| public static CreateParentDataTable ( ) : DataTable | ||
| Результат | DataTable | |
public void RemoveAt_Integer()
{
DataTable dt = DataProvider.CreateParentDataTable();
dt.Columns.CollectionChanged += new CollectionChangeEventHandler(Columns_CollectionChanged1);
int originalColumnCount = dt.Columns.Count;
dt.Columns.RemoveAt(0);
Assert.Equal(originalColumnCount - 1, dt.Columns.Count);
Assert.True(_eventOccurred);
Assert.Throws <IndexOutOfRangeException>(() =>
{
dt.Columns.RemoveAt(-1);
});
}
public void constraintName()
{
DataTable dtParent = DataProvider.CreateParentDataTable();
UniqueConstraint uc = null;
uc = new UniqueConstraint(dtParent.Columns[0]);
// default
Assert.Equal(string.Empty, uc.ConstraintName);
uc.ConstraintName = "myConstraint";
// set/get
Assert.Equal("myConstraint", uc.ConstraintName);
}
public new void ToString()
{
DataTable dtParent = DataProvider.CreateParentDataTable();
DataTable dtChild = DataProvider.CreateChildDataTable();
ForeignKeyConstraint fc = null;
fc = new ForeignKeyConstraint(dtParent.Columns[0], dtChild.Columns[0]);
// ToString - default
Assert.Equal(string.Empty, fc.ToString());
fc = new ForeignKeyConstraint("myConstraint", dtParent.Columns[0], dtChild.Columns[0]);
// Tostring - Constraint name
Assert.Equal("myConstraint", fc.ToString());
}
public void CopyTo()
{
DataTable dt = DataProvider.CreateParentDataTable();
DataRow[] arr = new DataRow[dt.Rows.Count];
dt.Rows.CopyTo(arr, 0);
Assert.Equal(dt.Rows.Count, arr.Length);
int index = 0;
foreach (DataRow dr in dt.Rows)
{
Assert.Equal(dr, arr[index]);
index++;
}
}
public void Item_Property()
{
DataTable dt = DataProvider.CreateParentDataTable();
DataView dv = new DataView(dt);
DataRowView drv = dv[0];
// Item 'ParentId'
Assert.Equal(dt.Rows[0]["ParentId"], drv["ParentId"]);
// Item 'ParentDateTime'
Assert.Equal(dt.Rows[0]["ParentDateTime"], drv["ParentDateTime"]);
// Item invalid - excpetion
AssertExtensions.Throws <ArgumentException>(null, () => drv["something"]);
}
public void Item()
{
DataTable dt = DataProvider.CreateParentDataTable();
DataView dv = new DataView(dt);
DataRowView drv = dv[0];
// Item 0
Assert.Equal(dt.Rows[0][0], drv[0]);
// Item 4
Assert.Equal(dt.Rows[0][4], drv[4]);
// Item -1 - excpetion
Assert.Throws <IndexOutOfRangeException>(() => drv[-1]);
}
public void ApplyDefaultSort()
{
DataTable dt = DataProvider.CreateParentDataTable();
DataView dv = new DataView(dt);
// ApplyDefaultSort - default value
Assert.False(dv.ApplyDefaultSort);
// ApplyDefaultSort - true
dv.ApplyDefaultSort = true;
Assert.True(dv.ApplyDefaultSort);
// ApplyDefaultSort - false
dv.ApplyDefaultSort = false;
Assert.False(dv.ApplyDefaultSort);
}
public void DataRowCollection_Find_O3()
{
DataTable dt = DataProvider.CreateParentDataTable();
dt.PrimaryKey = new DataColumn[] { dt.Columns[0], dt.Columns[1] };
//Prepare values array
object[] arr = new object[2];
arr[0] = 2;
arr[1] = "2-String1";
Assert.Equal(dt.Rows[1], dt.Rows.Find(arr));
arr[0] = 8;
Assert.Equal(null, dt.Rows.Find(arr));
}
public void TestContains_ByColumnName()
{
DataTable dt = DataProvider.CreateParentDataTable();
Assert.Equal(true, dt.Columns.Contains("ParentId"));
Assert.Equal(true, dt.Columns.Contains("String1"));
Assert.Equal(true, dt.Columns.Contains("ParentBool"));
Assert.Equal(false, dt.Columns.Contains("ParentId1"));
dt.Columns.Remove("ParentId");
Assert.Equal(false, dt.Columns.Contains("ParentId"));
dt.Columns["String1"].ColumnName = "Temp1";
Assert.Equal(false, dt.Columns.Contains("String1"));
Assert.Equal(true, dt.Columns.Contains("Temp1"));
}
[Fact] // this [Int32]
public void Indexer1()
{
DataTable dt = DataProvider.CreateParentDataTable();
DataColumn col;
col = dt.Columns[5];
Assert.NotNull(col);
