Question

如何将list<entity>转换为 DataSet<entity>类型？

如何将list<entity>转换为 DataSet<entity>类型？

Answer 1

/// <summary>
/// List转换成DataSet
/// </summary>
/// <typeparam name="T">类型</typeparam>
/// <param name="list">将要转换的List</param>
/// <returns></returns>
public DataSet ConvertToDataSet<T>(IList<T> list)
{
if (list == null || list.Count <= 0)
{
return null;
}

DataSet ds = new DataSet();
DataTable dt = new DataTable(typeof(T).Name);
DataColumn column;
DataRow row;

System.Reflection.PropertyInfo[] myPropertyInfo = typeof(T).GetProperties(System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Instance);

foreach (T t in list)
{
if (t == null)
{
continue;
}

row = dt.NewRow();

for (int i = 0, j = myPropertyInfo.Length; i < j; i++)
{
System.Reflection.PropertyInfo pi = myPropertyInfo[i];

string name = pi.Name;

if (dt.Columns[name] == null)
{
column = new DataColumn(name, pi.PropertyType);
dt.Columns.Add(column);
}

row[name] = pi.GetValue(t, null);
}

dt.Rows.Add(row);
}

ds.Tables.Add(dt);

return ds;

}