BaseEditForm 提供數據添加與修改的窗體
屬性
Info:修改時，從BaseListForm傳來的信息對象
TypeID:類別Id
ParentID:信息的父對象
保護的方法
ShowErrorMessage:顯示信息提示
重載方法
CreateListInstance:創建IList對象
AddInfo:數據添加時處理
ModifyInfo:數據修改時處理
ValidateData:驗證數據
FillForm:將數據填充到窗體控件上
ClearForm:清理窗體控件的值
RegisterActiveControl:注冊要激活的控件,Control數組是TabControl每一個TabPage中默認獲得焦點的控件
以下給出一個示例代碼:
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
try
{
ATProductType da = (ATProductType)DAFactory.CreateDA(typeof(ATProductType));
//填充分類列表
tcbType.TableName = TProductType._TableName;
tcbType.TextField = TProductType._Name;
tcbType.IdField = TProductType._Id;
tcbType.ParentIdField = TProductType._ParentId;
tcbType.ChildCountField = TProductType._ChildCount;
tcbType.FillTypes(da.DataHelper, null);
tcbType.Value = TypeID;
//單位
ATUnit uda = (ATUnit)DAFactory.CreateDA(typeof(ATUnit));
TUnits units = uda.Select(TUnit._CompanyId + " = " + ContextArgs.Instance.CompanyId);
units.Insert(0, new TUnit());
cboUnit.DisplayMember = "Name";
cboUnit.DataSource = units;
cboUnit.Text = UnitName;
da.Dispose();
}
catch (System.Exception e1)
{
Utility.ShowErrorMessage(e1.Message);
}
}
/// <summary>
/// 創建一個實體集合
/// </summary>
/// <param name="type"></param>
protected override void CreateListInstance(Type type)
{
base.CreateListInstance(typeof(TProducts));
}
/// <summary>
/// 將實體信息填充到窗體控件
/// </summary>
/// <param name="source"></param>
protected override void FillForm(BaseModel source)
{
TProduct info = source as TProduct;
txtCode.Text = info.Code;
txtName.Text = info.Name;
ctbPrice.Decimal = info.Price;
txtSpec.Text = info.Spec;
UnitName = info.Unit;
TypeID = info.ProductTypeId;
}
/// <summary>
/// 清理窗體控件的值
/// </summary>
protected override void ClearForm()
{
txtCode.Text = "";
txtName.Text = "";
txtSpec.Text = "";
cboUnit.Text = "";
txtCode.Focus();
}
/// <summary>
/// 添加新的實體信息
/// </summary>
/// <returns></returns>
protected override BaseModel AddInfo()
{
try
{
ATProduct da = (ATProduct)DAFactory.CreateDA(typeof(ATProduct));
#region 檢查以前刪除的
QueryBuilder qb = new QueryBuilder();
qb.Append(QueryRelation.And, QueryCompare.Equal, TProduct._IsDelete, true);
qb.Append(QueryRelation.And, QueryCompare.Equal, TProduct._CompanyId, ContextArgs.Instance.CompanyId);
qb.Append(QueryRelation.And, QueryCompare.Equal, TProduct._Code, txtCode.Text);
TProduct oldInfo = da.Get(qb, null);
if (oldInfo != null)
{
DialogResult dresult = Utility.ShowQuestionMessageEx("歷史記錄中存在相同編碼的產品\"" + oldInfo.Name + "\",\n點擊\"是\"恢復原來的資料,點擊\"否\"刪除原來的資料並創建新的。");
if (dresult == DialogResult.Yes)
{
//恢復
oldInfo.IsDelete = false;
da.DataHelper.ExecuteNonQuery("UPDATE TProduct SET IsDelete = 0 WHERE " + qb.ToString());
return oldInfo;
}
else if (dresult == DialogResult.No)
{
//刪除
da.DataHelper.ExecuteNonQuery("DELETE FROM TProduct WHERE " + qb.ToString());
}
else
{
return null;
}
}
#endregion
TProduct info = da.NewEntity;
SetInfo(info);
if (da.Create(info))
{
CreateUnit();
return info;
}
}
catch (System.Exception e)
{
Utility.ShowErrorMessage(e.Message);
}
return null;
}
/// <summary>
/// 修改實體信息
/// </summary>
/// <param name="source"></param>
/// <returns></returns>
protected override bool ModifyInfo(BaseModel source)
{
try
{
TProduct info = source as TProduct;
SetInfo(info);
ATProduct da = (ATProduct)DAFactory.CreateDA(typeof(ATProduct));
if (da.Update(info))
{
CreateUnit();
return true;
}
}
catch (System.Exception e)
{
Utility.ShowErrorMessage(e.Message);
}
return false;
}
/// <summary>
/// 驗證數據
/// </summary>
/// <returns></returns>
protected override bool ValidateData()
{
bool ret = true;
if (txtCode.Text.Length == 0)
{
ShowErrorMessage(txtCode, "請輸入編碼");
ret = false;
}
if (txtName.Text.Length == 0)
{
ShowErrorMessage(txtName, "請輸入名稱");
ret = false;
}
if (tcbType.Value == null)
{
ShowErrorMessage(tcbType, "請選擇類別");
ret = false;
}
try
{
//檢查編碼
ATProduct da = (ATProduct)DAFactory.CreateDA(typeof(ATProduct));
TProduct refer = Info == null ? null : (TProduct)Info;
if (da.IsExist(refer, TProduct._Code, txtCode.Text,
TProduct._CompanyId + " = " + ContextArgs.Instance.CompanyId + " AND " +
TProduct._IsDelete + " = 0"))
{
ShowErrorMessage(txtCode, "編碼重復");
ret = false;
}
}
catch (System.Exception e)
{
Utility.ShowErrorMessage(e.Message);
}
return ret;
}
/// <summary>
/// 將窗體控件的值賦給實體
/// </summary>
/// <param name="info"></param>
private void SetInfo(TProduct info)
{
info.Code = txtCode.Text;
info.Name = txtName.Text;
info.Price = ctbPrice.Decimal;
info.ProductTypeId = int.Parse(tcbType.Value.ToString());
info.Unit = cboUnit.Text;
info.Spec = txtSpec.Text;
info.CompanyId = ContextArgs.Instance.CompanyId;
}
//添加單位
private void CreateUnit()
{
string name = cboUnit.Text;
ATUnit uda = (ATUnit)DAFactory.CreateDA(typeof(ATUnit));
if (!uda.IsExist(TUnit._Name, name, TUnit._CompanyId + " = " + ContextArgs.Instance.CompanyId))
{
TUnit unit = new TUnit();
unit.CompanyId = ContextArgs.Instance.CompanyId;
unit.Name = name;
uda.Create(unit);
}
}
下一節介紹 BaseQueryForm 及相關的一些配置
