DetailsView 将文本更改为 ItemInserted 事件上的标签

Question

我在详细信息视图中有标签。 在触发事件 ItemInserted 后，我需要更改 DetailsView 内此标签的 Text 属性。

脚本不会引发任何错误，但标签不会更改其文本属性。 有什么想法我做错了吗？

感谢您抽出时间！

标记：

<asp:DetailsView ID="uxInsertAuthorInput" runat="server" AutoGenerateRows="False"
        DataKeyNames="AuthorId" DataSourceID="EntityDataSourceCreateAuthor" DefaultMode="Insert"
        OnItemInserting="uxInsertAuthor_ItemInserting" OnItemInserted="uxInsertAuthorInput_ItemInserted">
    <Fields>
        <asp:TemplateField HeaderText="First Name" SortExpression="FirstName">
            <ItemTemplate>
                <asp:Label ID="uxFirstNameDisplayer" runat="server" Text='<%# Bind("FirstName") %>' />
            </ItemTemplate>
            <InsertItemTemplate>
                <asp:TextBox ID="uxFirstNameInput" runat="server" Text='<%# Bind("FirstName") %>' />
                <asp:RequiredFieldValidator ID="uxRequiredFieldValidatorFirstName" runat="server"
                    ControlToValidate="uxFirstNameInput" ErrorMessage="First Name Field is required">*</asp:RequiredFieldValidator>
            </InsertItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField HeaderText="Last Name" SortExpression="LastName">
            <ItemTemplate>
                <asp:Label ID="uxLastNameDisplayer" runat="server" Text='<%# Bind("LastName") %>' />
            </ItemTemplate>
            <InsertItemTemplate>
                <asp:TextBox ID="uxLastNameInput" runat="server" Text='<%# Bind("LastName") %>' />
                <asp:RequiredFieldValidator ID="uxRequiredFieldValidatorLastName" runat="server"
                    ControlToValidate="uxLastNameInput" ErrorMessage="Last Name Field is required">*</asp:RequiredFieldValidator>
            </InsertItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField HeaderText="UserId" SortExpression="UserId">
            <InsertItemTemplate>
                <asp:DropDownList ID="uxUserListSelector" runat="server" />
                <asp:Label ID="uxAllert" runat="server" Text="Label" />
            </InsertItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField HeaderText="Profile" SortExpression="ContentAuthor">
            <ItemTemplate>
                <asp:Label ID="uxContentAuthorDisplayer" runat="server" Text='<%# Bind("ContentAuthor") %>' />
            </ItemTemplate>
            <InsertItemTemplate>
                <asp:TextBox ID="uxContentAuthorInput" runat="server" Text='<%# Bind("ContentAuthor") %>' />
            </InsertItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField HeaderText="NoteInternal" SortExpression="NoteInternal">
            <ItemTemplate>
                <asp:Label ID="uxNoteInternalDisplayer" runat="server" Text='<%# Bind("NoteInternal") %>' />
            </ItemTemplate>
            <InsertItemTemplate>
                <asp:TextBox ID="uxNoteInternalInput" runat="server" Text='<%# Bind("NoteInternal") %>' />
            </InsertItemTemplate>
        </asp:TemplateField>
        <asp:CommandField ShowInsertButton="True" />
    </Fields>
</asp:DetailsView>

代码隐藏：

protected void uxInsertAuthorInput_ItemInserted(object sender, DetailsViewInsertedEventArgs e)
{
    String FirstName = e.Values["FirstName"].ToString();
    String LastName = e.Values["LastName"].ToString();
    uxMessageDisplayer.Text = string.Format("Author: {0} {1} has been added.", FirstName, LastName);

    // problem is here:
    Label myAllert = (Label)uxInsertAuthorInput.FindControl("uxAllert");
    myAllert.Text = "TEST";
}

Answer 1

您需要使用detailsview的ItemUpdated事件而不是ItemInserted事件

ItemUpdated：在单击DetailsView控件中的更新按钮时发生，但在单击之后发生更新操作。来自这里

我相信这会100% 解决问题