我如何将数据从代码隐藏填充到 ascx 文件

Question

在我的代码隐藏中，我得到公司名称和地址：

connection.Open();
                    sqlCmd = new SqlCommand(sqlCmd.CommandText, connection);
                    SqlDataReader sqlReader = sqlCmd.ExecuteReader();
                    DataTable dt = new DataTable();


                    sqlReader.Read();
                    dt.Load(sqlReader);
                    for(int i>=0 ; i = dt.Rows.Cout - 1; i--)
                    {
                           string companyName[i] = dt.Rows[i]["companyName"].ToString();
                           sqlCmd.CommandText = addr;
                           sqlCmd.Parameters.AddWithValue("companyName", dt.Rows[i]["companyName"].ToString());

                           using (var addressReader = sqlCmd.ExecuteReader())
                           {
                               if (addressReader.Read())
                               {
                                string address[i] = addressReader["address"].ToString();
                               }
                           }
                     }

所以我想将 companyName[i] 和 address[i] 值放在我的 ascx 文件中。当前它使用datagrid dgcompanies，但我不想使用datagrid，只想重用它当前的表格格式：

<table cellSpacing="0" cellPadding="0" width="100%" border="0">
<tr id="resultsRow" runat="server">
    <td vAlign="top">
        <a name="tagCompaniesDatagrid"></a>
        <asp:datagrid id="dgCompanies" Width="100%" AllowSorting="True" DataKeyField="companyId" AutoGenerateColumns="False"
            AllowPaging="True" AllowCustomPaging="True" OnPageIndexChanged="dgCompanies_Paging" Runat="server" onprerender="dgCompanies_PreRender" >
            <HeaderStyle CssClass="DGColumnHead" />
            <ItemStyle CssClass="DGItemStyle" />
            <AlternatingItemStyle CssClass="DGAlternatingItemStyle" />
            <FooterStyle CssClass="DGColumnFoot" />
            <PagerStyle CssClass="DGPagerStyle" HorizontalAlign="Right" Mode="NumericPages" PageButtonCount="5" />
            <Columns>
                <asp:TemplateColumn SortExpression="companyName" HeaderText="Company Name">
                    <HeaderStyle Width="40%" />
                    <ItemTemplate>
                        <table cellSpacing="0" cellPadding="0" width="100%" border="0">
                            <tr>
                                <td width="95%">
                                    <asp:LinkButton CssClass="LinkButton" id="btnView" Runat="server" CommandName="ViewDetails" CommandArgument="<%# GetViewUrl((System.Data.Common.DbDataRecord)Container.DataItem) %>">
                                        <span ID="SpanTitle" Runat="server">
                                            <%# DataBinder.Eval(Container.DataItem,"companyName") %>
                                        </span>
                                    </asp:LinkButton>
                                    <asp:Label CssClass="DGNormal" ID="lblStatus" Runat="server" text='<%# StatusToText((int) DataBinder.Eval(Container.DataItem,"statusId")) %>'/>
                                    <asp:Image visible='<%# (bool) DataBinder.Eval(Container.DataItem,"WMCCMRated") %>' ID="imgProfiled" Runat="server" ImageUrl="~/images/WMCCMRated.gif" AlternateText="This company has been competency profiled by WMG" />
                                    <asp:Image Visible='<%# !(Convert.IsDBNull(DataBinder.Eval(Container.DataItem,"feedback")))%>' ID="feedback" Runat="server" ImageUrl="~/images/feedback.gif" AlternateText="The number of feedback this company has been received is ->" ImageAlign="Bottom" Height="18px" Width="12px"/>
                                    <asp:Label CssClass="NormalBold" ID="lblFeedback" Runat="server" text='<%# DataBinder.Eval(Container.DataItem,"feedback") %>' ForeColor="Navy"/>
                                </td>
                            </tr>
                            <tr>
                                <td>
                                    <span class="DGNormalBold">
                                        <%# DataBinder.Eval(Container.DataItem,"phoneNumber") %>
                                    </span>
                                </td>
                            </tr>
                            <tr>
                                <td>
                                    <span class="DGNormal" ID="SpanProfile" Runat="server">
                                        <%# cutToNCharacters((string)DataBinder.Eval(Container.DataItem,"Profile")) %>
                                    </span>
                                </td>
                            </tr>
                        </table>
                    </ItemTemplate>
                    <FooterTemplate>
                        <cc1:DropDownCombo ID="dplCompanies" Runat="server" Width="95%" DataTextField="CompanyName" DataValueField="CompanyId" DataSource='<%# GetCompanyNames() %>' />
                    </FooterTemplate>
                </asp:TemplateColumn>
                <asp:TemplateColumn SortExpression="address" HeaderText="Address">
                    <HeaderStyle Width="15%" />
                    <ItemTemplate>
                        <table cellSpacing="0" cellPadding="0" width="100%" border="0">
                            <tr>
                                <td>
                                    <span class="DGNormal" ID="SpanAddress" Runat="server">
                                        <%# DataBinder.Eval(Container.DataItem,"address")%>
                                    </span>
                                </td>
                            </tr>
                        </table>
                    </ItemTemplate>
                </asp:TemplateColumn>

我的理解是，我应该替换这两行：

 <%# DataBinder.Eval(Container.DataItem,"companyName") %>

和

 <%# DataBinder.Eval(Container.DataItem,"address")%>

但我不知道我还需要更改什么以及如何使其自动填充我的一组值。有谁熟悉这个吗？

Answer 1

聊天结束后，这就是你所需要的......

数据需要存储在模型中，然后可以“回显”到页面上。您需要根据需要修改模型...

ascx

<table>
    <tr>
        <td>company</td><td>address</td>
    </tr>
    <asp:Repeater ID="companyRepeater" runat="server">

    <ItemTemplate>
        <tr>
            <td><%#Eval("companyName") %></td><td><%#Eval("address") %></td>
        </tr>
    </Itemtemplate>

    </asp:Repeater>
</table>

后面的代码

public class CompanyModel{
    public string companyName {get; set;}
    public string address {get; set;}
}

sqlCmd = new SqlCommand("SELECT companyName, address FROM company_table", connection);
SqlDataReader sqlReader = sqlCmd.ExecuteReader();
DataTable dt = new DataTable();

List<CompanyModel> companies= new List<CompanyModel>();
sqlReader.Read();
dt.Load(sqlReader);

for(int i = 0; i < dt.Rows.Count; i++)
{
    companies.Add(new CompanyModel 
    { 
        companyName =  dt.Rows[i]["companyName"].ToString(),
        address =  dt.Rows[i]["address"].ToString()
    });
}

companyRepeater.DataSource = companies;
companyRepeater.DataBind();