public SqlProvider <T> FormatUpdateZhanglei <TKey>(Expression <Func <T, TKey> > expression, TKey value)
{
MemberExpression m = expression.Body as MemberExpression;
if (m == null)
{
var mbs = new ExpressionPropertyFinder(expression, typeof(T)).MemberList;
if (!mbs.Any())
{
throw new FieldAccessException($"未在更新表达式中找到类型 {typeof(T).Name} 的任何字段");
}
}
var update = ResolveExpression.Instance(Dialect).ResolveUpdateZhanglei <T>(expression, value);
var where = ResolveExpression.Instance(Dialect).ResolveWhere(Context.CommandSet.WhereExpression);
var whereSql = where.SqlCmd;
Params = where.Param;
Params.AddDynamicParams(update.Param);
SqlString = $"UPDATE {FormatTableName(false)} {update.SqlCmd} {whereSql}";
return(this);
}
public void Test1()
{
List <Expression <Func <TheModel, object> > > list = new List <Expression <Func <TheModel, object> > >();
list.Add(x => x.Id);
list.Add(x => x.Name);
var epf = new ExpressionPropertyFinder(list[0], typeof(TheModel));
var result = epf.MemberList;
}