DataGridTableStyle.HeaderForeColor Vlastnost
Definice
Důležité
Některé informace platí pro předběžně vydaný produkt, který se může zásadně změnit, než ho výrobce nebo autor vydá. Microsoft neposkytuje žádné záruky, výslovné ani předpokládané, týkající se zde uváděných informací.
Získá nebo nastaví barvu popředí záhlaví.
public:
property System::Drawing::Color HeaderForeColor { System::Drawing::Color get(); void set(System::Drawing::Color value); };
public System.Drawing.Color HeaderForeColor { get; set; }
member this.HeaderForeColor : System.Drawing.Color with get, set
Public Property HeaderForeColor As Color
Hodnota vlastnosti
A Color , který představuje barvu popředí záhlaví.
Příklady
Následující příklad kódu ukazuje použití tohoto člena.
private:
void Create_Table()
{
// Create DataSet.
myDataSet = gcnew DataSet( "myDataSet" );
// Create DataTable.
DataTable^ myCustomerTable = gcnew DataTable( "Customers" );
// Create two columns, and add them to the table.
DataColumn^ CustID = gcnew DataColumn( "CustID",int::typeid );
DataColumn^ CustName = gcnew DataColumn( "CustName" );
myCustomerTable->Columns->Add( CustID );
myCustomerTable->Columns->Add( CustName );
// Add table to DataSet.
myDataSet->Tables->Add( myCustomerTable );
dataGrid1->SetDataBinding( myDataSet, "Customers" );
myTableStyle = gcnew DataGridTableStyle;
myTableStyle->MappingName = "Customers";
myTableStyle->HeaderBackColorChanged += gcnew System::EventHandler( this, &Form1::HeaderBackColorChangedHandler );
myTableStyle->HeaderForeColorChanged += gcnew System::EventHandler( this, &Form1::HeaderForeColorChangedHandler );
}
// Change header background color.
void OnHeaderBackColor_Click( Object^ /*sender*/, System::EventArgs^ /*e*/ )
{
dataGrid1->TableStyles->Clear();
String^ str = dynamic_cast<String^>(comboBox1->SelectedItem);
if ( str->Equals( "Red" ) )
myTableStyle->ForeColor = Color::Red;
else
if ( str->Equals( "Yellow" ) )
myTableStyle->ForeColor = Color::Yellow;
else
if ( str->Equals( "Blue" ) )
myTableStyle->ForeColor = Color::Blue;
myTableStyle->AlternatingBackColor = Color::LightGray;
dataGrid1->TableStyles->Add( myTableStyle );
}
void HeaderBackColorChangedHandler( Object^ /*sender*/, EventArgs^ /*e*/ )
{
MessageBox::Show( String::Concat( "Changed Header Background color to : ", comboBox1->SelectedItem ), "Success", MessageBoxButtons::OK, MessageBoxIcon::Exclamation );
}
// Change header forecolor.
void OnHeaderForeColor_Click( Object^ /*sender*/, System::EventArgs^ /*e*/ )
{
dataGrid1->TableStyles->Clear();
String^ str = dynamic_cast<String^>(comboBox1->SelectedItem);
if ( str->Equals( "Green" ) )
myTableStyle->ForeColor = Color::Green;
else
if ( str->Equals( "White" ) )
myTableStyle->ForeColor = Color::White;
else
if ( str->Equals( "Violet" ) )
myTableStyle->ForeColor = Color::Violet;
myTableStyle->AlternatingBackColor = Color::LightGray;
dataGrid1->TableStyles->Add( myTableStyle );
}
private void Create_Table()
{
// Create DataSet.
myDataSet = new DataSet("myDataSet");
// Create DataTable.
DataTable myCustomerTable = new DataTable("Customers");
// Create two columns, and add them to the table.