Assert.Equal("ParentBool", col.ColumnName);
col = dt.Columns[0];
Assert.NotNull(col);
Assert.Equal("ParentId", col.ColumnName);
col = dt.Columns[3];
Assert.NotNull(col);
Assert.Equal("ParentDateTime", col.ColumnName);
}
public void Ctor_DataColumnPrimary()
{
DataTable dtParent = DataProvider.CreateParentDataTable();
UniqueConstraint uc = new UniqueConstraint(dtParent.Columns[0], false);
dtParent.Constraints.Add(uc);
// primary key 1
Assert.Equal(0, dtParent.PrimaryKey.Length);
dtParent.Constraints.Remove(uc);
uc = new UniqueConstraint(dtParent.Columns[0], true);
dtParent.Constraints.Add(uc);
// primary key 2
Assert.Equal(1, dtParent.PrimaryKey.Length);
}
public void extendedProperties()
{
DataTable dtParent = DataProvider.CreateParentDataTable();
DataTable dtChild = DataProvider.CreateParentDataTable();
ForeignKeyConstraint fc = null;
fc = new ForeignKeyConstraint(dtParent.Columns[0], dtChild.Columns[0]);
PropertyCollection pc = fc.ExtendedProperties;
// Checking ExtendedProperties default
Assert.Equal(true, fc != null);
// Checking ExtendedProperties count
Assert.Equal(0, pc.Count);
}
public void DataRowCollection_Contains_O3()
{
DataTable dt = DataProvider.CreateParentDataTable();
dt.PrimaryKey = new DataColumn[] { dt.Columns[0], dt.Columns[1] };
//Prepare values array
object[] arr = new object[2];
arr[0] = 1;
arr[1] = "1-String1";
Assert.Equal(true, dt.Rows.Contains(arr));
arr[0] = 8;
Assert.Equal(false, dt.Rows.Contains(arr));
}
[Fact] // this [String]
public void Indexer2()
{
DataTable dt = DataProvider.CreateParentDataTable();
DataColumnCollection cols = dt.Columns;
DataColumn col;
col = cols["ParentId"];
Assert.NotNull(col);
Assert.Equal("ParentId", col.ColumnName);
col = cols["parentiD"];
Assert.NotNull(col);
Assert.Equal("ParentId", col.ColumnName);
col = cols["DoesNotExist"];
Assert.Null(col);
}
[Fact] // this [String]
public void Indexer2_Name_Null()
{
DataTable dt = DataProvider.CreateParentDataTable();
try
{
DataColumn column = dt.Columns[null];
Assert.False(true);
}
catch (ArgumentNullException ex)
{
Assert.Equal(typeof(ArgumentNullException), ex.GetType());
Assert.Null(ex.InnerException);
Assert.NotNull(ex.Message);
Assert.Equal("name", ex.ParamName);
}
}
public void DataSet()
{
var ds = new DataSet();
DataTable dtChild = DataProvider.CreateChildDataTable();
DataTable dtParent = DataProvider.CreateParentDataTable();
ds.Tables.Add(dtParent);
ds.Tables.Add(dtChild);
DataRelation dRel;
dRel = new DataRelation("MyRelation", dtParent.Columns[0], dtChild.Columns[0]);
ds.Relations.Add(dRel);
// DataSet
Assert.Equal(ds, dRel.DataSet);
}
[Fact] // this [Int32]
public void Indexer1_Index_Overflow()
{
DataTable dt = DataProvider.CreateParentDataTable();
try
{
DataColumn column = dt.Columns[6];
Assert.False(true);
}
catch (IndexOutOfRangeException ex)
{
// Cannot find column 6
Assert.Equal(typeof(IndexOutOfRangeException), ex.GetType());
Assert.Null(ex.InnerException);
Assert.NotNull(ex.Message);
}
}
public void Bug79233()
{
DataSet ds = new DataSet();
DataTable dtChild = DataProvider.CreateChildDataTable();
DataTable dtParent = DataProvider.CreateParentDataTable();
ds.Tables.Add(dtParent);
ds.Tables.Add(dtChild);
dtParent.Rows.Clear();
dtChild.Rows.Clear();
DataRelation dr = dtParent.ChildRelations.Add(dtParent.Columns[0], dtChild.Columns[0]);
Assert.Equal("Relation1", dr.RelationName);
dr = dtChild.ChildRelations.Add(dtChild.Columns[0], dtParent.Columns[0]);
Assert.Equal("Relation2", dr.RelationName);
}
public void Ctor_DclmDclm()
{
DataTable dtParent = DataProvider.CreateParentDataTable();
DataTable dtChild = DataProvider.CreateChildDataTable();
var ds = new DataSet();
ds.Tables.Add(dtChild);
ds.Tables.Add(dtParent);
ForeignKeyConstraint fc = new ForeignKeyConstraint(dtParent.Columns[0], dtChild.Columns[0]);
