如何在类文件中获取字符串值 [英] how to get the string value in class file

问题描述

如何在类文件中获取字符串值

how to get the string value in class file

string str=comboBox.SelectedItem.ToString();

这是我的课程文件

this is my class file

class FTClientCode
        {
            public static string curMsg = "Idle";
            public static void SendFile(string fileName)
            {
                try
                {
                   
                    IPAddress[] ipAddress = Dns.GetHostAddresses(str);
                    IPEndPoint ipEnd = new IPEndPoint(ipAddress[0], 5656);
                    Socket clientSock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);


                    string filePath = "";

                    fileName = fileName.Replace("\\", "/");
                    while (fileName.IndexOf("/") > -1)
                    {
                        filePath += fileName.Substring(0, fileName.IndexOf("/") + 1);
                        fileName = fileName.Substring(fileName.IndexOf("/") + 1);
                    }


                    byte[] fileNameByte = Encoding.ASCII.GetBytes(fileName);
                    if (fileNameByte.Length > 850 * 1024)
                    {
                        curMsg = "File size is more than 850kb, please try with small file.";
                        return;
                    }

                    curMsg = "Buffering ...";
                    byte[] fileData = File.ReadAllBytes(filePath + fileName);
                    byte[] clientData = new byte[4 + fileNameByte.Length + fileData.Length];
                    byte[] fileNameLen = BitConverter.GetBytes(fileNameByte.Length);

                    fileNameLen.CopyTo(clientData, 0);
                    fileNameByte.CopyTo(clientData, 4);
                    fileData.CopyTo(clientData, 4 + fileNameByte.Length);

                    curMsg = "Connection to server ...";
                    clientSock.Connect(ipEnd);

                    curMsg = "File sending...";
                    clientSock.Send(clientData);

                    curMsg = "Disconnecting...";
                    clientSock.Close();
                    curMsg = "File transferred.";

                }
                catch (Exception ex)
                {
                    if (ex.Message == "No connection could be made because the target machine actively refused it")
                        curMsg = "File Sending fail. Because server not running.";
                    else
                        curMsg = "File Sending fail." + ex.Message;
                }

            }
        }

推荐答案

在您的课程中添加属性

In your class add a property

public static string HostAddressString {get;set;}

为组合上的IndexChanged事件编写一个事件处理程序-并在该处理程序中

Write an event handler for the IndexChanged event on the combo - and in that handler

FTClientCode.HostAddressString = combobox.SelectedItem.ToString();

因此，在该类中，您可以访问HostAddressString

so, in the class you can access HostAddressString

IPAddress[] ipAddress = Dns.GetHostAddresses(HostAddressString);

看一下CodeProject中的此链接...

使用C#的INI文件处理类 [ ^ ]

这可能会给您一个想法

Have a look at this link... from CodeProject

An INI file handling class using C#[^]

This may give you an idea

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