【NET】Winform用户控件的初步封装之编辑控件

编辑控件

public abstract partial class TEditorBase <TEntity, TRepository, TSqlStrConstruct> : UserControl
        where TEntity:Yom.Extend.Entity.EntityBase
        where TRepository : Yom.Extend.Repository.RepositoryBaseRepository<TEntity, TSqlStrConstruct>
        where TSqlStrConstruct : Huawei.Data.SqlStrConstruct
    {
        protected TRepository repository = System.Activator.CreateInstance<TRepository>();
        public TEditorBase()
        {
            InitializeComponent();
            
            this.gpxTitle.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
                        | System.Windows.Forms.AnchorStyles.Left)
                        | System.Windows.Forms.AnchorStyles.Right)));
        }
        string key;
        public string Key
        {
            get {
                return key;
            }
            set {
                if (string.IsNullOrEmpty(value)) {
                    return;
                }
                key = value;
                Entity = this.repository.FindBy(value) as Yom.Extend.Entity.EntityBase;
            }
        }
        protected abstract Action<EntityDataBindEventArgs> AfterMapDataToEntityAction
        {
            get;
        }
        protected abstract Action<EntityDataBindEventArgs> AfterMapDataToControlAction
        {
            get;
        }
        protected virtual Yom.Extend.Entity.EntityBase Entity
        {
            get {
                TEntity entity = System.Activator.CreateInstance<TEntity>();
                entity.PropertyValueSet(this.repository.GetEntityKeyName(), this.Key);
                DataDetailGetFromControlChildren.MapDataToEntity(entity, this, AfterMapDataToEntityAction);
                return entity;
            }
            set {
                if (value == null)
                {
                    return;
                }
                
                DataDetailGetFromControlChildren.MapDataToControl(value, this, this.AfterMapDataToControlAction);
            }
        }

        protected virtual string Title
        {
            get {
                return string.Empty;
            }
        }
        protected virtual bool IsValid(out string msg)
        {
            msg = string.Empty;
            return true;
        }
        protected virtual void SaveCallBack()
        {
            string msg = string.Empty;
            if (!IsValid(out msg))
            {
                MessageBox.Show(msg);
                return;
            }
            try
            {
                if (string.IsNullOrEmpty(this.Key))
                {
                    do
                    {
                        this.key = Guid.NewGuid().ToString();
                    } while (this.repository.Exists(this.key));
                    this.repository.Add(this.Entity);
                }
                else
                {
                    this.repository.Update(this.Entity);
                }
                MessageBox.Show("保存成功!");
                this.Hide();
                this.Parent.Controls.Add(Lister);
                this.Parent.Controls.Remove(this);
                this.Dispose();
            }
            catch (Exception ex)
            {
                MessageBox.Show(string.Format("保存失败：
{0}", ex.Message));
            }
        }

        protected virtual void CancelCallBack()
        {
            //this.Hide();
            //this.Parent.Controls.Add(GetListControl());
            //this.Parent.Controls.Remove(this);
            //this.Dispose();
            //this = null;
            if (this.Parent.Controls.Count <= 1)
            {
                this.Parent.Controls.Add(this.Lister);
                this.Parent.Controls.RemoveAt(0);
            }
            else
            {
                this.Parent.Controls[0].Show();
                this.Parent.Controls.RemoveAt(1);
            }
        }

        private void bSave_Click(object sender, EventArgs e)
        {
            SaveCallBack();
        }

        private void TEditorBase_Load(object sender, EventArgs e)
        {
            this.gpxTitle.Text = this.Title;
        }
        public abstract TListPager<TEntity, TRepository, TSqlStrConstruct> Lister
        {
            get;
        }

        private void bCancel_Click(object sender, EventArgs e)
        {
            CancelCallBack();
        }
    }

属性赋值:

public class EntityDataBindEventArgs : EventArgs
    {

        public Yom.Extend.Entity.EntityBase CurrentEntity
        {
            get;
            set;
        }
        public System.Reflection.PropertyInfo PropertyInfo
        {
            get;
            set;
        }
        public System.Windows.Forms.Control BindControl
        {
            get;
            set;
        }
    }
    public class DataDetailGetFromControlChildren
    {
        public static void MapDataToEntity(Yom.Extend.Entity.EntityBase entity, System.Windows.Forms.Control parent, Action<EntityDataBindEventArgs> afterDataGet)
        {

            System.Reflection.PropertyInfo[] pis = entity.GetType().GetProperties();
            if (pis != null && pis.Length > 0) {
                System.Windows.Forms.Control c;
                foreach (System.Reflection.PropertyInfo pi in pis)
                {
                    c = null;
                    try
                    {
                        c = parent.Controls.Find(pi.Name, true)[0];
                    }
                    catch {
                        continue;
                    }
                    if (c != null)
                    {
                        entity.PropertyValueSet(pi.Name, c.Text);
                        if (afterDataGet != null)
                        {
                            afterDataGet(new EntityDataBindEventArgs() { CurrentEntity = entity, PropertyInfo = pi, BindControl = c });
                        }
                    }
                }
            }
        }
        public static void MapDataToControl(Yom.Extend.Entity.EntityBase entity, System.Windows.Forms.Control parent, Action<EntityDataBindEventArgs> afterDataSet)
        {
            System.Reflection.PropertyInfo[] pis = entity.GetType().GetProperties();
            if (pis != null && pis.Length > 0)
            {
                System.Windows.Forms.Control c;
                foreach (System.Reflection.PropertyInfo pi in pis)
                {
                    c = null;
                    try
                    {
                        c = parent.Controls.Find(pi.Name, true)[0];
                    }
                    catch
                    {
                        continue;
                    }
                    if (c != null)
                    {
                        if ((c is System.Windows.Forms.ComboBox) && !(c as System.Windows.Forms.ComboBox).Items.Contains(pi.GetValue(entity, null))) {
                            continue;
                        }
                        c.Text = pi.GetValue(entity, null).ToString();
                        if (afterDataSet != null)
                        {
                            afterDataSet(new EntityDataBindEventArgs() { CurrentEntity = entity, PropertyInfo = pi,BindControl=c });
                        }
                    }
                }
            }
        }
    }

此封装要结合之前发的那篇分页控件的文章

逻辑处理不是最终形态 仅仅是临时解决方案