DataRow.ItemArray Property
Important
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Gets or sets all the values for this row through an array.
public:
property cli::array <System::Object ^> ^ ItemArray { cli::array <System::Object ^> ^ get(); void set(cli::array <System::Object ^> ^ value); };
public object?[] ItemArray { get; set; }
public object[] ItemArray { get; set; }
member this.ItemArray : obj[] with get, set
Public Property ItemArray As Object()
An array of type Object.
The array is larger than the number of columns in the table.
A value in the array does not match its DataType in its respective DataColumn.
An edit broke a constraint.
An edit tried to change the value of a read-only column.
An edit tried to put a null value in a column where AllowDBNull of the DataColumn object is false
.
The row has been deleted.
The following examples show how to get and set values using the ItemArray property.
private void CreateRowsWithItemArray()
{
// Make a DataTable using the function below.
DataTable dt = MakeTableWithAutoIncrement();
DataRow relation;
// Declare the array variable.
object [] rowArray = new object[2];
// Create 10 new rows and add to DataRowCollection.
for(int i = 0; i <10; i++)
{
rowArray[0]=null;
rowArray[1]= "item " + i;
relation = dt.NewRow();
relation.ItemArray = rowArray;
dt.Rows.Add(relation);
}
PrintTable(dt);
}
private DataTable MakeTableWithAutoIncrement()
{
// Make a table with one AutoIncrement column.
DataTable table = new DataTable("table");
DataColumn idColumn = new DataColumn("id",
Type.GetType("System.Int32"));
idColumn.AutoIncrement = true;
idColumn.AutoIncrementSeed = 10;
table.Columns.Add(idColumn);
DataColumn firstNameColumn = new DataColumn("Item",
Type.GetType("System.String"));
table.Columns.Add(firstNameColumn);
return table;
}
private void PrintTable(DataTable table)
{
foreach(DataRow row in table.Rows)
{
foreach(DataColumn column in table.Columns)
{
Console.WriteLine(row[column]);
}
}
}
Private Sub CreateRowsWithItemArray()
' Make a DataTable using the function below.
Dim dt As DataTable = MakeTableWithAutoIncrement()
Dim relation As DataRow
' Declare the array variable.
Dim rowArray(1) As Object
' Create 10 new rows and add to DataRowCollection.
Dim i As Integer
For i = 0 to 9
rowArray(0) = DBNull.Value
rowArray(1)= "item " & i.ToString()
relation = dt.NewRow()
relation.ItemArray = rowArray
dt.Rows.Add(relation)
Next
PrintTable(dt)
End Sub
Private Function MakeTableWithAutoIncrement() As DataTable
' Make a table with one AutoIncrement column.
Dim table As New DataTable("table")
Dim idColumn As New DataColumn("id", _
Type.GetType("System.Int32"))
idColumn.AutoIncrement = True
idColumn.AutoIncrementSeed = 10
table.Columns.Add (idColumn)
Dim firstNameColumn As New DataColumn( _
"Item", Type.GetType("System.String"))
table.Columns.Add(firstNameColumn)
MakeTableWithAutoIncrement = table
End Function
Private Sub PrintTable(table As DataTable)
Dim row As DataRow
Dim column As DataColumn
For Each row in table.Rows
For Each column in table.Columns
Console.WriteLine(row(column))
Next
Next
End Sub
You can use this property to set or get values for this row through an array. If you use this property to set values, the array must have the same size and ordering as the column collection. Passing null
in the ItemArray indicates that no value was specified.
Users can generate exceptions in the ColumnChanging event or the RowChanging event.
Product | Versions |
---|---|
.NET | Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
.NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
.NET Standard | 2.0, 2.1 |
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