How can I join 8 hash table in C# ?

Question

5.00/5 (1 vote)

See more:

C#

I have eight hash table ht1,ht2.............ht8 so i want to load all hashtable data in a ht9 how can this possible.

Posted 27-Aug-14 2:51am

Member 10548197

Add a Solution

3 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

_Asif_ · Answer 1 · 2014-08-27T03:12:00

Please help yourself by helping us, with a one liner question you are expecting us to read your mind, your hard disk, your screen and all :)

While just hitting in the dark a solution could be like, you can put all your hashtables h1..h8 in h9 as follows

Key "h1", value => h1 object reference

C#

Hashtable h9 = new Hashtable();
h9.Add("h1", h1);
....
h9.Add("h8", h8);

and later you can get h7 object by doing this

C#

Hashtable tmpH7 = h9["h7"];

Jameel VM · Answer 2 · 2014-08-27T03:17:00

Try like beow

C#

var ht2 = new Hashtable {{"B", "b"}};

var ht3 = new Hashtable {{"A", "z"}};
var ht4 = new Hashtable {{"C", "c"}};

var l = new List<hashtable> {ht1, ht2, ht4};
var d = new Dictionary<object, object>();

d = l.Aggregate(d, (current, t) => current.Union(t.Cast<dictionaryentry>().ToDictionary(a => a.Key, a => a.Value)).ToDictionary(b => b.Key, b => b.Value));

Hope this helps

vikinghunter · Answer 3 · 2014-08-27T20:25:00

I might use the extension method to solve this problem:

C#

public static class Helper
{
    public static Hashtable Merger(this Hashtable ht, Hashtable ht1)
    {
        var e = ht1.GetEnumerator();
        while (e.MoveNext())
        {
            if (!ht.ContainsKey(e.Key))
                ht.Add(e.Key, e.Value);
        }
        return ht;
    }
}

Call Merger() to merger hash tables:

C#

Hashtable ht1 = new Hashtable();
Hashtable ht2 = new Hashtable();
Hashtable ht3 = new Hashtable();
ht1.Add("a", 1);
ht1.Add("b", 2);
ht2.Add("c", 3);
ht3.Add("d", 4);
Hashtable ht4 = ht1.Merger(ht2).Merger(ht3);

How can I join 8 hash table in C# ?

3 solutions

Solution 1

Solution 2

Solution 3

Add your solution here

Preview 0