带参数的提取方法（C#、VS 2017）

Question

我在按钮点击中输入了以下代码：

private void Button_Click_1(object sender, RoutedEventArgs e){
 SaveFileDialog saveFileDialog = new SaveFileDialog();
 saveFileDialog.Filter = "CSV File|*.csv";
 saveFileDialog.Title = "Save CSV File";
 saveFileDialog.FileName = newCSVName;
 saveFileDialog.InitialDirectory = System.IO.Path.GetFullPath(System.Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments));
 saveFileDialog.RestoreDirectory = true;

 if (saveFileDialog.ShowDialog().GetValueOrDefault(false)){
    if (saveFileDialog.FileName != ""){
       ParseStream(path, OutputResults.OUTPUT_TYPE_FILE, null, null, saveFileDialog.FileName);
    }}}

我正在尝试将它提取到新方法中，因为在第二个按钮中我已经有了相同的代码，只有一个，下面一行是不同的（具有不同的参数）：

ParseStream(path, OutputResults.OUTPUT_TYPE_SQLINSERT, tableName.Text, null, saveFileDialog.FileName);

提取到我已经做过的新方法后：

private void SaveFileD(string nFilter, string nTitle, string newCSVName){
 SaveFileDialog saveFileDialog = new SaveFileDialog();
 saveFileDialog.Filter = nFilter;
 saveFileDialog.Title = nTitle;
 saveFileDialog.FileName = newCSVName;
 saveFileDialog.InitialDirectory = System.IO.Path.GetFullPath(System.Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments));
 saveFileDialog.RestoreDirectory = true;


 if (saveFileDialog.ShowDialog().GetValueOrDefault(false)){
    if (saveFileDialog.FileName != ""){
       //.....
    }}

以及新按钮点击代码：

private void Button_Click_1(object sender, RoutedEventArgs e){
 string nFilter = "CSV File|*.csv";
 string nTitle = "Save CSV File";
 string newCSVName = newCSVName;

 SaveFileD(nFilter, nTitle, newCSVName);}

但我不知道如何使用 ParseStream 方法，因为我将不同的参数传递给两种情况。

Answer 1

有点不清楚你在问什么，但看起来你想根据 SaveFileD 方法中的当前上下文更改传递给 ParseStream 方法的参数。

Answer 2

  public void MyAwesomeMethodThatDoesStuff(string path, OutputResults outputResults, string someParamater = null)
  {
     SaveFileDialog saveFileDialog = new SaveFileDialog();
     saveFileDialog.Filter = "CSV File|*.csv";
     saveFileDialog.Title = "Save CSV File";
     saveFileDialog.FileName = newCSVName;
     saveFileDialog.InitialDirectory = System.IO.Path.GetFullPath(System.Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments));
 saveFileDialog.RestoreDirectory = true;

     if (saveFileDialog.ShowDialog().GetValueOrDefault(false))
     {
        if (saveFileDialog.FileName != "")
        {
           ParseStream(path, outputResults, someParamater, null, saveFileDialog.FileName);
        }
     }
  }

用法

MyAwesomeMethodThatDoesStuff(@"D:\MyAwesomePath", OutputResults.OUTPUT_TYPE_FILE, tableName.Text)

或者

MyAwesomeMethodThatDoesStuff(@"D:\MyAwesomePath", OutputResults.OUTPUT_TYPE_FILE)

带参数的提取方法（C#、VS 2017）

Extract method with parameters (C#, VS 2017)

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