C#:控制台程序調用中間庫創建窗體

1、類庫項目引用System.Windows.Forms並添加引用后，才可創建窗體。

2、控制台應用程序調用中間庫（DLL）中的方法創建窗體；中間類庫使用反射下的Assembly加載包含窗體的類庫及創建實例。

注意：1）創建實例時，參數為窗體類的全名（命名空間+類名）。

　　   2）返回值是Object類型，需轉化為Form類型。

         3）exe(控制台程序)、中間類庫（dll）、窗體所在類庫（dll）在同一目錄下。

         4）Load（空間名，窗體類全名），LoadFrom（*.dll,窗體類全名）

 

具體代碼如下：

窗體類庫：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace TestForm
{
    public partial class Test : Form
    {
        public Test()
        {
            InitializeComponent();
        }
    }
}

 

中間類庫：

 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Anxin.Factory
{
    public class FormFactory
    {
        /// <summary>
        /// 創建窗體
        /// </summary>
        /// <param name="val_classFullName"></param>
        /// <returns></returns>
        public static Form CreateForm(string val_classFullName)
        {
            string nameSpace = val_classFullName.Substring(0,val_classFullName.LastIndexOf('.'));
            return (Form)Assembly.Load(nameSpace).CreateInstance(val_classFullName);
        }

        /// <summary>
        /// 創建窗體
        /// </summary>
        /// <param name="val_nameSpace">命名空間</param>
        /// <param name="val_className">窗體類名</param>
        /// <returns></returns>
        public static Form CreateForm(string val_nameSpace, string val_className)
        {
            //string className = val_className;  //僅使用類名創建示例失敗。
            string classFullName = string.Format("{0}.{1}",val_nameSpace,val_className);    
            //MessageBox.Show(Assembly.GetExecutingAssembly().Location);
            return (Form)Assembly.Load(val_nameSpace).CreateInstance(classFullName);
        }

        public static Form CreateForm(string val_formAssemblyFile, string val_formFullName, Object[] val_formArgs)
        {
            return CreateForm(val_formAssemblyFile, val_formFullName, val_formArgs, null);
        }


        public static Form CreateForm(string val_formAssemblyFile,string val_formFullName,Object[] val_formArgs,string val_formText)
        {
            Form form;
            string assemblyPath = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location);
            string assemblyFullName = assemblyPath + val_formAssemblyFile;
            if (!assemblyPath.EndsWith("\\"))
            {
                assemblyFullName = assemblyPath + "\\" + val_formAssemblyFile;
            }
            //MessageBox.Show(assemblyFullName);
            Assembly formAssembly = Assembly.LoadFrom(assemblyFullName);
            form = formAssembly.CreateInstance(val_formFullName) as Form;
            if(null == form)
            {
                string strError = string.Format("創建窗體失敗!\n程序集{0}\n窗體類名稱{1}",
                        val_formAssemblyFile,
                        val_formFullName);
                if (!string.IsNullOrEmpty(val_formText))
                {
                    strError += "窗體標題" + val_formText;
                }
                throw new Exception(strError);
            }

            if (!string.IsNullOrEmpty(val_formText))
            {
                form.Text = val_formText;
            }

            return form;
        }
    }
}

 

控制台程序：

 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Anxin.Factory;
using System.Windows.Forms;

namespace TestFactory
{
    class Program
    {
        static void Main(string[] args)
        {
            string nameSpace = "TestForm";
            string className = "Test";   //窗體類名
            //string className = "Example";  //窗體文件名 （報錯）
            Form testForm = FormFactory.CreateForm(nameSpace,className);

            string classFullName = nameSpace + "." + className;
            testForm = FormFactory.CreateForm(classFullName);

            string dllName = "TestForm.dll";
            //string classFullName = "TestForm.Test";
            testForm = FormFactory.CreateForm(dllName,classFullName,null);

            string formText = "OK 加油！";
            testForm = FormFactory.CreateForm(dllName, classFullName, null,formText);

            if (null != testForm)
            {
                testForm.ShowDialog();
            }
            else
            {
                Console.WriteLine("通過調用Dll,創建窗體失敗！\n");
                //使用窗體文件名創建時失敗！
            }
        }
    }
}