public void RemoveAt()
{
DataTableCollection tbcol = _dataset[0].Tables;
tbcol.Add(_tables[0]);
tbcol.Add("table1");
try
{
tbcol.RemoveAt(-1);
Assert.False(true);
}
catch (IndexOutOfRangeException e)
{
}
try
{
tbcol.RemoveAt(101);
Assert.False(true);
}
catch (IndexOutOfRangeException e)
{
}
tbcol.RemoveAt(1);
Assert.Equal(1, tbcol.Count);
tbcol.RemoveAt(0);
Assert.Equal(0, tbcol.Count);
}
public void RemoveAt()
{
DataTableCollection tbcol = _dataset[0].Tables;
tbcol.Add(_tables[0]);
tbcol.Add("table1");
try
{
tbcol.RemoveAt(-1);
Fail("the index was out of bound: must have failed");
}
catch (IndexOutOfRangeException e)
{
}
try
{
tbcol.RemoveAt(101);
Fail("the index was out of bound: must have failed");
}
catch (IndexOutOfRangeException e)
{
}
tbcol.RemoveAt(1);
AssertEquals("test#5", 1, tbcol.Count);
tbcol.RemoveAt(0);
AssertEquals("test#6", 0, tbcol.Count);
}
public void RemoveAt()
{
DataTableCollection tbcol = _dataset[0].Tables;
tbcol.Add(_tables[0]);
tbcol.Add("table1");
Assert.Throws <IndexOutOfRangeException>(() => tbcol.RemoveAt(-1));
Assert.Throws <IndexOutOfRangeException>(() => tbcol.RemoveAt(101));
tbcol.RemoveAt(1);
Assert.Equal(1, tbcol.Count);
tbcol.RemoveAt(0);
Assert.Equal(0, tbcol.Count);
}
/// <summary>
/// 过滤
/// </summary>
/// <param name="dts"></param>
/// <param name="filter"></param>
/// <returns></returns>
public static void Remove(this DataTableCollection dts, Func <DataTable, bool> filter)
{
HashSet <int> tbIndexs = new HashSet <int>();
int index = 0;
foreach (DataTable dt in dts)
{
if (!filter(dt))
{
tbIndexs.Add(index);
}
index++;
}
foreach (int tbIndex in tbIndexs)
{
dts.RemoveAt(tbIndex);
}
}
/// <summary>
/// Populates the collection.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="classInfo">The class info.</param>
/// <param name="collection">The collection.</param>
/// <param name="dataSet">The data set.</param>
protected static void PopulateCollection <T>(ClassInfo classInfo, MetaStorageCollectionBase <T> collection, DataSet dataSet) where T : OrderGroup
{
#region ArgumentNullExceptions
if (dataSet == null)
{
throw new ArgumentNullException("dataSet");
}
#endregion
DataTableCollection tables = dataSet.Tables;
if (tables == null || tables.Count == 0)
{
return;
}
// Get the collection that contains ids of all items returned
DataRowCollection dataRowCol = tables[0].Rows;
// No ids returned
if (dataRowCol == null || dataRowCol.Count == 0)
{
return;
}
int numberOfRecords = dataRowCol.Count;
int[] idArray = new int[numberOfRecords];
// Populate array
for (int index = 0; index < numberOfRecords; index++)
{
idArray[index] = (int)dataRowCol[index]["OrderGroupId"];
}
// Remove id collection
tables.RemoveAt(0);
// Map table names
foreach (DataTable table in dataSet.Tables)
{
if (table.Rows.Count > 0)
{
table.TableName = table.Rows[0]["TableName"].ToString();
}
}
// Cycle through id Collection
foreach (int id in idArray)
{
string filter = String.Format("OrderGroupId = '{0}'", id.ToString());
// Populate the meta object data first
// Meta data will be always in the second table returned
DataView view = DataHelper.CreateDataView(dataSet.Tables["OrderGroup"], filter);
// Only read one record, since we are populating only one object
// reader.Read();
// Create instance of the object specified and populate it
T obj = (T)classInfo.CreateInstance();
obj.Load(view[0]);
collection.Add(obj);
// Populate collections within object
obj.PopulateCollections(dataSet.Tables, filter);
/*
* if (dataSet.Tables.Count != 0)
* {
* throw new ArgumentOutOfRangeException("Tables", "Stored Procedure returned too many tables");
* }
* */
}
}
public void RemoveAt(Int32 index)
{
_tables.RemoveAt(index);
}
