Solved

Search Multidimensional Array for Specific Column Value

Posted on 2014-01-23
4
396 Views
Last Modified: 2014-01-23
I have the following array:

      // Declare array  
        public string[,] arrDeck = new string[3, 4];
 
        // Constructor
        public MainPage()
        {
            InitializeComponent();

           // populate multidimension array (two dimensions)
            arrDeck[0, 0] = "a2";
            arrDeck[0, 1] = "This is not a recommended starting hand";
            arrDeck[0, 2] = "5.4 Pct";
            arrDeck[0, 3] = "153";

            arrDeck[1, 0] = "a2s";
            arrDeck[1, 1] = "You need 3 callers in an unraised pot. You need 4 callers in a raised pot.";
            arrDeck[1, 2] = "12.7 Pct";
            arrDeck[1, 3] = "39";
        }

How do I search to find "a2s" ?

Thanks,
0
Comment
Question by:Dovberman
  • 3
4 Comments
 
LVL 35

Accepted Solution

by:
Robert Schutt earned 300 total points
ID: 39803275
Maybe something like this:
        /// <summary>
        /// Search 2 dimensional array for a specific string in a specific position
        /// </summary>
        /// <param name="arr">the array to search through</param>
        /// <param name="fnd">the string to find</param>
        /// <param name="ps">the position (2nd array dimension) where the string must be located</param>
        /// <returns>the index (1st dimension) where it was found, or -1 if not found</returns>
        protected int getIndex(string[,] arr, string fnd, int ps) {
            if (ps >= 0 && ps <= arr.GetUpperBound(1)) {
                int p = -1;
                while (++p <= arr.GetUpperBound(0)) {
                    if (arr[p, ps] != null && arr[p, ps].Equals(fnd))
                        return p;
                }
            }
            return -1;
        }

Open in new window

Example for calling code:
            int i = getIndex(arrDeck, "a2s", 0);
            string message;
            if (i >= 0) {
                message = arrDeck[i, 1];
            } else {
                message = "not found";
            }

Open in new window

I chose to return index only because you may want to reference the other items from the same calling code as well.
0
 

Author Comment

by:Dovberman
ID: 39803637
I have never used this technique before.  It seems more efficient than a For each or Do Until loop.  I will step through it to get a better understanding.

Thanks,
0
 

Author Comment

by:Dovberman
ID: 39803677
Yes, the row index is what I needed.  Then I can get other columns from the found row.
Thank  you,
0
 

Author Closing Comment

by:Dovberman
ID: 39803683
Yes, the row index is what I needed.  Then I can get other columns from the found row.
Thank  you,
0

Featured Post

Top 6 Sources for Identifying Threat Actor TTPs

Understanding your enemy is essential. These six sources will help you identify the most popular threat actor tactics, techniques, and procedures (TTPs).

Join & Write a Comment

Suggested Solutions

Title # Comments Views Activity
Asp/Net Validation date Issue 9 38
SQl help with selection 14 44
Setting runtime form location 4 19
Saveas need to save a copy 16 11
Introduction This article shows how to use the open source plupload control to upload multiple images. The images are resized on the client side before uploading and the upload is done in chunks. Background I had to provide a way for user…
Entering time in Microsoft Access can be difficult. An input mask often bothers users more than helping them and won't catch all typing errors. This article shows how to create a textbox for 24-hour time input with full validation politely catching …
This is Part 3 in a 3-part series on Experts Exchange to discuss error handling in VBA code written for Excel. Part 1 of this series discussed basic error handling code using VBA. http://www.experts-exchange.com/videos/1478/Excel-Error-Handlin…
Polish reports in Access so they look terrific. Take yourself to another level. Equations, Back Color, Alternate Back Color. Write easy VBA Code. Tighten space to use less pages. Launch report from a menu, considering criteria only when it is filled…

706 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

14 Experts available now in Live!

Get 1:1 Help Now