/// <summary>
/// 把一个业务逻辑键设置到 DataSet 里
/// </summary>
/// <param name="dataSet"></param>
/// <param name="businessKey"></param>
/// <returns></returns>
public static DataSet SetKey(ref DataSet dataSet, BusinessKey businessKey)
{
Type type = businessKey.GetType();
string tableName = type.Name;
DataTable table;
if (dataSet.Tables.Contains("BusinessKey"))
{
table = dataSet.Tables["BusinessKey"];
table.Clear();
}
else
{
table = dataSet.Tables[type.Name];
if (table == null)
{
table = new DataTable(tableName);
dataSet.Tables.Add(table);
foreach (PropertyInfo pInfo in type.GetProperties())
{
if (pInfo.PropertyType.Name.StartsWith("Nullable"))
{
table.Columns.Add(pInfo.Name, pInfo.PropertyType.GetGenericArguments()[0]);
}
else
{
table.Columns.Add(pInfo.Name, pInfo.PropertyType);
}
}
}
}
DataRow row = table.NewRow();
foreach (PropertyInfo pInfo in type.GetProperties())
{
string columnName = pInfo.Name;
if (table.Columns.Contains(columnName))
{
row[columnName] = pInfo.GetValue(businessKey, null);
}
}
table.Rows.Add(row);
return dataSet;
}
/// <summary>
/// 创建立一个业务逻辑键
/// </summary>
/// <param name="key"></param>
/// <param name="mode"></param>
/// <returns></returns>
public static BusinessKey CreateKey(string name, TransactionMode mode)
{
BusinessKey businessKey = new BusinessKey();
businessKey.Name = name;
businessKey.TransactionMode = mode.ToString();
return businessKey;
}
/// <summary>
/// 从 DataSet 里获取一个业务逻辑键, 并决定是否要在 DataSet 删除他
/// </summary>
/// <param name="dataSet"></param>
/// <param name="isRemove"></param>
/// <returns></returns>
public static BusinessKey GetKey(DataSet dataSet, bool isRemove)
{
BusinessKey businessKey = new BusinessKey();
DataTable table = dataSet.Tables["BusinessKey"];
try
{
DataRow row = table.Rows[0];
Type classType = typeof(BusinessKey);
foreach (PropertyInfo propertyInfo in classType.GetProperties())
{
object value = row[propertyInfo.Name];
if (value != null && value != System.DBNull.Value)
{
propertyInfo.SetValue(businessKey, value, null);
}
}
if (isRemove)
{
dataSet.Tables.Remove("BusinessKey");
}
}
catch
{
return null;
}
return businessKey;
}
/// <summary>
/// 创建立一个业务逻辑键
/// </summary>
/// <param name="key"></param>
/// <param name="mode"></param>
/// <param name="dbName"></param>
/// <param name="className"></param>
/// <returns></returns>
public static BusinessKey CreateKey(string name, TransactionMode mode, string dbName, string provider)
{
BusinessKey businessKey = new BusinessKey();
businessKey.Name = name;
businessKey.TransactionMode = mode.ToString();
businessKey.DbName = dbName;
businessKey.Provider = provider;
return businessKey;
}
