GridView删除行时出错

Question

我的GridView删除行时提示"除非指定了 DeleteCommand，否则数据源“SqlDataSource1”不支持删除操作。 ",但是删除是有效的.想问一下这问题该如何解决,谢谢先:)
删除行的函数如下:
    protected void newsGrid_RowDeleting(object sender, GridViewDeleteEventArgs e)
    {
        DataKey key = newsGrid.DataKeys[e.RowIndex];
        int id = int.Parse(key[0].ToString());
        using (SqlConnection conn = AdoSql.CreateConn())
        {
            conn.Open();
            string SqlString = "delete from [news] where newsid=" +id;
            SqlCommand command = new SqlCommand(SqlString, conn);
            command.ExecuteNonQuery();
            newsGrid.DataBind();
        }
    }    下面是删除按钮页面文件的代码
<asp:TemplateField HeaderText="删除新闻">
                <ItemTemplate>
                    <asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="False" 
                        CommandName="Delete" Text="删除"
                        OnClientClick="return confirm('确认删除该记录?');"></asp:LinkButton>
                </ItemTemplate>
            </asp:TemplateField>
下面是页面与GridView绑定的数据源的代码
    <asp:SqlDataSource ID="SqlDataSource1" runat="server" 
        ConnectionString="<%$ ConnectionStrings:database %>" 
        
        SelectCommand="SELECT [newsid], [newstitle], [newstime], [newscount] FROM [news]">
    </asp:SqlDataSource>

Answer 1

删除行的函数换了种写法,还是不对...
protected void newsGrid_RowDeleting(object sender, GridViewDeleteEventArgs e)
    {
        int id = Convert.ToInt32(newsGrid.DataKeys[e.RowIndex].Value.ToString());
        using (SqlConnection conn = AdoSql.CreateConn())
        {
            conn.Open();
            string SqlString = "delete from [news] where newsid=" +id;
            SqlCommand command = new SqlCommand(SqlString, conn);
            command.ExecuteNonQuery();            
        }
        newsGrid.DataBind();
    }

Answer 2

DeleteCommand删除数据
参考

Answer 3

非常感谢,加了一句 DeleteCommand=" " 就OK了^^