSource == null)
{
bindingSource = AutoProbeSourceProperty(wc);
}
attributeCollection.Remove(ATTR_BINDINGSOURCE);
// get formatter if any
IFormatter bindingFormatter = null;
string bindingFormatterName = attributeCollection[ATTR_BINDINGFORMATTER];
if (bindingFormatterName != null)
{
bindingFormatter = (IFormatter)dataBound.ApplicationContext.GetObject(bindingFormatterName);
attributeCollection.Remove(ATTR_BINDINGFORMATTER);
}
// determine source expression
string containerName = dataBound.UniqueID;
string controlName = wc.UniqueID;
string relativeControlName = null;
if (dataBound is System.Web.UI.Page)
{
relativeControlName = string.Format("FindControl('{0}')", controlName);
}
else if ((Control)dataBound != this.NamingContainer)
{
relativeControlName = (controlName.StartsWith(containerName)) ? controlName.Substring(containerName.Length + 1) : controlName;
relativeControlName = string.Format("FindControl('{0}')", relativeControlName);
}
else
{
relativeControlName = wc.ID;
}
// if no bindingSource, expression evaluates to the bound control
bindingSource = (StringUtils.HasLength(bindingSource))
? relativeControlName + "." + bindingSource
: relativeControlName;
Log.Debug(
string.Format("binding control '{0}' relative to '{1}' using expression '{2}'", controlName,
containerName, bindingSource));
//get bindingType if any
IBinding binding = null;
string bindingTypeName = attributeCollection[ATTR_BINDINGTYPE];
if (bindingTypeName == null)
{
bindingTypeName = AutoProbeBindingType(wc);
}
// get messageId and errorProviders list
string messageId = attributeCollection[ATTR_MESSAGEID];
string errorProvidersText = attributeCollection[ATTR_ERRORPROVIDERS];
string[] errorProviders = null;
if (StringUtils.HasLength(errorProvidersText))
{
errorProviders = (string[])new Spring.Core.TypeConversion.StringArrayConverter().ConvertFrom(errorProvidersText);
}
// add binding to BindingManager
if (bindingTypeName != null)
{
binding = CreateBindingInstance(bindingTypeName, bindingSource, bindingTarget, bindingDirection, bindingFormatter);
binding = dataBound.BindingManager.AddBinding(binding);
}
else
{
binding = dataBound.BindingManager.AddBinding(bindingSource, bindingTarget, bindingDirection, bindingFormatter);
}
// set error message
if (StringUtils.HasLength(messageId))
{
binding.SetErrorMessage(messageId, errorProviders);
}
}
