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  • 十、初学.NET—GridView绑定多表字段

    使用多表左联接、右联接、内联 或者是Where字句将查询结果绑定到GridView上。多表结果也可以绑定到其它控件上。

    后台代码:

    private void SetBind()

        {

            DataSet ds = new DataSet();

            using (SqlConnection conn = new SqlConnection(sConnectionString))

            {

                SqlDataAdapter da = new SqlDataAdapter("SELECT tbReview.ReviewSubmmitState, tbMajor.MajorID, tbMajor.MajorName, tbDepartment.DepartmentName,tbReview.ReviewSumScore,tbReview.ReviewDateTime,tbReview.ReviewSubmmitState  FROM   tbMajor LEFT OUTER JOIN  tbDepartment ON tbMajor.MajorDepartmentID = tbDepartment.DepartmentID  left outer join tbReview on ReviewUserID='" + Session["UserID"].ToString() + "' and ReviewMajorID=MajorID  ORDER BY tbDepartment.DepartmentName, tbMajor.MajorName", conn);

                da.Fill(ds);

                conn.Open();

                {

                    using (SqlCommand cmd = new SqlCommand("select count(*) from tbMajor", conn))

                    {

                        MajorCount = Convert.ToInt16(cmd.ExecuteScalar());

                    }

                }

            }

            DataView dv = new DataView(ds.Tables[0]);

            if (ViewState["SortExpresstion"] != null)

                dv.Sort = ViewState["SortExpresstion"].ToString() + " " + ViewState["SortDirection"].ToString();

            gv_ReviewIndex.DataSource = dv;

            gv_ReviewIndex.DataBind();

     

        }

    前端:然后在GridView控件的绑定行中的控件的属性绑定到查询结果的字段。

    <asp:TemplateField HeaderText="所属系部名称" SortExpression="DepartmentName">

              <ItemTemplate>

                    <asp:Label ID="lb_Department" runat="server" Text='<%# Bind("DepartmentName") %>'></asp:Label>

              </ItemTemplate>

    </asp:TemplateField>

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  • 原文地址:https://www.cnblogs.com/liuyuanhao/p/3012975.html
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