/// <summary>
/// 在UI上显示数据对象
/// </summary>
private void ShowDataObjectInUI(DetailTextInfo obj)
{
if (obj != null)
{
richTextBox1.Rtf = obj.RTFText;
}
}
public static DetailTextInfo changeToDetailTextInfo(DetailTextDB dbobj)
{
if (dbobj == null)
{
return null;
}
DetailTextInfo obj = new DetailTextInfo()
{
Text = String.IsNullOrEmpty(dbobj.Text)?"":dbobj.Text,
RTFText = dbobj.RTFText==null?"":Encoding.UTF8.GetString(dbobj.RTFText),
Path = dbobj.Path,
ModifyTime = dbobj.ModifyTime,
ID = dbobj.ID
};
return obj;
}
public static DetailTextInfo changeToDetailTextInfo(DetailTextDB dbobj)
{
if (dbobj == null)
{
return(null);
}
DetailTextInfo obj = new DetailTextInfo()
{
Text = String.IsNullOrEmpty(dbobj.Text)?"":dbobj.Text,
RTFText = dbobj.RTFText == null?"":Encoding.UTF8.GetString(dbobj.RTFText),
Path = dbobj.Path,
ModifyTime = dbobj.ModifyTime,
ID = dbobj.ID
};
return(obj);
}
/// <summary>
/// 根据节点路径提取节点数据，如果未找到，返回null
/// </summary>
/// <param name="nodePath"></param>
/// <returns></returns>
public IDataInfo GetDataInfoObjectByPath(string nodePath)
{
if (String.IsNullOrEmpty(nodePath))
{
return(null);
}
DetailTextDB dbobj = repository.GetDataInfoObjectByPath(nodePath);
if (dbobj == null)
{
return(null);
}
DetailTextInfo infoObj = DetailTextHelper.changeToDetailTextInfo(dbobj);
//设置数据己装入标记
infoObj.HasBeenLoadFromStorage = true;
return(infoObj);
}
public static DetailTextDB changeToDetailTextDB(DetailTextInfo obj)
{
if (obj == null)
{
return null;
}
//注意数据库中nvarchar最大允许4000个字符
if (obj.Text != null && obj.Text.Length > DALConfig.MaxTextFieldSize)
{
obj.Text = obj.Text.Substring(0, DALConfig.MaxTextFieldSize);
}
DetailTextDB dbObj = new DetailTextDB()
{
ModifyTime = obj.ModifyTime,
Path = obj.Path,
RTFText = String.IsNullOrEmpty(obj.RTFText) ? null : Encoding.UTF8.GetBytes(obj.RTFText),
Text = String.IsNullOrEmpty(obj.Text)?"":obj.Text,
ID = obj.ID
};
return dbObj;
}
public static DetailTextDB changeToDetailTextDB(DetailTextInfo obj)
{
if (obj == null)
{
return(null);
}
//注意数据库中nvarchar最大允许4000个字符
if (obj.Text != null && obj.Text.Length > DALConfig.MaxTextFieldSize)
{
obj.Text = obj.Text.Substring(0, DALConfig.MaxTextFieldSize);
}
DetailTextDB dbObj = new DetailTextDB()
{
ModifyTime = obj.ModifyTime,
Path = obj.Path,
RTFText = String.IsNullOrEmpty(obj.RTFText) ? null : Encoding.UTF8.GetBytes(obj.RTFText),
Text = String.IsNullOrEmpty(obj.Text)?"":obj.Text,
ID = obj.ID
};
return(dbObj);
}
/// <summary>
/// 将对象的当前值写入数据库
/// </summary>
/// <param name="dataInfoObject"></param>
/// <returns></returns>
public int UpdateDataInfoObject(IDataInfo dataInfoObject)
{
DetailTextInfo obj = dataInfoObject as DetailTextInfo;
if (obj.Text.Length > DALConfig.MaxTextFieldSize)
{
obj.Text = obj.Text.Substring(0, DALConfig.MaxTextFieldSize);
}
if (dataInfoObject == null || obj == null)
{
return(0);
}
bool isNew = false;
DetailTextDB dbobj = repository.GetDataInfoObjectByPath(obj.Path);
if (dbobj == null)
{
dbobj = new DetailTextDB();
isNew = true;
}
if (String.IsNullOrEmpty(dbobj.Text) == false && String.IsNullOrEmpty(obj.Text))
{
ShowWarningInfo(String.Format("更新节点{0}时，发现数据库记录中的Text字段不为空，但尝试写入一个空的字串，这有可能是个错误，特此提示。", obj.Path));
}
dbobj.ModifyTime = obj.ModifyTime;
dbobj.Text = obj.Text;
dbobj.Path = obj.Path;
dbobj.RTFText = (String.IsNullOrEmpty(obj.RTFText))?null:Encoding.UTF8.GetBytes(obj.RTFText);
if (isNew)
{
return(repository.Create(dbobj));
}
else
{
return(repository.Update(dbobj));
}
}
/// <summary>
/// 依据节点类型创建"空白"的数据信息对象，其HasBeenLoadFromStorage属性为false
/// （无需数据存储的节点，如OnlyText例此，其HasBeenLoadFromStorage始终为true）
/// </summary>
/// <param name="NodeType"></param>
/// <returns></returns>
public static NodeDataObject CreateDataInfoNode(String NodeType,String EFConnectionString)
{
NodeDataObject nodeDataObject = new NodeDataObject();
if (NodeType == "OnlyText")
{
nodeDataObject.DataItem = new OnlyTextInfo() { MainWindow=_mainWindow };
nodeDataObject.AccessObject = null;
}
if (NodeType == "Folder")
{
FolderInfo info = new FolderInfo() { MainWindow = _mainWindow };
FolderAccess access = new FolderAccess(EFConnectionString) ;
info.SetRootControlDataAccessObj(access);
nodeDataObject.DataItem =info ;
//设置数据未装入标记
nodeDataObject.DataItem.HasBeenLoadFromStorage = false;
nodeDataObject.AccessObject =access ;
}
if (NodeType == "DetailText")
{
DetailTextInfo info = new DetailTextInfo() { MainWindow = _mainWindow };
DetailTextAccess accessObj= new DetailTextAccess(EFConnectionString);
info.SetRootControlDataAccessObj(accessObj);
nodeDataObject.DataItem=info;
//设置数据未装入标记
nodeDataObject.DataItem.HasBeenLoadFromStorage = false;
nodeDataObject.AccessObject = accessObj;
}
return nodeDataObject;
}
/// <summary>
/// 在UI上显示数据对象
/// </summary>
private void ShowDataObjectInUI(DetailTextInfo obj)
{
if (obj != null)
{
richTextBox1.Rtf = obj.RTFText;
}
}