<DataGridTemplateColumn Header="数量">
                                <DataGridTemplateColumn.CellEditingTemplate>
                                    <DataTemplate>
                                        <TextBlock Text="{Binding Count}" />
                                    </DataTemplate>
                                </DataGridTemplateColumn.CellEditingTemplate>
                                <DataGridTemplateColumn.CellTemplate>
                                    <DataTemplate>
                                        <StackPanel>
                                            <TextBox Text="{Binding Count}"  ></TextBox>
                                            <Button Content="+"></Button>
                                            <Button Content="-"></Button>
                                        </StackPanel>
                                    </DataTemplate>
                                </DataGridTemplateColumn.CellTemplate>
                            </DataGridTemplateColumn>

 /// <summary>
        /// 绑定数据到数据显示表格
        /// </summary>
        private void DataGridProductBind() {

            List<Model.Product> list; 
            if (Variable.ProductBindType.ToLower() == "all")
            {
                list = Variable.Products;
            }
            else if (Variable.ProductBindType.ToLower() == "selected")
            {
                list = Variable.Products.Where(n => n.Count > 0 || n.IsExport).ToList();
            }
            else {
                list = Variable.Products.Where(n => n.ProductCategoryID.Equals(ConvertHelper.ObjectToGuid(Variable.ProductBindType, Guid.Empty))).ToList();
            }
            DemandBind();
            this.dgProduct.ItemsSource = null;
            this.dgProduct.ItemsSource = list;
        }