private void EnsureInit() {
if (_column != null)
return;
// make sure we have a DataField
if (String.IsNullOrEmpty(DataField)) {
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture,
DynamicDataResources.FilterUserControlBase_MissingDataField,
ID));
}
MetaTable table = null;
if (!String.IsNullOrEmpty(ContextTypeName) || !String.IsNullOrEmpty(TableName)) {
// make sure both ContextTypeName and TableName are specified together
if (String.IsNullOrEmpty(ContextTypeName)) {
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture,
DynamicDataResources.FilterUserControlBase_MissingContextTypeName,
ID));
}
if (String.IsNullOrEmpty(TableName)) {
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture,
DynamicDataResources.FilterUserControlBase_MissingTableName,
ID));
}
Type contextType = GetContextType(ContextTypeName);
MetaModel model = null;
try {
model = MetaModel.GetModel(contextType);
} catch (InvalidOperationException e) {
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture,
DynamicDataResources.FilterUserControlBase_UnknownContextType,
ID,
contextType.FullName), e);
}
string tableName = TableName;
try {
table = model.GetTable(tableName);
} catch (ArgumentException e) {
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture,
DynamicDataResources.FilterUserControlBase_InvalidTableName,
ID,
tableName), e);
}
} else {
// get context information from request context
table = DynamicDataRouteHandler.GetRequestMetaTable(HttpContext.Current);
if (table == null) {
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture,
DynamicDataResources.FilterUserControlBase_CantInferInformationFromRequestUrl,
ID));
}
}
try {
_column = table.GetColumn(DataField);
} catch (InvalidOperationException e) {
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture,
DynamicDataResources.FilterUserControlBase_InvalidDataField,
ID,
DataField), e);
}
// create appropriate filter implementation based on column type
if (_column is MetaForeignKeyColumn) {
_filterDelegate = new ForeignKeyFilterDelegate(this);
} else if (_column.ColumnType == typeof(bool) && !_column.IsCustomProperty) {
_filterDelegate = new BooleanPropertyFilterDelegate(this);
} else {
_filterDelegate = new DefaultPropertyFilterDelegate(this);
}
}
private void EnsureInit()
{
if (_column != null)
{
return;
}
// make sure we have a DataField
if (String.IsNullOrEmpty(DataField))
{
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture,
DynamicDataResources.FilterUserControlBase_MissingDataField,
ID));
}
MetaTable table = null;
if (!String.IsNullOrEmpty(ContextTypeName) || !String.IsNullOrEmpty(TableName))
{
// make sure both ContextTypeName and TableName are specified together
if (String.IsNullOrEmpty(ContextTypeName))
{
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture,
DynamicDataResources.FilterUserControlBase_MissingContextTypeName,
ID));
}
if (String.IsNullOrEmpty(TableName))
{
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture,
DynamicDataResources.FilterUserControlBase_MissingTableName,
ID));
}
Type contextType = GetContextType(ContextTypeName);
MetaModel model = null;
try {
model = MetaModel.GetModel(contextType);
} catch (InvalidOperationException e) {
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture,
DynamicDataResources.FilterUserControlBase_UnknownContextType,
ID,
contextType.FullName), e);
}
string tableName = TableName;
try {
table = model.GetTable(tableName);
} catch (ArgumentException e) {
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture,
DynamicDataResources.FilterUserControlBase_InvalidTableName,
ID,
tableName), e);
}
}
else
{
// get context information from request context
table = DynamicDataRouteHandler.GetRequestMetaTable(HttpContext.Current);
if (table == null)
{
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture,
DynamicDataResources.FilterUserControlBase_CantInferInformationFromRequestUrl,
ID));
}
}
try {
_column = table.GetColumn(DataField);
} catch (InvalidOperationException e) {
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture,
DynamicDataResources.FilterUserControlBase_InvalidDataField,
ID,
DataField), e);
}
// create appropriate filter implementation based on column type
if (_column is MetaForeignKeyColumn)
{
_filterDelegate = new ForeignKeyFilterDelegate(this);
}
else if (_column.ColumnType == typeof(bool) && !_column.IsCustomProperty)
{
_filterDelegate = new BooleanPropertyFilterDelegate(this);
}
else
{
_filterDelegate = new DefaultPropertyFilterDelegate(this);
}
}
