Obout Combobox selected Index changed 事件不起作用

Question

我的问题是 Obout Combobox 的选定索引更改事件根本没有触发。

请参阅下面的代码：

      <obout:ComboBox ID="ddPractice" runat="server" Width="350" MenuWidth="650" Height="180"
                    DataTextField="LocationText" DataValueField="LocationID" EmptyText="Search By Practice Name/Code/PostCode"
                    EnableLoadOnDemand="true" EnableVirtualScrolling="true" AutoValidate="true"  AutoPostBack="true" AllowCustomText="false" 
                    TabIndex="11">

                    <HeaderTemplate>
                        <div class="header" style="width: 290px;">
                            Practice
                        </div>
                        <div class="header" style="margin-left: 0px; width: 90px;">
                            PostCode
                        </div>
                        <div class="header" style="margin-left: 0px; width: 90px;">
                            Practice Code
                        </div>
                        <div class="header" style="margin-left: 0px; width: 100px;">
                            PCT
                        </div>
                    </HeaderTemplate>
                    <ItemTemplate>
                        <div class="item" style="width: 290px;">
                            <%# Eval("LocationName")%>
                        </div>
                        <div class="item" style="margin-left: 0px; width: 90px;">
                            <%# Eval("PostCode")%>
                        </div>
                        <div class="item" style="margin-left: 0px; width: 90px;">
                            <%# Eval("PracticeCode")%>
                        </div>
                        <div class="item" style="margin-left: 0px; width: 100px;">
                            <%# Eval("PCTName")%>
                        </div>
                    </ItemTemplate>
                </obout:ComboBox>

                          <asp:TextBox ID="txtPractice"  runat="server" Width="250px" Height="21" Visible="false" />

隐藏代码

 Private Sub ddPractice_SelectedIndexChanged(sender As Object, e As Obout.ComboBox.ComboBoxItemEventArgs) Handles ddPractice.SelectedIndexChanged
   If ddPractice.SelectedValue = "685" Then
       txtPractice.Visible = True
   End If
End Sub

我还有一个将项目加载到组合框的功能

  Private Sub Practice_LoadingItems(sender As Object, e As     Obout.ComboBox.ComboBoxLoadingItemsEventArgs) Handles ddPractice.LoadingItems

    Dim data As DataTable = GetPractices(e.Text, e.ItemsOffset, 10)

    Dim combobox As Obout.ComboBox.ComboBox = CType(sender, Obout.ComboBox.ComboBox)
    combobox.DataSource = data
    combobox.Items.Clear()
    combobox.DataBind()

    e.ItemsLoadedCount = e.ItemsOffset + data.Rows.Count

    e.ItemsCount = GetPracticesCount(e.Text)
       End Sub

我在堆栈溢出中看到了类似的问题，但它没有任何 answers.Also 因为我没有足够的声誉我无法评论它。

请帮忙。

Answer 1

您好，我已经成功地使 Selected Index changed 事件生效。

我唯一做的就是在 aspx 页面中添加了 AllowCustomText="true" 而不是 false。

 <obout:ComboBox ID="ddPractice" runat="server" Width="350" MenuWidth="650" Height="180"
                    DataTextField="LocationText" DataValueField="LocationID" EmptyText="Search By Practice Name/Code/PostCode" AutoPostBack="true"
                    EnableLoadOnDemand="true" EnableVirtualScrolling="true" AutoValidate="true"  AllowCustomText="true" 
                    TabIndex="11" style="top: 0px; left: 0px">

解决了我的问题！

请注意：如果此值设置为 false 则不会给您选择 value.It 将始终为空。所以在保存之前将AllowCustomText ppty设置为False然后保存！.

很奇怪为什么这会导致问题但它起作用了！

感谢您的帮助！

Obout Combobox selected Index changed 事件不起作用

Obout Combobox selected Index changed event not working

asp.net

vb.net

selectedindexchanged

obout