Example of adding, deleting, and modifying new rows in .NET DataGridView

public void subAddRow(DataGridView grdDataGridView, string[] sArrRowData)
        {
            BindingSource dBS = null;
            DataTable dDT = null;

            try
            {
                //DataGridView의 컬럼개수와 새로 입력하려고 하는 컬럼데이터 개수가 맞지 않으면 빠져나간다.
                if (grdDataGridView.ColumnCount != sArrRowData.Length) return;

                this.pgrdDataGridView = grdDataGridView;

                if (this.pgrdDataGridView.DataSource.GetType().Name == "DataTable")
                {
                    dDT = (DataTable)this.pgrdDataGridView.DataSource;
                }
                else if (this.pgrdDataGridView.DataSource.GetType().Name == "BindingSource")
                {
                    //DataGridView에 바인딩된 객체가 BindingSource이면 BindingSource로 형변환 후 DataTable을 가져온다.
                    dBS = (BindingSource)this.pgrdDataGridView.DataSource;
                    dDT = (DataTable)dBS.DataSource;
                }

                dDT.NewRow();
                dDT.Rows.Add(sArrRowData);
            }
            catch
            {
                throw new Exception();
            }
        }

        
        public void subDeleteRow(DataGridView grdDataGridView, int nRowIndex)
        {
            try
            {
                this.pgrdDataGridView = grdDataGridView;
                this.pgrdDataGridView.Rows.RemoveAt(nRowIndex);
            }
            catch
            {
                throw new Exception();
            }
        }

        
        public void subUpdateRow(DataGridView grdDataGridView, int nRowIndex, string[] sArrRowData)
        {
            BindingSource dBS = null;
            DataTable dDT = null;
            try
            {
                //DataGridView의 컬럼개수와 새로 입력하려고 하는 컬럼데이터 개수가 맞지 않으면 빠져나간다.
                if (grdDataGridView.ColumnCount != sArrRowData.Length) return;
        
                this.pgrdDataGridView = grdDataGridView;

                if (this.pgrdDataGridView.DataSource.GetType().Name == "DataTable")
                {
                    dDT = (DataTable)this.pgrdDataGridView.DataSource;
                }
                else if (this.pgrdDataGridView.DataSource.GetType().Name == "BindingSource")
                {
                    //DataGridView에 바인딩된 객체가 BindingSource이면 BindingSource로 형변환 후 DataTable을 가져온다.
                    dBS = (BindingSource)this.pgrdDataGridView.DataSource;
                    dDT = (DataTable)dBS.DataSource;
                }

                //열너비를 수동조정해 GridView의 너비에 맞춘다.
                for (int nLoop = 0; nLoop < sArrRowData.Length; nLoop++)
                {
                    dDT.Rows[nRowIndex][nLoop] = sArrRowData[nLoop];
                }
            }
            catch
            {
                throw new Exception();
            }
        }