Assert.Equal(0, dtChild.Constraints.Count);
Assert.Equal(0, dtParent.Constraints.Count);
Assert.Equal(0, ds.Relations.Count);
dtChild.Constraints.Add(fc);
Assert.Equal(1, dtChild.Constraints.Count);
Assert.Equal(1, dtParent.Constraints.Count);
Assert.Equal(0, ds.Relations.Count);
Assert.Equal(typeof(UniqueConstraint), dtParent.Constraints[0].GetType());
Assert.Equal(typeof(ForeignKeyConstraint), dtChild.Constraints[0].GetType());
Assert.Equal(0, dtParent.PrimaryKey.Length);
dtChild.Constraints.Clear();
dtParent.Constraints.Clear();
ds.Relations.Add(new DataRelation("myRelation", dtParent.Columns[0], dtChild.Columns[0]));
Assert.Equal(1, dtChild.Constraints.Count);
Assert.Equal(1, dtParent.Constraints.Count);
Assert.Equal(typeof(UniqueConstraint), dtParent.Constraints[0].GetType());
Assert.Equal(typeof(ForeignKeyConstraint), dtChild.Constraints[0].GetType());
Assert.Equal(0, dtParent.PrimaryKey.Length);
}
public void Expression_Simple()
{
DataTable dt = DataProvider.CreateParentDataTable();
//Simple expression --> not aggregate
DataColumn dc = new DataColumn("expr", typeof(decimal));
dt.Columns.Add(dc);
dt.Columns["expr"].Expression = dt.Columns[0].ColumnName + "*0.52 +" + dt.Columns[0].ColumnName;
//Check the values
//double temp;
string temp;
string str;
foreach (DataRow dr in dt.Rows)
{
str = (((int)dr[0]) * 0.52 + ((int)dr[0])).ToString();
if (str.Length > 3)
{
temp = str.Substring(0, 4);
}
else
{
temp = str;
}
if (dr["expr"].ToString().Length > 3)
{
str = dr["expr"].ToString().Substring(0, 4);
}
else
{
str = dr["expr"].ToString();
}
if (str == 7.60m.ToString())
{
str = 7.6.ToString();
}
Assert.Equal(temp, str);
}
}
public void Item()
{
//create the source datatable
DataTable dt = DataProvider.CreateParentDataTable();
//create the dataview for the table
DataView dv = new DataView(dt);
// DataView Item 0
Assert.Equal(dv[0].Row, dt.Rows[0]);
// DataView Item 4
Assert.Equal(dv[4].Row, dt.Rows[4]);
dv.RowFilter = "ParentId in (1,3,6)";
// DataView Item 0,DataTable with filter
Assert.Equal(dv[1].Row, dt.Rows[2]);
}
public void IsPrimaryKey()
{
DataTable dtParent = DataProvider.CreateParentDataTable();
UniqueConstraint uc = null;
uc = new UniqueConstraint(dtParent.Columns[0], false);
dtParent.Constraints.Add(uc);
// primary key 1
Assert.False(uc.IsPrimaryKey);
dtParent.Constraints.Remove(uc);
uc = new UniqueConstraint(dtParent.Columns[0], true);
dtParent.Constraints.Add(uc);
// primary key 2
Assert.True(uc.IsPrimaryKey);
}
public void DataRowCollection_Add_D1()
{
DataTable dt = DataProvider.CreateParentDataTable();
dt.Rows.Clear();
DataRow dr = dt.NewRow();
dr["ParentId"] = 10;
dr["String1"] = "string1";
dr["String2"] = string.Empty;
dr["ParentDateTime"] = new DateTime(2004, 12, 15);
dr["ParentDouble"] = 3.14;
dr["ParentBool"] = false;
dt.Rows.Add(dr);
Assert.Equal(1, dt.Rows.Count);
Assert.Equal(dr, dt.Rows[0]);
}
public void Columns()
{
//int RowCount;
var ds = new DataSet();
DataTable dtParent = DataProvider.CreateParentDataTable();
DataTable dtChild = DataProvider.CreateChildDataTable();
ds.Tables.Add(dtParent);
ds.Tables.Add(dtChild);
ForeignKeyConstraint fc = null;
fc = new ForeignKeyConstraint(dtParent.Columns[0], dtChild.Columns[0]);
// Columns
Assert.Equal(dtChild.Columns[0], fc.Columns[0]);
// Columns count
Assert.Equal(1, fc.Columns.Length);
}
public void Equals_O()
{
var ds = new DataSet();
DataTable dtParent = DataProvider.CreateParentDataTable();
ds.Tables.Add(dtParent);
UniqueConstraint uc1, uc2;
uc1 = new UniqueConstraint(dtParent.Columns[0]);
uc2 = new UniqueConstraint(dtParent.Columns[1]);
// different columnn
Assert.False(uc1.Equals(uc2));
//Two System.Data.ForeignKeyConstraint are equal if they constrain the same columns.
