从 CompleteWizardStep 获取对象 (FileUpload)

Posted 2023-02-22

【中文标题】从 CompleteWizardStep 获取对象 (FileUpload)

【英文标题】：Get an object (FileUpload) from a CompleteWizardStep

【发布时间】：2015-12-31 01:17:31

【问题描述】：

我在尝试访问 ButtonImagem_Click 的事件 ButtonImagem_Click 时遇到困难，该事件位于 C# 后面的代码中，该事件位于 CreateUserWizard 上的 CompleteWizardStep 内。

我的代码在哪里：

<asp:CreateUserWizard ID="CreateUserWizard1" runat="server" OnCreatedUser="CreateUserWizard1_CreatedUser">
    <WizardSteps>
        <asp:CreateUserWizardStep ID="CreateUserWizardStep1" runat="server" Title="Criar conta">
            <ContentTemplate>
                <%--...--%>
            </ContentTemplate>
        </asp:CreateUserWizardStep>
        <asp:CompleteWizardStep runat="server" ID="CompleteWizardStep1">
            <ContentTemplate>
                <asp:FileUpload ID="FileUpload1" runat="server" /><br />
                <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="FileUpload1" ErrorMessage=""></asp:RequiredFieldValidator>
                <asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" ControlToValidate="FileUpload1" ErrorMessage="Apenas são aceites imagens." ValidationExpression="(.*\.([Gg][Ii][Ff])|.*\.([Jj][Pp][Gg])|.*\.([Bb][Mm][Pp])|.*\.([pP][nN][gG])|.*\.([tT][iI][iI][fF])$)"></asp:RegularExpressionValidator>
                <br /><asp:Button ID="ButtonImagem" runat="server" Text="Concluir" OnClick="ButtonImagem_Click" />
            </ContentTemplate>
        </asp:CompleteWizardStep>
    </WizardSteps>
</asp:CreateUserWizard>

【问题讨论】：

能否添加显示您尝试访问 FileUpload 控件的代码？也许here 建议的解决方案可能会有所帮助。

【参考方案1】：

找到了解决办法，只需要像这样添加ContentTemplateContainer：

FileUpload FileU = (FileUpload)CompleteWizardStep1.ContentTemplateContainer.FindControl("FileUpload1");