How to load Arraylist to Array

C# Corner

Dinesh Santhalingam

9y1.7kJava

I have a Array list.I want to convert this into separate array.

My Array list name is [obj];

obj={ {[A],[B]} ,

{[C],[D]},

{[E],[F]} }

Now I want to convert it to separate Array.

array x1= {[A],[B]};

array x2= {[C],[D]};

array x3= {[E],[F]};

What am tried:

for (var i = 0; i < obj.length; i++) {
X = obj[i];
}

Please help me to achieve this?

9 Replies

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Khaja Moizuddin9y ago
Try this https://msdn.microsoft.com/en-us/library/fcyyh2hb(v=vs.110).aspx https://www.dotnetperls.com/convert-arraylist-array http://stackoverflow.com/questions/8924869/how-to-convert-arraylist-into-string-arraystring-in-c-sharp hope this helps
Bikesh Srivastava9y ago
i think best option is use foreach loop and store one by one in separte array.
Suthish Nair9y ago
string[] array will have the collection... you can use array[0]... array[i]
Dinesh Santhalingam9y ago
Thanks for your guidance.@
Chetan Ranpariya
Chetan Ranpariya9y ago
Dinesh,

You can not generate the variable names at runtime like X1, X2 and so on.

Here you have obj, which is Array of Arrays.
Instead of creating another array out of it why don't you use it directly where ever you want to use it? As following.
for (var i = 0; i < obj.length; i++) {
    var arr = obj[1];
    //do looping with arr to access its values
    for(var j = 0; j< arr.length;j++)
    {
        //use arr[i] to do whaterver you want...
    }
}
I hope this will help you.

This is a simple logic.

Thanks and regards,
Chetan Ranpariya
[No programming language is helpful if logic is not clear]
Dinesh Santhalingam9y ago
Can you please explain more about what the function doing? @
Suthish Nair
Dinesh Santhalingam9y ago
The last array in array list only append to the X.I want to create X1,X2,X3 arrays and append that three arrays from Arraylist @
Chetan Ranpariya
Suthish Nair9y ago
1. string[] array = obj.ToArray(typeof(string)) as string[];
2. or
3. string[] array = (string[])obj.ToArray(typeof(string));

Chetan Ranpariya9y ago

Hi Dinesh,

What problem did you face with your approach?

Did you get any error or exception?

Thanks and regards,
Chetan Ranpariya

How to load Arraylist to Array

Chetan Ranpariya

Suthish Nair

Chetan Ranpariya