Formatting large numbers in C#

Tag: c#,.net,unity3d,formatting

I am using Unity to make an "Incremental Game" also known as an "Idle Game" and I am trying to format large numbers. For example, when gold gets to say 1000 or more, it will display as Gold: 1k instead of Gold: 1000.

using UnityEngine;
using System.Collections;

public class Click : MonoBehaviour {

    public UnityEngine.UI.Text GoldDisplay;
    public UnityEngine.UI.Text GPC;
    public double gold = 0.0;
    public int gpc = 1;

    void Update(){
        GoldDisplay.text = "Gold: " +  gold.ToString ("#,#");
        //Following is attempt at changing 10,000,000 to 10.0M
        if (gold >= 10000000) {
        GoldDisplay.text = "Gold: " + gold.ToString ("#,#M");
        }
        GPC.text = "GPC: " + gpc;
    }

    public void Clicked(){
            gold += gpc;
    }
}

I have tried other examples while searching online, which is where gold.ToString ("#,#"); came from, however none of them worked.

Best How To :

I am using this method in my project, you can use too. Maybe there is better way, I dont know.

public void KMBMaker( Text txt, double num )
    {
        if( num < 1000 )
        {
            double numStr = num;
            txt.text = numStr.ToString() + "";
        }
        else if( num < 1000000 )
        {
            double numStr = num/1000;
            txt.text = numStr.ToString() + "K";
        }
        else if( num < 1000000000 )
        {
            double numStr = num/1000000;
            txt.text = numStr.ToString() + "M";
        }
        else
        {
            double numStr = num/1000000000;
            txt.text = numStr.ToString() + "B";
        }
    }

and use this method in your update like this.

void Update()
{
     KMBMaker( GoldDisplay.text, gold );
}

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