无法在ItemTemplate中找到文本框控件

本文关键字：文本控件 ItemTemplate | 更新日期: 2023-09-27 18:19:12

我无法在gridview中找到文本框控件。下面的代码总是返回NULL

<asp:TemplateField>
    <HeaderTemplate>
        <table cellpadding="0" cellspacing="0" style="padding-left: 0px; padding-right: 0px;
                margin-left: 0px">
            <tr>
                <td>
                    &#160;&#160;
                </td>
            </tr>
            <tr>
                <td align="center">
                    SkillColumn1
                </td>
            </tr>
        </table>
    </HeaderTemplate>
    <ItemTemplate>
        <table cellpadding="0" cellspacing="0" style="width: 100%">
            <tr style="width: 100%">
                <td style="width: 25%">
                    <asp:TextBox  ID="txt_Skill1" runat="server" Text='<%# Eval("Skill1_value") %>'
                            CssClass="tms-secondaryRowTextBoxNew" Width="35%" />
                </td>
            </tr>
        </table>
    </ItemTemplate>

完整标记:

<asp:GridView ID="gvLocView" runat="server" AutoGenerateColumns="False" CellPadding="0" Width="100%" BorderColor="#013963" BorderStyle="Solid" BorderWidth="1px" EmptyDataText="No Data Available" onrowdatabound="gvLocView_RowDataBound"> <Columns> <asp:TemplateField> <HeaderTemplate> <table cellpadding="0" cellspacing="0" style="padding-left: 0px; padding-right: 0px; margin-left: 0px"> <tr> <td align="center">    </td> </tr> <tr> <td align="center"> Location </td> </tr> </table> </HeaderTemplate> <ItemTemplate> <table cellpadding="0" cellspacing="0" style="width: 100%"> <tr style="width: 100%"> <td style="width: 50%"> <asp:Label ID="lblLocation" runat="server" Text='<%# Eval("Location") %>' CssClass="tms-secondaryRowTextBoxNew" /> </td> </tr> </table> </ItemTemplate> <HeaderStyle BorderColor="#013963" BorderStyle="Solid" BorderWidth="1px" Width="14%" /> <ItemStyle BorderColor="#013963" BorderStyle="Solid" BorderWidth="1px" /> </asp:TemplateField> <asp:TemplateField> <HeaderTemplate> <table cellpadding="0" cellspacing="0" style="padding-left: 0px; padding-right: 0px; margin-left: 0px"> <tr> <td>    </td> </tr> <tr> <td align="center"> Quarter </td> </tr> </table> </HeaderTemplate> <ItemTemplate> <table cellpadding="0" cellspacing="0" style="width: 100%"> <tr style="width: 100%"> <td style="width: 100%"> <asp:Label ID="lblQuarter" runat="server" Text='<%# Eval("Quarter") %>' CssClass="tms-secondaryRowTextBoxNew" /> </td> </tr> </table> </ItemTemplate> <HeaderStyle BorderColor="#013963" BorderStyle="Solid" BorderWidth="1px" Width="13%" /> <ItemStyle BorderColor="#013963" BorderStyle="Solid" BorderWidth="1px" /> </asp:TemplateField> <asp:TemplateField> <HeaderTemplate> <table cellpadding="0" cellspacing="0" style="padding-left: 0px; padding-right: 0px; margin-left: 0px"> <tr> <td>    </td> </tr> <tr> <td align="center"> SkillColumn1 </td> </tr> </table> </HeaderTemplate> <ItemTemplate> <table cellpadding="0" cellspacing="0" style="width: 100%"> <tr style="width: 100%"> <td style="width: 25%"> <asp:TextBox ID="txt_Skill1" runat="server" Text='<%# Eval("Skill1_value") %>' CssClass="tms-secondaryRowTextBoxNew" Width="35%" /> </td> </tr> </table> </ItemTemplate> <HeaderStyle BorderColor="#013963" BorderStyle="Solid" BorderWidth="1px" Width="9%" /> <ItemStyle BorderColor="#013963" BorderStyle="Solid" BorderWidth="1px" /> </asp:TemplateField> <asp:TemplateField> <HeaderTemplate> <table cellpadding="0" cellspacing="0" style="padding-left: 0px; padding-right: 0px; margin-left: 0px"> <tr> <td>    </td> </tr> <tr> <td align="center"> SkillColumn2 </td> </tr> </table> </HeaderTemplate> <ItemTemplate> <table cellpadding="0" cellspacing="0" style="width: 