在C ++的Windows窗体上从ComboBox读取值 [英] Reading Value from ComboBox on Windows Form in C++

问题描述

大家好，


我正在尝试实现一些使用包含下拉组合框的Windows窗体的代码充满价值。这些值描述了我希望将东西打印到日志的详细程度（即关键消息，错误消息，调试消息ec）



我想知道是否有一种让我的C ++类文件在Windows窗体上读取COMBOBOX值的方法？



即comboBox1 = dlCritical。



在日志文件类中：

iDebugLevels = comboBox1.value（）？ //我知道这实际上并没有用，但只是为了解释我在寻找什么。



文件系统的结构如下：

Hi Guys,

I''m trying to implement some code that uses a Windows Forms that contains a dropdown combobox that is filled with values. These values depict that level of detail i want stuff to be printed to a log (i.e. Critical messages, Error Messages, Debug Messages ec)

I am wondering if there is a way in which to get my C++ class file to READ the value of the COMBOBOX on the windows form?

i.e. comboBox1 = dlCritical.

In the logfile Class:
iDebugLevels = comboBox1.value()? // I know this doesn''t actually work but it''s just to explain what i''m looking for.

The structure of the file system is as follows:

<pre lang="c++">
main()
{
   Applicatoin::Run(gcnew Form1());
}

public ref class Form1 : public System::Windows::Forms::Form
{
   private: WinIO mWinIO;
   public:
     Form1(void)
     {
         InitializeComponent();
         mWinIO = gcnew WinIO();
      }
      .....
}

WINIO CLASS:
WinIO::WinIO(void)
{
  mLogFile = new LogFile();
}

LOGFILE CLASS:
LogFile::LogFile(void)
{
     OpenLogFile("WINIO_LOGFILE.txt");
     mDebugLevels = comboBox.Value();  //This is where i would like to read in the value of the combo box value from the form.
}

推荐答案

你应该使用属性 System.Windows.Forms.ComboBox.Text ，这是当前在编辑区域中显示的值：

http://msdn.microsoft.com/en-us/library/system.windows.forms.combobox.aspx [ ^ ]，

http://msdn.microsoft.com/en-us/library/system.windows。 forms.combobox.text.aspx [ ^ ]。

-SA

You should use the property System.Windows.Forms.ComboBox.Text, which is the value currently presented in the edit area:
http://msdn.microsoft.com/en-us/library/system.windows.forms.combobox.aspx[^],
http://msdn.microsoft.com/en-us/library/system.windows.forms.combobox.text.aspx[^].

—SA

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