本文共 2062 字，大约阅读时间需要 6 分钟。

一．访问（清空）页面控件（Ｃ＃）

private void InitPageCtr(Control control )        {
               foreach  (Control ctr in control.Controls )            {
                   //如果是 Pannel , GroupBox，继续再找                if (ctr is System.Windows.Forms.GroupBox || ctr is System.Windows.Forms.Panel)                    InitPageCtr(ctr);                else                {
                       Console.WriteLine($"Name:{ctr.Name.ToUpper()};Type:{ctr.GetType().Name.ToUpper()}");　//控件名及类型                    //switch (ctr.GetType().Name.ToUpper ())                    //{
                       //    case "TEXTBOX":                    //        (ctr as TextBox).Text = "";                    //        break;                    //    case "COMBOBOX":                    //        (ctr as ComboBox).SelectedIndex = 0;                    //        break;                    //    default:                    //        break;                    //}                }            }        }

二．列举文件夹的文件名

private static void GetFileListOfFolder(string folder)

{ DirectoryInfo di = new DirectoryInfo(folder); DirectoryInfo[] arrDi = di.GetDirectories(); Console.WriteLine($"--------------------------Foler:{di.FullName}----------------------"); di.GetFiles().ToList().ForEach(o => { Console.WriteLine(o.FullName); }); arrDi.AsEnumerable().ToList().ForEach(o => { GetFileListOfFolder(o.FullName); }); }

'Get the files in the  folder (Include subfolder)     Public rtnList_FilePathName As New List(Of String())()    Public Function GetFilesInFolder(ByVal path As String) As List(Of String())              Dim fileInfo = New DirectoryInfo(path)        ' For Each file In fileNames        For Each file As FileInfo In fileInfo.GetFiles()            rtnList_FilePathName.Add({file.FullName, If(String.IsNullOrEmpty(file.Extension), file.Name, file.Name.Replace(file.Extension, ""))})        Next        Dim directories = Directory.GetDirectories(path)        For Each dirpath In directories            GetFilesInFolder(dirpath)        Next        Return rtnList_FilePathName    End Function

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