DataColumn CustID = new DataColumn("CustID", typeof(int));
DataColumn CustName = new DataColumn("CustName");
myCustomerTable.Columns.Add(CustID);
myCustomerTable.Columns.Add(CustName);
// Add table to DataSet.
myDataSet.Tables.Add(myCustomerTable);
dataGrid1.SetDataBinding(myDataSet,"Customers");
myTableStyle = new DataGridTableStyle();
myTableStyle.MappingName = "Customers";
myTableStyle.HeaderBackColorChanged +=
new System.EventHandler(HeaderBackColorChangedHandler);
myTableStyle.HeaderForeColorChanged +=
new System.EventHandler(HeaderForeColorChangedHandler);
}
// Change header background color.
private void OnHeaderBackColor_Click(object sender, System.EventArgs e)
{
dataGrid1.TableStyles.Clear ();
switch(comboBox1.SelectedItem.ToString())
{
case "Red":
myTableStyle.HeaderBackColor = Color.Red;
break;
case "Yellow":
myTableStyle.HeaderBackColor = Color.Yellow ;
break;
case "Blue":
myTableStyle.HeaderBackColor = Color.Blue ;
break;
}
myTableStyle.AlternatingBackColor = Color.LightGray;
dataGrid1.TableStyles.Add(myTableStyle);
}
private void HeaderBackColorChangedHandler(object sender,EventArgs e)
{
MessageBox.Show("Changed Header Background color to : " +
comboBox1.SelectedItem.ToString(),"Success", MessageBoxButtons.OK,
MessageBoxIcon.Exclamation);
}
// Change header forecolor.
private void OnHeaderForeColor_Click(object sender, System.EventArgs e)
{
dataGrid1.TableStyles.Clear();
switch(comboBox2.SelectedItem.ToString())
{
case "Green":
myTableStyle.HeaderForeColor = Color.Green;
break;
case "White":
myTableStyle.HeaderForeColor = Color.White;
break;
case "Violet":
myTableStyle.HeaderForeColor = Color.Violet;
break;
}
myTableStyle.AlternatingBackColor = Color.LightGray;
dataGrid1.TableStyles.Add(myTableStyle);
}
Private Sub Create_Table()
' Create DataSet.
myDataSet = New DataSet("myDataSet")
' Create DataTable.
Dim myCustomerTable As New DataTable("Customers")
' Create two columns, and add them to the table.
Dim CustID As New DataColumn("CustID", GetType(Integer))
Dim CustName As New DataColumn("CustName")
myCustomerTable.Columns.Add(CustID)
myCustomerTable.Columns.Add(CustName)
' Add table to DataSet.
myDataSet.Tables.Add(myCustomerTable)
dataGrid1.SetDataBinding(myDataSet, "Customers")
myTableStyle = New DataGridTableStyle()
myTableStyle.MappingName = "Customers"
AddHandler myTableStyle.HeaderBackColorChanged, AddressOf HeaderBackColorChangedHandler
AddHandler myTableStyle.HeaderForeColorChanged, AddressOf HeaderForeColorChangedHandler
End Sub
' Change header background color.
Private Sub OnHeaderBackColor_Click(sender As Object, e As System.EventArgs) Handles button1.Click
dataGrid1.TableStyles.Clear()
Select Case comboBox1.SelectedItem.ToString()
Case "Red"
myTableStyle.HeaderBackColor = Color.Red
Case "Yellow"
myTableStyle.HeaderBackColor = Color.Yellow
Case "Blue"
myTableStyle.HeaderBackColor = Color.Blue
End Select
myTableStyle.AlternatingBackColor = Color.LightGray
dataGrid1.TableStyles.Add(myTableStyle)
End Sub
Private Sub HeaderBackColorChangedHandler(ByVal sender As Object, ByVal e As EventArgs)
MessageBox.Show("Changed Header Background color to : " + comboBox1.SelectedItem.ToString(), "Success", MessageBoxButtons.OK, MessageBoxIcon.Exclamation)
End Sub
' Change header forecolor.
Private Sub OnHeaderForeColor_Click(sender As Object, e As System.EventArgs) Handles button2.Click
dataGrid1.TableStyles.Clear()
Select Case comboBox2.SelectedItem.ToString()
Case "Green"
myTableStyle.HeaderForeColor = Color.Green
Case "White"
myTableStyle.HeaderForeColor = Color.White
Case "Violet"
myTableStyle.HeaderForeColor = Color.Violet
End Select
myTableStyle.AlternatingBackColor = Color.LightGray
dataGrid1.TableStyles.Add(myTableStyle)
End Sub