private void btnCancel_Click(object sender, EventArgs e)
        {
            this.Close();
        }

        private void btnSave_Click(object sender, EventArgs e)
        {
            this.DialogResult = System.Windows.Forms.DialogResult.OK;
        }

        private void frmAddEditNews_Load(object sender, EventArgs e)
        {
            MyNewsService.MyNewsServiceClient MyNews = new MyNewsService.MyNewsServiceClient();
            tblCategoryIdComboBox.DataSource = MyNews.GetAllCategory();
        }

        private void btnEdit_Click(object sender, EventArgs e)
        {
            if (tblNewsDataGridView.CurrentRow == null)
            {
                MessageBox.Show("سطری برای ویرایش انتخاب کنید");
            }
            else
            {
                //tblNews news = tblNewsDataGridView.CurrentRow.DataBoundItem as tblNews;
                tblNews news  = MyNews.GetNews(Convert.ToInt32(tblNewsDataGridView.CurrentRow.Cells["tblNewsId"].Value));
                frmAddEditNews frmAdd = new frmAddEditNews();
                frmAdd.tblNewsBindingSource.DataSource = news;
                if (frmAdd.ShowDialog() == DialogResult.OK)
                {
                    MyNews.EditNews(news);
                    tblNewsBindingSource.DataSource = MyNews.GetAllNews().Select(p => new { p.tblNewsId, p.tblCategory.CatName, p.Title, p.Description, RegDate = MiladiToShamsi(p.RegDate) });
                }
            }
        }

tblNews news = tblNewsDataGridView.CurrentRow.DataBoundItem as tblNews;

        private void btnAdd_Click(object sender, EventArgs e)
        {
            tblNews news = new tblNews();
            frmAddEditNews frmAdd = new frmAddEditNews();
            frmAdd.tblNewsBindingSource.DataSource = news;
            if (frmAdd.ShowDialog() == DialogResult.OK)
            {
                MyNews.AddNews(news);
                tblNewsBindingSource.DataSource = MyNews.GetAllNews().Select(p => new { p.tblNewsId, p.tblCategory.CatName, p.Title, p.Description, RegDate = MiladiToShamsi(p.RegDate) });
            }
        }

        private void btnRemove_Click(object sender, EventArgs e)
        {
            if (MessageBox.Show("آیا با حذف این سطر اطمینان دارید؟","هشدار",MessageBoxButtons.YesNo) == System.Windows.Forms.DialogResult.Yes)
            {
                MyNews.DeleteNews(Convert.ToInt32(tblNewsDataGridView.CurrentRow.Cells["tblNewsId"].Value));
                tblNewsBindingSource.DataSource = MyNews.GetAllNews().Select(p => new { p.tblNewsId, p.tblCategory.CatName, p.Title, p.Description, RegDate = MiladiToShamsi(p.RegDate) });
            }
        }

<>
    <h1>Hello DNT!</h1>
</>