Remove Null values from Two Dimensional String Array

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Hi,
i want to Remove all Null value entries from the Two Dimensional String Array .How can i do that?

string[,] strArray = new string[1000,1000];

i have used only 500. others entries are null.when i loop it,it runs thro all the 1000 entries.i want to stop it.how?

if it is a single dimensional array they we can use linq like this.
Arr_Formual = Arr_Formual.Where(s => !String.IsNullOrEmpty(s)).ToArray();
but for two dimensional array how to so with linq?

Posted 13-Jun-13 2:31am

John Sathish Tamilarasu

Updated 13-Jun-13 19:05pm

v2

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vinayakJJ 14-Jun-13 1:49am

see my answer

3 solutions

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vinayakJJ · Answer 1 · 2013-06-13T02:52:00

Solution 2

1> declare one counter varibale globally
2> then when you add values to the array increament the counter varibale
3> and at last after all the adding to the array is finish then outside of any for loop add this line

C#

Array.Resize(ref strArray , counter);

Posted 13-Jun-13 2:52am

vinayakJJ

CPallini · Answer 2 · 2013-06-13T02:38:00

Solution 1

You may look for an available sparse matrix implementation in C#[^].

Posted 13-Jun-13 2:38am

CPallini

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John Sathish Tamilarasu 13-Jun-13 8:45am

The size of the array is unpredictable.so just i want to delete all the null valued entries.any possibilities?

CPallini 13-Jun-13 11:02am

Nope. You might use another data structure, for instance a a std::map.

Tom Wauters · Answer 3 · 2013-06-13T18:40:00

Solution 3

If you are sure there are no null values in the ones you used.
Then you can use a while statement to break the loop when that loop
hits the first null value.
In that way you don't have to delete any entries and the
loop doesn't run through all 1000 entries.

Posted 13-Jun-13 18:40pm

Tom Wauters