asp.net 4.5 TextBox HTML编码

Question

I have an aspx that cotains this code:

<asp:FormView runat="server"
                  ID="VeranstaltungDetailForm"
                  ItemType="Budgetverwaltung.Models.Veranstaltung"
                  DataKeyNames="VeranstaltungsId"
                  SelectMethod="GetItem"
                  InsertMethod="InsertItem"
                  UpdateMethod="UpdateItem"
                  OnDataBinding="VeranstaltungDetailForm_DataBinding"
                  OnDataBound="VeranstaltungDetailForm_DataBound"
                  OnItemCommand="VeranstaltungDetailForm_ItemCommand">

        <ItemTemplate>
            <fieldset>
                <legend><%#: Item.Bezeichnung %> (<%#: Item.Veranstaltungsnummer %>)</legend>
                <table class="content-table">
                    <tr>
                        <td class="dark-table"><span style="font-weight:bold;">Beschreibung:</span></td>
                        <td class="light-table"><%#: Item.Beschreibung %></td>
                        <td class="dark-table"><span style="font-weight:bold;">Ort:</span></td>
                        <td class="light-table"><%# Item.Ort %></td>
                    </tr>
                </table>
            </fieldset>
        </ItemTemplate>

        <InsertItemTemplate>
            <fieldset>
                <legend>Neue Veranstaltung anlegen</legend>
                  <table class="content-table">
                    <tr>
                        <td class="dark-table"><span style="font-weight:bold;">Beschreibung:</span></td>
                        <td class="light-table"><asp:TextBox runat="server" ID="insert_beschreibung" Text="<%#: BindItem.Beschreibung %>"></asp:TextBox></td>
                        <td class="dark-table"><span style="font-weight:bold;">Ort:</span></td>
                        <td class="light-table"><asp:TextBox runat="server" ID="insert_ort" Text="<%#: BindItem.Ort %>"></asp:TextBox></td>
                    </tr>
                </table>
            </fieldset>
        </InsertItemTemplate>

        <EditItemTemplate>
            <fieldset>
                <legend>Veranstaltung bearbeiten "<%#: Item.Bezeichnung %>"</legend>
                <dl>
                  <table class="content-table">
                    <tr>
                        <td class="dark-table"><span style="font-weight:bold;">Beschreibung:</span></td>
                        <td class="light-table"><asp:TextBox runat="server" ID="edit_beschreibung"  Text="<%# BindItem.Beschreibung %>"></asp:TextBox></td>
                        <td class="dark-table"><span style="font-weight:bold;">Ort:</span></td>
                        <td class="light-table"><asp:TextBox runat="server" ID="edit_ort" Text="<%#: BindItem.Ort %>"></asp:TextBox></td>
                    </tr>
                </table>
                </dl>
            </fieldset>
        </EditItemTemplate>
    </asp:FormView>

The data is managed by Entity Framework. In most cases, everything is working fine. But if I enter Umlaute (ÄÖÜ äöü) I run into problems. When I enter them and save, everything is fine. The Data appears correctly in the database. When I view the data, eg , everything is fine. But when I try to edit the data in the data gets html-encoded as ÄÖÜ and I can't save it again. I'm no expert at asp.net so I'm at a loss right now. Where is my mistake? Thanks for your help.

Answer 1

尝试看一下： 字符串编码-德语变音符号

Answer 2

Without knowing your configuration I would assume that your content, when loaded from the server, is probably character set UTF-8 , which causes non-UTF-8 characters like 'Ü' to be HTML-encoded. Thus your textbox is displaying the HTML-encoded characters instead of the original UTF-16 characters - but when rendered in your normal ItemTemplate the browser respects the encoding and this appears perfectly fine.

You could try to force UTF-16 encoding on all responses using this approach in your web.config which should ensure that your umlaut characters never get encoded in a response:

<configuration>
  <system.web>
    <globalization requestEncoding="utf-16" responseEncoding="utf-16" />
  </system.web>
</configuration>

YMMV.