how to loop thru an hashtable?

[PT Exorcist]

i want to loop without the "for each" thru a hashtable..i know i've done this before..how do i do it?

[powdir]

DUMB ANSWER ...censored by stupidity police

[PT Exorcist]

err you're not looping thru the hashtable you're just repeating the "VALUE" 2 times, what i mean by looping is itenerating by all the collection

and about my posts 95% of them are of posts asking things because i really know nothing!

[powdir]

I made an arse of it there...i was out late last night

Apolgies

        Dim ht As New Hashtable()
        ht.Add("KEY1", "VALUE1")
        ht.Add("KEY2", "VALUE2")
        Dim ie As IEnumerator = ht.GetEnumerator
        While ie.MoveNext
            Debug.WriteLine(CType(ie.Current, DictionaryEntry).Value)
        End While

95% of my bum answers are because i dont listen...

[PT Exorcist]

err just in case the "for each" is an automatic use of .GetEnumerator() , in fact you can only use for each in classes that support the IEnumerator..so i dont want to use it as it doesnt allow that some items get added when the loop is ocurring...i really must use a regular loop (that ones that in c# are for (int i = 0; i<something;i++) {} ) because otherwise some errors will be raised thru my code!

i asked in vb.net forums as more ppl look here than in c# forums lol but i understand vb.net sintax so there is no problem

[DevGrp]

Try anyone of these loops

foreach(DictionaryEntry de in ht)
{
	MessageBox.Show(de.Key.ToString() + " " + de.Value.ToString());
}
		
for(int i=0; i <= ht.Count; i++)
{
	//do what you want here
}

[PT Exorcist]

devgrp i'd like to see the For(;; code and not the foreach..could u accomplish it? how do i refer to each item using the for(;; sintax?

[DevGrp]

I dont think you can with the for loop. The hashtable only supports an object indexer. You provide the key and it gives you the value, like this

string name = ht["key"].ToString();

I think you might have to use the foreach loop. I'll take another look though.

[PT Exorcist]

imagine i have a function that every 5 seconds lists all the the things of an hashtable to a listbox..and that sometimes i add 10 or 20 items to that hashtable..if when i am listing it is adding something to the hashtable an error will ocurr..for what i've reed up the only way to avoid it is to use a for(;; instead of a for each!

[DevGrp]

Originally posted by PT Exorcist
imagine i have a function that every 5 seconds lists all the the things of an hashtable to a listbox..and that sometimes i add 10 or 20 items to that hashtable..if when i am listing it is adding something to the hashtable an error will ocurr..for what i've reed up the only way to avoid it is to use a for(;; instead of a for each!

I'm not quite following. Write some pseudo code. That might help.

[Edneeis]

Is that because of some threading issue? Or else how can you be adding to it and looping in it at the sametime? If so I believe you can use SyncLock to avoid any trouble.

[PT Exorcist]

good idea! i thin synclock will do the job!

[PT Exorcist]

yep it seems to have worked! tks by the idea!