UnityEditor.VerticalGrid.CalcColumns C# (CSharp) Method

        public int CalcColumns()
        {
            float num = !this.useFixedHorizontalSpacing ? this.minHorizontalSpacing : this.fixedHorizontalSpacing;
            int a = (int) Mathf.Floor(((this.fixedWidth - this.leftMargin) - this.rightMargin) / (this.itemSize.x + num));
            return Mathf.Max(a, 1);
        }