UPDATE: It Is Now Working
I was able to finally get it completed. A working-example is detailed in an answer below (which I will be able to mark-off in 2 days).

Everything Below Here Was Part of the Original Question

For the last 3 days, I have been trying to build a dynamic-where-clause on a DBML DataContext using code samples from questions posted here and from other sources as well...none have worked!

出于以下原因,我开始问,根据《框架》3.5,这是否甚至是《最低业务安全标准》:

1. Predicate Builder notes Framework 4.0 on their site.
2. Some answers here talk about an equivolent Invoke versions in 4.0 (so I have some hope here).
3. ...I could go on but you get the idea.

我确实遭受损失,似乎“在扼杀时感到悲伤”。 我需要就如何解决这一问题提出一些合理的建议。

Original Version Had SOME Success But Only When:
The ONLY time I had a inkling of success the data came-up (all 6178 rows of it) but no WHERE CLAUSE was applied. This was evidenced by the lack of any WHERE CLAUSE applied into the SQL found in the dataContext.GetCommand(query).CommandText.

Other Version #1 Fails:
And generates this error: "Method System.Object DynamicInvoke(System.Object[]) has no supported translation to SQL."

// VERSION 1:
public static class PredicateBuilder
{
    public static Expression<Func<T, bool>> True<T>() { return f => true; }
    public static Expression<Func<T, bool>> False<T>() { return f => false; }

    public static Expression<Func<T, bool>> Or<T>(this Expression<Func<T, bool>> expr1, Expression<Func<T, bool>> expr2)
    {
        var invokedExpr = Expression.Invoke(expr2, expr1.Parameters.Cast<Expression>());
        return Expression.Lambda<Func<T, bool>>(Expression.OrElse(expr1.Body, invokedExpr), expr1.Parameters);
    }
    public static Expression<Func<T, bool>> And<T>(this Expression<Func<T, bool>> expr1, Expression<Func<T, bool>> expr2)
    {
        var invokedExpr = Expression.Invoke(expr2, expr1.Parameters.Cast<Expression>());
        return Expression.Lambda<Func<T, bool>>(Expression.AndAlso(expr1.Body, invokedExpr), expr1.Parameters);
    }
    public static Expression<Func<T, bool>> StringLike<T>(Expression<Func<T, string>> selector, string pattern)
    {
        var predicate = PredicateBuilder.True<T>();
        var parts = pattern.Split( % );
        if (parts.Length == 1) // not  %  sign
        {
            predicate = predicate.And(s => selector.Compile()(s) == pattern);
        }
        else
        {
            for (int i = 0; i < parts.Length; i++)
            {
                string p = parts[i];
                if (p.Length > 0)
                {
                    if (i == 0)
                    {
                        predicate = predicate.And(s => selector.Compile()(s).StartsWith(p));
                    }
                    else if (i == parts.Length - 1)
                    {
                        predicate = predicate.And(s => selector.Compile()(s).EndsWith(p));
                    }
                    else
                    {
                        predicate = predicate.And(s => selector.Compile()(s).Contains(p));
                    }
                }
            }
        }
        return predicate;
    }
}
// VERSION 1:
public List<QuickFindResult> QueryDocuments(string searchText, string customerSiteId, List<int> filterIds)
{
    var where = PredicateBuilder.True<vw_QuickFindResult>();

    var searches = new List<String>(searchText.Split(   ));
    searches.ForEach(productName =>
    {
        string like = productName.Replace( " ,  % )
                                 .Replace( * ,  % );

        where = PredicateBuilder.StringLike<vw_QuickFindResult>(x => x.DocumentName, like);
    });


    var results = DocumentCollectionService.ListQuickFind(where, null);

    // Do other stuff here...

    return results;
}
// VERSION 1:
public static List<vw_QuickFindResult> ListQuickFind(Expression<Func<vw_QuickFindResult, bool>> where, Expression<Func<vw_QuickFindResult, bool>> orderBy)
{
    var connectionString = GetConnectionString(ES_DOCUMENTS_CONNECTION_NAME);
    List<vw_QuickFindResult> results = null;

    using (HostingEnvironment.Impersonate())
    {
        using (var dataContext = new ES_DocumentsDataContext(connectionString))
        {
            IQueryable<vw_QuickFindResult> query = dataContext.vw_QuickFindResults;
            query = query.Where(where);

            results = query.ToList();
        }
    }

    return results;
}

Other Version #2 Fails:
And generates this error: "Method Boolean Like(System.String, System.String) cannot be used on the client; it is only for translation to SQL."

// VERSION 2:
public List<QuickFindResult> QueryDocuments(string searchText, string customerSiteId, List<int> filterIds)
{
    Func<vw_QuickFindResult, bool> where = null;
    Func<string, Func<vw_QuickFindResult, bool>> buildKeywordPredicate = like => x => SqlMethods.Like(x.DocumentName, like);
    Func<Func<vw_QuickFindResult, bool>, Func<vw_QuickFindResult, bool>, Func<vw_QuickFindResult, bool>> buildOrPredicate = (pred1, pred2) => x => pred1(x) || pred2(x);

    // Build LIKE Clause for the WHERE
    var searches = new List<String>(searchText.Split(   ));
    searches.ForEach(productName =>
    {
        string like = productName.Replace( " ,  % )
                                 .Replace( * ,  % );

        where = (where == null) ? buildKeywordPredicate(like) : buildOrPredicate(where, buildKeywordPredicate(like));
    });

    var results = DocumentCollectionService.ListQuickFind(where, null);

    // Do other stuff here...

    return results;
}
// VERSION 2:
public static List<vw_QuickFindResult> ListQuickFind(Expression<Func<vw_QuickFindResult, bool>> where, Expression<Func<vw_QuickFindResult, bool>> orderBy)
{
    var connectionString = GetConnectionString(ES_DOCUMENTS_CONNECTION_NAME);
    List<vw_QuickFindResult> results = null;

    using (HostingEnvironment.Impersonate())
    {
        using (var dataContext = new ES_DocumentsDataContext(connectionString))
        {
            var query = dataContext.vw_QuickFindResults.AsEnumerable();
            query = query.Where(where);

            results = query.ToList();
        }
    }

    return results;
}