C#

public partial class Form1 : Form
    {
        private DataSet Dataset1;
        private FileDialog FileDialog1;
        private StringCollection rows ;
      

        public Form1()
        {
            InitializeComponent();

            Dataset1 = new DataSet();
            Dataset1.ReadXml(@"..\..\Current.xml");
            dataGridView1.DataSource = Dataset1;
            dataGridView1.DataMember = "item";


            this.FormClosing += new FormClosingEventHandler(FormClosing1);
            this.Activated += new EventHandler(FrmActive);

            FileDialog1 = new OpenFileDialog();



            // Restore the columns' state
            StringCollection cols = new StringCollection();
            cols = Properties.Settings.Default.DataGridViewFormColumns;
            for (int i = 0; i < cols.Count; ++i)
            {
                string[] array = cols[i].Split(',');
                this.dataGridView1.Columns[i].DisplayIndex = Int16.Parse(array[0]);
                this.dataGridView1.Columns[i].Width = Int16.Parse(array[1]);
                this.dataGridView1.Columns[i].Visible = bool.Parse(array[2]);
            }

          }

        private void FrmActive(object sender, EventArgs e)
        {
            SetPics();

            // I do this only once when the form starts ... so remove handler //
            this.Activated -= new EventHandler(FrmActive);
            this.dataGridView1.Rows[0].Height = 100;

            // get settings
            rows = new StringCollection();
            rows = Properties.Settings.Default.DataGridViewFormRows;
            for (int i = 0; i < rows.Count; ++i)
            {
                this.dataGridView1.Rows[i].Height = Convert.ToInt16(rows[i]);
            }
        }


       // here i want to keep the column and rows height , here is NO problem
        private void FormClosing1(object sender, EventArgs e)
        {
            Dataset1.WriteXml(@"..\..\Current.xml");
            StringCollection stringCollection = new StringCollection();
            foreach (DataGridViewColumn column in this.dataGridView1.Columns)
                {
                stringCollection.Add(string.Format("{0},{1},{2}",column.DisplayIndex,column.Width,column.Visible));
                }
            Properties.Settings.Default.DataGridViewFormColumns = stringCollection;
            Properties.Settings.Default.Save();

            stringCollection = new StringCollection();
            foreach (DataGridViewRow row in this.dataGridView1.Rows)
                { 
                  stringCollection.Add(Convert.ToString(row.Height));
                }
            Properties.Settings.Default.DataGridViewFormRows = stringCollection;
            Properties.Settings.Default.Save();
        }


        // I load the pics after Form active...
        private void SetPics()
        {
            for (int i = 0; i < dataGridView1.Rows.Count - 1; i++)
            {
                string ImagePath = Convert.ToString(dataGridView1.Rows[i].Cells["Picture_Path"].Value);
                System.Drawing.Bitmap Image1 = new System.Drawing.Bitmap(ImagePath);
                dataGridView1.Rows[i].Cells["Picture"].Value = Image1;
            }
        }