// same column
uc2 = new UniqueConstraint(dtParent.Columns[0]);
Assert.True(uc1.Equals(uc2));
}
public void Delete()
{
DataTable dt = DataProvider.CreateParentDataTable();
DataView dv = new DataView(dt);
DataRowView drv = dv[0];
int tableRowsCount = dt.Rows.Count;
int viewRowCount = dv.Count;
// DataView Count
drv.Delete();
Assert.Equal(viewRowCount - 1, dv.Count);
//the table count should stay the same until EndEdit is invoked
// Table Count
Assert.Equal(tableRowsCount, dt.Rows.Count);
// DataRowState deleted
Assert.Equal(DataRowState.Deleted, drv.Row.RowState);
}
public void Generate()
{
Exception tmpEx = new Exception();
DataTable tbl = DataProvider.CreateParentDataTable();
tbl.Columns[0].ReadOnly = true;
//check for int column
// ReadOnlyException - EndEdit
//tbl.Rows[0].BeginEdit(); // this throw an exception but according to MSDN it shouldn't !!!
//tbl.Rows[0][0] = 99 ;
Assert.Throws <ReadOnlyException>(() =>
{
tbl.Rows[0][0] = 99;
});
// ReadOnlyException - ItemArray
Assert.Throws <ReadOnlyException>(() =>
{
tbl.Rows[0].ItemArray = new object[] { 99, "value", "value" };
});
//check for string column
tbl.Columns[0].ReadOnly = false;
tbl.Columns[1].ReadOnly = true;
// ReadOnlyException - EndEdit
//tbl.Rows[0].BeginEdit(); // this throw an exception but according to MSDN it shouldn't !!!
//tbl.Rows[0][0] = 99 ;
Assert.Throws <ReadOnlyException>(() =>
{
tbl.Rows[0][1] = "NewValue";
});
// ReadOnlyException - ItemArray
Assert.Throws <ReadOnlyException>(() =>
{
tbl.Rows[0].ItemArray = new object[] { 99, "value", "value" };
});
}
public void constraintName()
{
var ds = new DataSet();
DataTable dtParent = DataProvider.CreateParentDataTable();
DataTable dtChild = DataProvider.CreateChildDataTable();
ds.Tables.Add(dtParent);
ds.Tables.Add(dtChild);
ForeignKeyConstraint fc = null;
fc = new ForeignKeyConstraint(dtParent.Columns[0], dtChild.Columns[0]);
// default
Assert.Equal(string.Empty, fc.ConstraintName);
fc.ConstraintName = "myConstraint";
// set/get
Assert.Equal("myConstraint", fc.ConstraintName);
}
public void RowVersion()
{
DataTable dt = DataProvider.CreateParentDataTable();
DataView dv = new DataView(dt);
dt.Columns[1].DefaultValue = "default";
DataRowView drv = dv[0];
dt.Rows.Add(new object[] { 99 });
dt.Rows[1].Delete();
dt.Rows[2].BeginEdit();
dt.Rows[2][1] = "aaa";
dv.RowStateFilter = DataViewRowState.CurrentRows;
// check Current
Assert.Equal(DataRowVersion.Current, drv.RowVersion);
dv.RowStateFilter = DataViewRowState.Deleted;
// check Original
Assert.Equal(DataRowVersion.Current, drv.RowVersion);
}
public void Nested()
{
var ds = new DataSet();
DataTable dtChild = DataProvider.CreateChildDataTable();
DataTable dtParent = DataProvider.CreateParentDataTable();
ds.Tables.Add(dtParent);
ds.Tables.Add(dtChild);
DataRelation dRel;
dRel = new DataRelation(null, dtParent.Columns[0], dtChild.Columns[0]);
ds.Relations.Add(dRel);
// Nested default
Assert.False(dRel.Nested);
dRel.Nested = true;
// Nested get/set
Assert.True(dRel.Nested);
}
