internal ExistsFilter CreateExistsFilter(string propertyName)
{
FilterSupportDescription filterSupportDescription = this.GetFilterSupportDescription(propertyName);
if (filterSupportDescription == null)
{
filterSupportDescription = new FilterSupportDescription(propertyName);
this.FilterSupportDescriptions.Add(filterSupportDescription);
}
if (!this.DataTableLoader.Table.Columns.Contains(filterSupportDescription.FilteredColumnName))
{
return(null);
}
return(new ExistsFilter(new DataTableLoaderView.FilterablePropertyDefinition(filterSupportDescription.FilteredColumnName, this.DataTableLoader.Table.Columns[filterSupportDescription.FilteredColumnName].DataType)));
}
internal ComparisonFilter CreateComparisonFilter(ComparisonOperator comparisonOperator, string propertyName, object propertyValue)
{
FilterSupportDescription filterSupportDescription = this.GetFilterSupportDescription(propertyName);
if (filterSupportDescription == null)
{
filterSupportDescription = new FilterSupportDescription(propertyName);
this.FilterSupportDescriptions.Add(filterSupportDescription);
}
if (!this.DataTableLoader.Table.Columns.Contains(filterSupportDescription.FilteredColumnName))
{
return(null);
}
return(new ComparisonFilter(comparisonOperator, new DataTableLoaderView.FilterablePropertyDefinition(filterSupportDescription.FilteredColumnName, this.DataTableLoader.Table.Columns[filterSupportDescription.FilteredColumnName].DataType), this.DefaultObjectToFilterableConverter.ToFilterable(propertyValue)));
}
public bool IsFilterSupported(string propertyName)
{
if (string.IsNullOrEmpty(propertyName))
{
throw new ArgumentException("propertyName");
}
if (!this.DataTableLoader.Table.Columns.Contains(propertyName))
{
return(false);
}
FilterSupportDescription filterSupportDescription = this.FilterSupportDescriptions.FirstOrDefault((FilterSupportDescription arg) => string.Compare(arg.ColumnName, propertyName, StringComparison.OrdinalIgnoreCase) == 0);
if (filterSupportDescription != null)
{
return(!string.IsNullOrEmpty(filterSupportDescription.FilteredColumnName));
}
return(typeof(IConvertible).IsAssignableFrom(this.DataTableLoader.Table.Columns[propertyName].DataType));
}
private void DetachFilter(FilterSupportDescription filterSupportDescription)
{
filterSupportDescription.DataTableLoaderView = this;
}