100%"> <tr style="width: 100%"> <td style="width: 25%"> <asp:TextBox ID="txt_Skill2" runat="server" Text='<%# Eval("Skill2_value") %>' CssClass="tms-secondaryRowTextBox" Width="35%" /> </td> </tr> </table> </ItemTemplate> <HeaderStyle BorderColor="#013963" BorderStyle="Solid" BorderWidth="1px" Width="9%" /> <ItemStyle BorderColor="#013963" BorderStyle="Solid" BorderWidth="1px" /> </asp:TemplateField> <asp:TemplateField> <HeaderTemplate> <table cellpadding="0" cellspacing="0" style="padding-left: 0px; padding-right: 0px; margin-left: 0px"> <tr> <td>    </td> </tr> <tr> <td align="center"> SkillColumn3 </td> </tr> </table> </HeaderTemplate> <ItemTemplate> <table cellpadding="0" cellspacing="0" style="width: 100%"> <tr style="width: 100%"> <td style="width: 25%"> <asp:TextBox ID="txt_Skill3" runat="server" Text='<%# Eval("Skill3_value") %>' CssClass="tms-secondaryRowTextBox" Width="35%" /> </td> </tr> </table> </ItemTemplate> <HeaderStyle BorderColor="#013963" BorderStyle="Solid" BorderWidth="1px" Width="9%" /> <ItemStyle BorderColor="#013963" BorderStyle="Solid" BorderWidth="1px" /> </asp:TemplateField> <asp:TemplateField> <HeaderTemplate> <table cellpadding="0" cellspacing="0" style="padding-left: 0px; padding-right: 0px; margin-left: 0px"> <tr> <td>    </td> </tr> <tr> <td align="center"> SkillColumn4 </td> </tr> </table> </HeaderTemplate> <ItemTemplate> <table cellpadding="0" cellspacing="0" style="width: 100%"> <tr style="width: 100%"> <td style="width: 25%"> <asp:TextBox ID="txt_Skill4" runat="server" Text='<%# Eval("Skill4_value") %>' CssClass="tms-secondaryRowTextBox" Width="35%" /> </td> </tr> </table> </ItemTemplate> <HeaderStyle BorderColor="#013963" BorderStyle="Solid" BorderWidth="1px" Width="9%" /> <ItemStyle BorderColor="#013963" BorderStyle="Solid" BorderWidth="1px" /> </asp:TemplateField> <asp:TemplateField> <HeaderTemplate> <table cellpadding="0" cellspacing="0" style="padding-left: 0px; padding-right: 0px; margin-left: 0px"> <tr> <td>    </td> </tr> <tr> <td align="center"> SkillColumn5 </td> </tr> </table> </HeaderTemplate> <ItemTemplate> <table cellpadding="0" cellspacing="0" style="width: 100%"> <tr style="width: 100%"> <td style="width: 25%"> <asp:TextBox ID="txt_Skill5" runat="server" Text='<%# Eval("Skill5_value") %>' CssClass="tms-secondaryRowTextBox" Width="35%" /> </td> </tr> </table> </ItemTemplate> <HeaderStyle BorderColor="#013963" BorderStyle="Solid" BorderWidth="1px" Width="9%" /> <ItemStyle BorderColor="#013963" BorderStyle="Solid" BorderWidth="1px" /> </asp:TemplateField> <asp:TemplateField> <HeaderTemplate> <table cellpadding="0" cellspacing="0" style="padding-left: 0px; padding-right: 0px; margin-left: 0px"> <tr> <td>    </td> </tr> <tr> <td align="center"> SkillColumn6 </td> </tr> </table> </HeaderTemplate> <ItemTemplate> <table cellpadding="0" cellspacing="0" style="width: 100%"> <tr style="width: 100%"> <td style="width: 25%"> <asp:TextBox ID="txt_Skill6" runat="server" Text='<%# Eval("Others") %>' CssClass="tms-secondaryRowTextBox" Width="35%" /> </td> </tr> </table> </ItemTemplate> <HeaderStyle BorderColor="#013963" BorderStyle="Solid" BorderWidth="1px" Width="9%" /> <ItemStyle BorderColor="#013963" BorderStyle="Solid" BorderWidth="1px" /> </asp:TemplateField> <asp:TemplateField> <HeaderTemplate> <table cellpadding="0" cellspacing="0" style="padding-left: 0px; padding-right: 0px; margin-left: 0px"> <tr> <td>    </td> </tr> <tr> <td align="center"> Total </td> </tr> </table> </HeaderTemplate> <ItemTemplate> <table cellpadding="0" cellspacing="0" style="width: 100%"> <tr style="width: 100%"> <td style="width: 100%"> <asp:Label