private void edit_btn_Click(object sender, EventArgs e)
        {
            DataManipulation.FillTextBoxesAndComboBoxesWithGridViewRowData(this.editVendors_panel, this.dataGridEditVendors);

            this.vendorsData.VendorOldName = this.VendorName_txt.Text;
        }
 private void edit_btn_Click(object sender, EventArgs e)
 {
     DataManipulation.FillTextBoxesAndComboBoxesWithGridViewRowData(this.EditProducts_Panel, this.dataGridEditProducts);
     this.productsData.ProductOldName = this.ProductName_txt.Text;
 }
        private void edit_btn_Click(object sender, EventArgs e)
        {
            DataManipulation.FillTextBoxesAndComboBoxesWithGridViewRowData(this.EditCategries_Panel, this.dataGridEditCategories);

            this.categoriesData.CategoryOldName = this.CategoryName_txt.Text;
        }