UnityEditor.VerticalGridWithSplitter.OpenSplit C# (CSharp) Method

        public void OpenSplit(int splitAfterRowIndex, int numItems)
        {
            int num = (int) Mathf.Ceil(((float) numItems) / ((float) this.m_Columns));
            float num2 = (((num * (this.itemSize.y + this.verticalSpacing)) - this.verticalSpacing) + this.topMargin) + this.bottomMargin;
            this.m_SplitAfterRow = splitAfterRowIndex;
            this.m_TargetSplitHeight = num2;
            this.m_LastSplitUpdate = Time.realtimeSinceStartup;
        }