动态lambda表达式条件

ParameterExpression pm = Expression.Parameter(typeof(ZUD_ApplicationStudioLockInfo),"x");
Expression body = null;
foreach(var item in this.layersToDelete) {

    Expression bodyItem = null;

    var viewIdLeft = Expression.Property(pm,nameof(ZUD_ApplicationStudioLockInfo.ApplicationID));
    var viewIdRight = Expression.Constant(item.Id);
    var viewIdExpr = Expression.Equal(viewIdLeft,viewIdRight);


    var layerNameLeft = Expression.Property(pm,nameof(ZUD_ApplicationStudioLockInfo.LayerName));
    var layerNameRight = Expression.Constant(item.LayerName);
    var layerNameExpr = Expression.Equal(layerNameLeft,layerNameRight);


    bodyItem = Expression.AndAlso(viewIdExpr,layerNameExpr);

    body = body == null ? bodyItem : Expression.OrElse(body,bodyItem);
}

var lambda = Expression.Lambda<Func<ZUD_ApplicationStudioLockInfo,bool>>(body,pm);

var lockData = Db.ZUD_ApplicationStudioLockInfo.Where(lambda).ToList();