Winforms 通用表格开启器

Winforms 通用表格开启器,winforms,generics,user-controls,Winforms,Generics,User Controls,我正在尝试创建一个新的用户控件作为通用的查找表单开启器 lkpControl.FormToOpen="FrmProductList"; lkpControl.ReturnValueVariableName="ProductCode"; lkpControl.ShowThatForm(); if dialog result is OK: lkpControl.txtValue=lkpControl.GetSelectedValue(); 此控件将从其名称打开预配置(或在设计时指定)表单,并将打开

我正在尝试创建一个新的用户控件作为通用的查找表单开启器

lkpControl.FormToOpen="FrmProductList";
lkpControl.ReturnValueVariableName="ProductCode";
lkpControl.ShowThatForm();
if dialog result is OK:
lkpControl.txtValue=lkpControl.GetSelectedValue();
此控件将从其名称打开预配置(或在设计时指定)表单,并将打开表单中的选定项返回其文本框。就像从文件夹浏览器对话框中获取路径一样

只是打开表单中选定项的通用表单开启器和值获取器

如果您能告诉我任何解决方案或路径,我将不胜感激

提前谢谢

更新: 我已经解决了这个问题:

public partial class LookupButton : UserControl
{
    [Description("Type of the Form To Open: typeof(LookupButtonTest.Form2)")]
    [Category("Custom")]
    public Type FormToOpen { get; set; }
    [Description("Name Of the public property to get return value from opened form.")]
    [Category("Custom")]
    public string PropertyToGet { get; set; }
    public LookupButton()
    {
        InitializeComponent();
    }

    private void btnOpenForm_Click(object sender, EventArgs e)
    {
        if (FormToOpen == null)
        {
            throw new ArgumentNullException("FormToOpen");
        }

        if (PropertyToGet.Length <= 0)
        {
            throw new ArgumentNullException("PropertyToGet");
        }

        Form objForm = (Form)Activator.CreateInstance(FormToOpen);

        if (objForm.ShowDialog() == DialogResult.OK)
        {
            bool propertyFound = false;
            PropertyInfo[] props = objForm.GetType().GetProperties(BindingFlags.Instance | BindingFlags.Public);
            foreach (PropertyInfo p in props)
            {
                if (p.Name == PropertyToGet)
                {
                    txtReturnVal.Text = p.GetValue(objForm, null).ToString();
                    propertyFound = true;
                }
            }
            if (!propertyFound)
            {
                throw new ArgumentNullException("PropertyToGet");
            }
        }   
    }
}
public分部类LookupButton:UserControl
{
[说明(“要打开的表单类型:typeof(LookupButtonTest.Form2)”)]
[类别(“海关”)]
公共类型FormToOpen{get;set;}
[说明(“从打开的表单中获取返回值的公共属性的名称”。)]
[类别(“海关”)]
公共字符串PropertyToGet{get;set;}
公共查找按钮()
{
初始化组件();
}
私有void btnOpenForm_单击(对象发送方,事件参数e)
{
如果(FormToOpen==null)
{
抛出新ArgumentNullException(“FormToOpen”);
}
如果(PropertyToGet.Length类似于以下内容:

public static class ShowFormAs
   {
       public static T1 ShowForm<T1>(string fullTypeName, string propertyName)
           where T1: class
       {
           return string.IsNullOrEmpty(fullTypeName) 
               ? default(T1) : 
               ShowForm<T1>(System.Reflection.Assembly.GetExecutingAssembly().CreateInstance(fullTypeName) as Form, propertyName);
       }

       public static T1 ShowForm<T, T1>(string propertyName)
           where T: Form, new ()
           where T1: class 
       {
           return ShowForm<T1>(new T(), propertyName);
       }

       private static T1 ShowForm<T1>(Form form, string propertyName)
           where T1: class 
       {
           if (form == null)
           {
               return default(T1);
           }

           if (form.ShowDialog() == DialogResult.OK)
           {
               var property = form.GetType().GetProperties().FirstOrDefault(o => string.CompareOrdinal(o.Name, propertyName) == 0);

               if (property == null)
               {
                   return default(T1);
               }

               return property.GetValue(form, null) as T1;
           }

           return default(T1);
       }
   }
结果是:

var x = ShowFormAs.ShowForm<Form2, string>("TTT");
var z = ShowFormAs.ShowForm<string>("StackOverflow.Form2", "TTT");
 namespace StackOverflow
    {
        public partial class Form2 : Form
        {
            public Form2()
            {
                InitializeComponent();
            }

            public string TTT { get { return "Ololo"; } }
        }
    }