public Expression <Func <TEntity, bool> > GetGridExpression(BaseGrid <TEntity> grid)
{
var expression = PredicateHelper.True <TEntity>();
var customFilterExpression = grid.GetCustomFilterExpression();
if (customFilterExpression != null)
{
expression = expression.And(customFilterExpression);
}
var searchExpression = grid.GetSearchExpression();
if (searchExpression != null)
{
expression = expression.And(searchExpression);
}
foreach (var filter in grid.Filters.Where(q => q.HasSelectedData))
{
var filterExpression = _filterStore.FilterExpressionGeneratorStrategies[filter.Type].GetFilterLinqExpression(filter);
if (filterExpression != null)
{
expression = expression.And(filterExpression);
}
}
return(expression);
}