自添加AjaxToolkit后，按钮停止工作：ScriptManager

Question

我最近在我的页面中添加了一个AjaxToolkit：ScriptManager来使用它们提供的CalenderExtender，因为这样做我的按钮都没有在事件服务器端点击。

我在我的方法上添加了一个断点，并且按钮的相应方法没有被点击，我想知道它是否是因为ScriptManager。

我尝试将UseSubmitBehavior="false"添加到按钮中，并且窗台不起作用，并且还将EnablePageMethods="true"添加到ScriptManager。

<ajaxToolkit:ToolkitScriptManager ID="sct1" runat="server" EnablePageMethods="true"></ajaxToolkit:ToolkitScriptManager>

以下是一个示例按钮：

 <asp:UpdatePanel ID="AddDepartments" runat="server" class="AddDepartments">
        <ContentTemplate>
              <asp:Label ID="lbl_adddepartmentadmin" runat="server" Text="Add Department:" CssClass="applicationfont" />
              <input id="txt_adddepartmentadmin" runat="server" type="text" class="smallinputbox" />
              <asp:Button id="btn_adddepartmentadmin" runat="server" CssClass="Button" Text="Add" OnClick="btn_adddepartmentadmin_Click" UseSubmitBehavior="false" />
        </ContentTemplate>
</asp:UpdatePanel>

事件背后的代码：

        protected void btn_adddepartmentadmin_Click(object sender, EventArgs e)
    {
        if (txt_adddepartmentadmin.Value == "" || txt_adddepartmentadmin.Value == null)
        {
            ScriptManager.RegisterStartupScript(this, typeof(string), "Error", "alert('Please enter a valid department name.');", true);
        }
        else
        {
            string returnResult = wsP.AddDepartment(new wsPersonnel.DC_LIST_DEPARTMENTS { DEPARTMENT_NAME = txt_adddepartmentadmin.Value });

            if (returnResult == "Unsuccessful")
            {
                ScriptManager.RegisterStartupScript(this, typeof(string), "Error", "alert('That department already exists, please enter a unique name.');", true);
            }
            else
            {
                ScriptManager.RegisterStartupScript(this, typeof(string), "Error", "alert('Department added.');", true);
                txt_adddepartmentadmin.Value = "";
                departmentamended = true;
                PopulateDepartments();

            }
        }
    }