Need help in writing algorithm for runtime folder creation

Hi,

For your Problem, i got a solution.... it works well for me... try it...

[ i didn't use tree view... i check it with two buttons and a textbox.... textbox is used to get name of folder to delete]

1.Create an Array and two counters...and initialize them with zero
   like below

int[] ar = new int[100];// contains index of deleted folders
int co = 0; //folder index counter
int arc = 0; // array size counter


2.add this code in the add folder area

int na = co;//na refers name index of array... co refers index counter

            if (arc > 0) //check availability of deleted folder index array
            {
             
                  na = ar[0];//assign first value from array

                for (int i = 0; i < arc-1; i++) //remove first value from array
                    ar[i] = ar[i + 1];

                Directory.CreateDirectory("c:\\NewFolder" + na);//create a folder with deleted folder index

                arc--;//reduce array size counter
            }
            else
            {
                Directory.CreateDirectory("c:\\NewFolder" + na); //create a folder with index counter

                co++;//increase index counter
            }


3.add this code in delete a folder area

            Directory.Delete("c:\\NewFolder" + textBox1.Text); //delete a folder with given index...textbox1.text will be an index such as 0,1,2 etc...

            ar[arc++] = int.Parse(textBox1.Text); //add deleted folder index into array...


let me explain....

in this whenever you trying to create a folder it will check out the deleted folder index... if it empty then create a new folder with index counter and increase its value...

if array is not empty then create a folder with arrays first value...and remove that value from array..and decrease array size counter....


whenever you trying to delete a folder..it simply delete the folder and add its index to array and increase arrays counter...

so its start with NewFolder0,NewFolder1,NewFolder2,NewFolder3...etc..
if u delete NewFolder1 and 2...then those indexes will be added into array..now array contains 1 and 2...

 if you again create a folder...its name will be NewFolder1 and after that NewFolder2 after that NewFolder4..and goes on...

try this.... it may help you....