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Add DataTable <=> Model Convert Helper

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筱傑
2019-06-15 09:42:51 +08:00
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parent 833d4633ea
commit 976700da4f
1 changed files with 153 additions and 0 deletions
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DataHelper/ModelHandler.cs Normal file
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/// <summary>
/// DataTable<6C><65>ʵ<EFBFBD><CAB5><EFBFBD>໥<EFBFBD><E0BBA5>ת<EFBFBD><D7AA>
/// </summary>
/// <typeparam name="T">ʵ<><CAB5><EFBFBD><EFBFBD></typeparam>
public class ModelHandler<T> where T : new()
{
#region DataTableת<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
/// <summary>
/// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>б<EFBFBD><D0B1><EFBFBD><EFBFBD><EFBFBD>DataSet<65>ĵ<EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD>
/// </summary>
/// <param name="ds">DataSet</param>
/// <returns></returns>
public List<T> FillModel(DataSet ds)
{
if (ds == null || ds.Tables[0] == null || ds.Tables[0].Rows.Count == 0)
{
return null;
}
else
{
return FillModel(ds.Tables[0]);
}
}
/// <summary>
/// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>б<EFBFBD><D0B1><EFBFBD><EFBFBD><EFBFBD>DataSet<65>ĵ<EFBFBD>index<65><78><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD>
/// </summary>
public List<T> FillModel(DataSet ds, int index)
{
if (ds == null || ds.Tables.Count <= index || ds.Tables[index].Rows.Count == 0)
{
return null;
}
else
{
return FillModel(ds.Tables[index]);
}
}
/// <summary>
/// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>б<EFBFBD><D0B1><EFBFBD><EFBFBD><EFBFBD>DataTable<6C><65><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD>
/// </summary>
public List<T> FillModel(DataTable dt)
{
if (dt == null || dt.Rows.Count == 0)
{
return null;
}
List<T> modelList = new List<T>();
foreach (DataRow dr in dt.Rows)
{
//T model = (T)Activator.CreateInstance(typeof(T));
T model = new T();
for (int i = 0; i < dr.Table.Columns.Count; i++)
{
PropertyInfo propertyInfo = model.GetType().GetProperty(dr.Table.Columns[i].ColumnName);
if (propertyInfo != null && dr[i] != DBNull.Value)
propertyInfo.SetValue(model, dr[i], null);
}
modelList.Add(model);
}
return modelList;
}
/// <summary>
/// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>DataRow<6F><77><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD>
/// </summary>
public T FillModel(DataRow dr)
{
if (dr == null)
{
return default(T);
}
//T model = (T)Activator.CreateInstance(typeof(T));
T model = new T();
for (int i = 0; i < dr.Table.Columns.Count; i++)
{
PropertyInfo propertyInfo = model.GetType().GetProperty(dr.Table.Columns[i].ColumnName);
if (propertyInfo != null && dr[i] != DBNull.Value)
propertyInfo.SetValue(model,dr[i],null);
}
return model;
}
#endregion
#region ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><EFBFBD><EFBFBD><EFBFBD>DataTable
/// <summary>
/// ʵ<><CAB5><EFBFBD><EFBFBD>ת<EFBFBD><D7AA><EFBFBD><EFBFBD>DataSet
/// </summary>
/// <param name="modelList">ʵ<><CAB5><EFBFBD><EFBFBD><EFBFBD>б<EFBFBD></param>
/// <returns></returns>
public DataSet FillDataSet(List<T> modelList)
{
if (modelList == null || modelList.Count == 0)
{
return null;
}
else
{
DataSet ds = new DataSet();
ds.Tables.Add(FillDataTable(modelList));
return ds;
}
}
/// <summary>
/// ʵ<><CAB5><EFBFBD><EFBFBD>ת<EFBFBD><D7AA><EFBFBD><EFBFBD>DataTable
/// </summary>
/// <param name="modelList">ʵ<><CAB5><EFBFBD><EFBFBD><EFBFBD>б<EFBFBD></param>
/// <returns></returns>
public DataTable FillDataTable(List<T> modelList)
{
if (modelList == null || modelList.Count == 0)
{
return null;
}
DataTable dt = CreateData(modelList[0]);
foreach(T model in modelList)
{
DataRow dataRow = dt.NewRow();
foreach (PropertyInfo propertyInfo in typeof(T).GetProperties())
{
dataRow[propertyInfo.Name] = propertyInfo.GetValue(model, null);
}
dt.Rows.Add(dataRow);
}
return dt;
}
/// <summary>
/// <20><><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD><C3B5><EFBFBD><EFBFBD>ṹ
/// </summary>
/// <param name="model">ʵ<><CAB5><EFBFBD><EFBFBD></param>
/// <returns></returns>
private DataTable CreateData(T model)
{
DataTable dataTable = new DataTable(typeof (T).Name);
foreach (PropertyInfo propertyInfo in typeof(T).GetProperties())
{
dataTable.Columns.Add(new DataColumn(propertyInfo.Name, propertyInfo.PropertyType));
}
return dataTable;
}
#endregion
}