Unkown array length of arrays; How?

Aaron VanWieren

Not quite sure what you are trying but here goes the basics.... Single Array str[] strArry = new string[3]; //Number of items Double Array str[,] strArry=new string[4,3]; //4 Rows 3 Columns Not too sure about anything past this, but it would be an additional ','. The problem you are having is the 3 in the brackets. The trick here is that an array size has to be declared when initialized, as it cannot be set dynamically, so that is where you are going to have your largest problem. Hope this helps to get you going in the right direction.

T Willey

Yea, I think I have a problem. The way I want to do it doesn't seem to want to work. I see that there is a method of the file class that will read all the lines to a string array. If I use that, then I will know the length, but then I'm reading the information twice, which will be slower. I will still look for other ways. Thanks for the hints.

Tim

Stefan Troschuetz

You could declare a simple class or struct that encapsulates the three values and afterwards use a generic List of this class or struct. The folowing examples uses no useful names and of course the instance fields should be made accessible by using properties.

class Values
{
public string one;
public string two;
public string three;

public Values(string one, string two, string three)
{
    this.one = one;
    this.two = two;
    this.three = three;
}

}

List list = new List();

By the way, the encapsulation of the values furthermore allows them by name which increases readability of the code.

"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." - Rick Cook

www.troschuetz.de

Aaron VanWieren

Could you explain more of what you are trying to do. There are other options for collections besides arrays,maybe a combination of them would work.

T Willey

What I have is a csv file that has the names of my drawings, and the revision level they are at in the repository. I want to take that file and fill in a dialog box with the information for it, and the drawing. I can get the current level from the drawing, I have code for that already. Then if the revision level of the drawing needs to be updated (long story, happens alot) then I can pick it in the dialog box, type what the new revision should be, and have it update the drawing. I'm thinking of having it as a list view, with details shown in the dialog, so all the items will be on one line, and have the options of headers. Where I'm stuck at is, trying to create an way to have a list/array nested in another list/array that will fill out my dialog box. I don't know how long the main lis/array will be, but the sub list/array will only be three items. Hope that explains it a little more clearer. Thanks for helping.

Tim

T Willey

Thank you Stefan. I'm not sure how to use this yet, but it looks like it might work. Let me experiment with it, and if I can't figure it out, I will post back.

Tim

Stefan Troschuetz

Learning by doing; I like that attitude :-D I have one more small example though, because I saw that something was lost in my first posting (the generic part of the list declaration). I've also included two more lines that simply add a value and afterwards access it. Have fun with experimenting :)

List<Values> list = new List<Values>();
list.Add(new Values("a", "b", "c"));
string three = list[0].three;

"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." - Rick Cook

www.troschuetz.de

T Willey

Thanks again Stefan. I think I can make this work. I hate the idea of just asking for people to do things for me. I only ask when I can't find how to do something, either with the help files, or a search on the net. I have not used lists in C# yet, in (Auto)Lisp I use them all the time, and love them. I hope they are kind of the same way in C#.

Tim

Stefan Troschuetz

T.Willey wrote:

I hate the idea of just asking for people to do things for me.

Unfortunately not everybody thinks this way.

T.Willey wrote:

I have not used lists in C# yet, in (Auto)Lisp I use them all the time, and love them. I hope they are kind of the same way in C#.

I don't know (Auto)Lisp, so I can not promise anything, but personally I like list and all the other generic stuff they introduced in .NET 2.0. Gives alot new possibilities and makes programming much easier sometimes.

"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." - Rick Cook

www.troschuetz.de

T Willey

It appears once again I have gone the wrong way. I get caught up in arrays when I try to use C# in place where I don't have to. Instead of putting the items into an array, and then into the dialog box, I just put them into the dialog box when I get them. I thank the people who responded and helped me, I hope you don't think I wasted your time, as I did learn some new things that I think will be helpful in the future. One thing I did look into was the list class, but since the program I'm programming for only use .Net1.1, that doesn't work for this issue at this time. Once again Thanks.

Tim