ID="lblTotal" runat="server" Text='<%# Eval("Total") %>' CssClass="tms-secondaryRowTextBoxNew" /> </td> </tr> </table> </ItemTemplate> <HeaderStyle BorderColor="#013963" BorderStyle="Solid" BorderWidth="1px" Width="9%" /> <ItemStyle BorderColor="#013963" BorderStyle="Solid" BorderWidth="1px" /> </asp:TemplateField> </Columns> <EditRowStyle CssClass="tms-primaryRow_new" /> <HeaderStyle Font-Bold="True" ForeColor="White" CssClass="tms-gridViewHeader_fy11" HorizontalAlign="Center" /> <PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" /> <SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" /> </asp:GridView>
后台代码>:
if (e.Row.RowType == DataControlRowType.Header) { int counter=0; for (int j = 1,col=2; j <= 7; j++,col++) { TextBox t = (TextBox)e.Row.Cells[col].FindControl("txt_Skill" + j.ToString()); if (t != null) { t = e.Row.FindControl("txt_Skill" + j.ToString()) as TextBox; if (!string.IsNullOrEmpty(strSkillArray[counter])) t.Text = strSkillArray[counter].ToString(); } } }
:
包含。HttpException未被用户代码处理
消息= "数据绑定:"System.Data。DataRowView'不包含属性名称为"Skill1_value"。源= "系统。网络"
ErrorCode = -2147467259加:在System.Web.UI.DataBinder。GetPropertyValue(对象容器，字符串propName)在System.Web.UI.DataBinder。Eval(对象容器，字符串[]expressionParts)在System.Web.UI.DataBinder。Eval(对象容器，字符串表达式)在System.Web.UI.TemplateControl。Eval(字符串表达式)在ASP.location_aspx。_DataBinding_control53(对象发送方，EventArgs e) ind:'ABC'Location。aspx: 251行在System.Web.UI.Control。OnDataBinding (EventArgs e)在System.Web.UI.Control。DataBind(布尔raiseOnDataBinding)在System.Web.UI.Control.DataBind ()在System.Web.UI.Control.DataBindChildren ()在System.Web.UI.Control。DataBind(布尔raiseOnDataBinding)在System.Web.UI.Control.DataBind ()在System.Web.UI.Control.DataBindChildren ()在System.Web.UI.Control。DataBind(布尔raiseOnDataBinding)在System.Web.UI.Control.DataBind ()在System.Web.UI.WebControls.GridView。CreateRow(Int32 rowIndex, Int32 dataSourceIndex, DataControlRowType rowType, DataControlRowState)rowState, Boolean dataBind, Object dataItem, DataControlField[]字段，TableRowCollection行，PagedDataSourceSystem.Web.UI.WebControls.GridView.CreateChildControls (IEnumerable数据源，布尔数据绑定)System.Web.UI.WebControls.CompositeDataBoundControl.PerformDataBinding (IEnumerable数据)System.Web.UI.WebControls.GridView.PerformDataBinding (IEnumerable数据)System.Web.UI.WebControls.DataBoundControl.OnDataSourceViewSelectCallback (IEnumerable数据)System.Web.UI.DataSourceView.Select (DataSourceSelectArguments参数:DataSourceViewSelectCallback在System.Web.UI.WebControls.DataBoundControl.PerformSelect ()在System.Web.UI.WebControls.BaseDataBoundControl.DataBind ()在System.Web.UI.WebControls.GridView.DataBind ()在d:'ABC'Location.aspx.cs:第368行在的位置。Page_Load(对象发送者，EventArgs e)在d:'ABC'Location.aspx.cs:第70行在System.Web.Util.CalliHelper。EventArgFunctionCaller(IntPtr fp, Object 0, Object t, EventArgs e)在System.Web.Util.CalliEventHandlerDelegateProxy。回调(对象发送者,EventArgs e)在System.Web.UI.Control。OnLoad (EventArgs e)在System.Web.UI.Control.LoadRecursive ()在System.Web.UI.Page。ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
InnerException:

您的异常与您发布的代码无关。页面无法将你的网格绑定到你给它的任何数据源，因为它无法在你的数据源中找到Skill1_value。

HeaderTemplate中没有任何内容。您必须使用DataControlRowType.DataRow来查找行类型。

if (e.Row.RowType == DataControlRowType.DataRow) { int counter=0; for (int j = 1,col=2; col <= 7; j++,col++,counter++) { TextBox t = (TextBox)e.Row.Cells[col].FindControl("txt_Skill" + j.ToString()); if (t != null) { if (!string.IsNullOrEmpty(strSkillArray[counter])) t.Text = strSkillArray[counter].ToString(); } } }

你的文本框在itemtemplate中而你在header模板中搜索这就是为什么

请按以下方式更新代码

change if condition

if (e.Row.RowType == DataControlRowType.DataRow)
查找文本框
的代码
TextBox txt_Skill= (TextBox)e.Row.FindControl("txt_Skill");