用户控件/自定义控件

未分类

新建用户控件
添加新建项——WEB——WEB窗体用户控件
引用页面：Default.aspx
可托到引用位置

<%@ Register Src="~/News/ctlCotalog.ascx" TagPrefix="uc1" TagName="ctlCotalog" %>
<div>
   <uc1:ctlCotalog runat="server" ID="ctlCotalog" />
</div>

后台代码

private void BindAuth()
{
    CtlDiary.Oid = Request["id"];
    CtlDiary.Plantype = "Diary";
    CtlDiary.Scope = Scope;
    CtlDiary.LoginName = currentUser.LoginName;
}

控件页面：
如果不保存到页面状态；刷新就获取不到了

public string Oid
    {
        set { ViewState["Oid"] = value; }
        get { return ViewState["Oid"]?.ToString(); }
    }
    public string Plantype
    {
        set { ViewState["Plantype"] = value; }
        get { return ViewState["Plantype"]?.ToString(); }
    }
    public string LoginName
    {
        set { ViewState["LoginName"] = value; }
        get { return ViewState["LoginName"]?.ToString(); }
    }
    public bool Scope
    {
        set;get;
    }

自定义控件

//根据e.CallbackData = helper.Msg;提示上传成功还是失败
 <script type="text/javascript">
        function onFileUploadComplete(s, e) {
            if(e.callbackData) {
                alert(e.callbackData);
            }
        }
    </script>

//EditItemTemplate添加自定义控件
<dx:GridViewDataColumn  FieldName="Photo3" Visible="false"  VisibleIndex="20"   Caption="PDF版专利证书扫描件">
    <EditFormSettings Visible="True" />
     <EditItemTemplate>
         <dx:ASPxUploadControl ID="upload1" ClientInstanceName="upload1" runat="server" ShowUploadButton="True" UploadButton-Text="导入"
            UploadMode="Advanced" ShowProgressPanel="True" Width="280px" CssClass="f_l" Theme="Aqua" OnFileUploadComplete="upload1_FileUploadComplete">
            <ValidationSettings  AllowedFileExtensions=".pdf"></ValidationSettings>
            <AdvancedModeSettings EnableFileList="True" EnableMultiSelect="False" EnableDragAndDrop="True" >
            </AdvancedModeSettings>
            <ClientSideEvents  FileUploadComplete="onFileUploadComplete" />
        </dx:ASPxUploadControl>
     </EditItemTemplate>
</dx:GridViewDataColumn>

//导入成功之后自动引用这个函数
protected void upload_FileUploadComplete(object sender, DevExpress.Web.FileUploadCompleteEventArgs e)
{
    if(e.IsValid && !string.IsNullOrEmpty(e.UploadedFile.FileNameInStorage))
    {
        ExcelHelper helper = new ExcelHelper(e.UploadedFile.FileNameInStorage, (Page as IExcelImportPage).XpoType, session, (Page as XpoPage).User, false);
        helper.FromExcel();
        e.CallbackData = helper.Msg;
    }
}