C# 如何在asp.net中从datagrid中提取文本

这是我的datagrid视图：

<a name="tagCompaniesDatagrid"></a>
        <asp:datagrid id="dgCompanies" Width="100%" ...
            <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>
                <asp:TemplateColumn SortExpression="keyProcessList" HeaderText="Key Processes">
                    <HeaderStyle Width="15%" />
                    <ItemTemplate>
                        <table cellSpacing="0" cellPadding="0" width="100%" border="0">
                            <tr>
                                <td>
                                    <span class="DGNormal" ID="SpanKeyProcesses" Runat="server">
                                        <%# DataBinder.Eval(Container.DataItem,"keyProcessList") %>
                                    </span>
                                </td>
                            </tr>
                        </table>
                    </ItemTemplate>
                </asp:TemplateColumn>
                <asp:TemplateColumn SortExpression="keySkillList" HeaderText="Key Skills">
                    <HeaderStyle Width="15%" />
                    <ItemTemplate>
                        <table cellSpacing="0" cellPadding="0" width="100%" border="0">
                            <tr>
                                <td>
                                    <span class="DGNormal" ID="SpanKeySkills" Runat="server">
                                        <%# DataBinder.Eval(Container.DataItem,"keySkillList") %>
                                    </span>
                                </td>
                            </tr>
                        </table>

                </ItemTemplate>

但我犯了个错误

“无法将'System.Web.UI.HtmlControls.HtmlGenericControl'类型的对象强制转换为'System.Web.UI.WebControls.Label'类型。”

如何从我的datagrid中获取companyName的文本？

您的aspx标记

不是

。因此，请将其转换为

HtmlGenericControl

，并获取内部文本

HtmlGenericControl name = (HtmlGenericControl)
                           item.Cells[j].FindControl("SpanTitle");

string drstring = name.InnerText.Trim(); // Trim to remove extra spaces

---

@用户1314404，我更新了我的答案。使用

InnerHtml

或

InnerText

是一种打字错误。InnerText会很合适的谢谢你，你是对的！但是我能在没有周围空间的情况下得到这个名字吗？当我写文件时，我看到名字前面有一个很大的空格。有没有办法只因为我需要用它来查询数据库就可以得到确切的名字？这是一个简短、准确、完美的答案！我想就我在这个数据网格上的相关问题寻求您的帮助：@user1314404，补充了答案。检查一下，让我知道你现在犯了什么错误

HtmlGenericControl name = (HtmlGenericControl)
                           item.Cells[j].FindControl("SpanTitle");

string drstring = name.InnerText.Trim(); // Trim to remove extra spaces