public async Task <long> Max(Expression <Func <T, bool> > @where = null, Expression <Func <T, long> > maxColumn = null, bool isIncludeDeleted = false)
{
if (maxColumn == null)
{
throw new ArgumentException("the field to get the max is not specified!");
}
var maxColumnField = _expressionUtils.GetField(maxColumn.Body);
var parameters = new List <TParameter>();
var sb = GetMaxColumnQuery(where, maxColumnField, parameters);
var result = await SQLExecutor.ExecuteSqlReturningValue <long>(sb, parameters);
return(result);
}
public static EmitSyntax Stfld <T, R>(this EmitSyntax emit, Expression <Func <T, R> > expr)
{
emit.Stfld(ExpressionUtils.GetField(expr));
return(emit);
}