DataGridViewCellFormattingEventArgs Konstruktor
Definisi
Penting
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Menginisialisasi instans baru kelas DataGridViewCellFormattingEventArgs.
public:
DataGridViewCellFormattingEventArgs(int columnIndex, int rowIndex, System::Object ^ value, Type ^ desiredType, System::Windows::Forms::DataGridViewCellStyle ^ cellStyle);
public DataGridViewCellFormattingEventArgs (int columnIndex, int rowIndex, object value, Type desiredType, System.Windows.Forms.DataGridViewCellStyle cellStyle);
public DataGridViewCellFormattingEventArgs (int columnIndex, int rowIndex, object? value, Type? desiredType, System.Windows.Forms.DataGridViewCellStyle? cellStyle);
public DataGridViewCellFormattingEventArgs (int columnIndex, int rowIndex, object? value, Type? desiredType, System.Windows.Forms.DataGridViewCellStyle cellStyle);
new System.Windows.Forms.DataGridViewCellFormattingEventArgs : int * int * obj * Type * System.Windows.Forms.DataGridViewCellStyle -> System.Windows.Forms.DataGridViewCellFormattingEventArgs
Public Sub New (columnIndex As Integer, rowIndex As Integer, value As Object, desiredType As Type, cellStyle As DataGridViewCellStyle)
Parameter
- columnIndex
- Int32
Indeks kolom sel yang menyebabkan peristiwa.
- rowIndex
- Int32
Indeks baris sel yang menyebabkan peristiwa.
- value
- Object
Isi sel.
- desiredType
- Type
Jenis yang akan dikonversi value
.
- cellStyle
- DataGridViewCellStyle
Gaya sel yang menyebabkan peristiwa.
Pengecualian
Contoh
Contoh kode berikut menunjukkan cara menggunakan DataGridViewCellFormattingEventArgs.
void dataGridView1_CellFormatting( Object^ /*sender*/, DataGridViewCellFormattingEventArgs^ e )
{
// If the column is the Artist column, check the
// value.
if ( this->dataGridView1->Columns[ e->ColumnIndex ]->Name->Equals( "Artist" ) )
{
if ( e->Value != nullptr )
{
// Check for the string "pink" in the cell.
String^ stringValue = dynamic_cast<String^>(e->Value);
stringValue = stringValue->ToLower();
if ( (stringValue->IndexOf( "pink" ) > -1) )
{
DataGridViewCellStyle^ pinkStyle = gcnew DataGridViewCellStyle;
//Change the style of the cell.
pinkStyle->BackColor = Color::Pink;
pinkStyle->ForeColor = Color::Black;
pinkStyle->Font = gcnew System::Drawing::Font( "Times New Roman",8,FontStyle::Bold );
e->CellStyle = pinkStyle;
}
}
}
else
if ( this->dataGridView1->Columns[ e->ColumnIndex ]->Name->Equals( "Release Date" ) )
{
ShortFormDateFormat( e );
}
}
//Even though the date internaly stores the year as YYYY, using formatting, the
//UI can have the format in YY.
void ShortFormDateFormat( DataGridViewCellFormattingEventArgs^ formatting )
{
if ( formatting->Value != nullptr )
{
try
{
System::Text::StringBuilder^ dateString = gcnew System::Text::StringBuilder;
DateTime theDate = DateTime::Parse( formatting->Value->ToString() );
dateString->Append( theDate.Month );
dateString->Append( "/" );
dateString->Append( theDate.Day );
dateString->Append( "/" );
dateString->Append( theDate.Year.ToString()->Substring( 2 ) );
formatting->Value = dateString->ToString();
formatting->FormattingApplied = true;
}
catch ( Exception^ /*notInDateFormat*/ )
{
// Set to false in case there are other handlers interested trying to
// format this DataGridViewCellFormattingEventArgs instance.
formatting->FormattingApplied = false;
}
}
}
private void dataGridView1_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e)
{
// If the column is the Artist column, check the
// value.
if (this.dataGridView1.Columns[e.ColumnIndex].Name == "Artist")
{
if (e.Value != null)
{
// Check for the string "pink" in the cell.
string stringValue = (string)e.Value;
stringValue = stringValue.ToLower();
if ((stringValue.IndexOf("pink") > -1))
{
e.CellStyle.BackColor = Color.Pink;
}
}
}
else if (this.dataGridView1.Columns[e.ColumnIndex].Name == "Release Date")
{
ShortFormDateFormat(e);
}
}
//Even though the date internaly stores the year as YYYY, using formatting, the
//UI can have the format in YY.
private static void ShortFormDateFormat(DataGridViewCellFormattingEventArgs formatting)
{
if (formatting.Value != null)
{
try
{
System.Text.StringBuilder dateString = new System.Text.StringBuilder();
DateTime theDate = DateTime.Parse(formatting.Value.ToString());
dateString.Append(theDate.Month);
dateString.Append("/");
dateString.Append(theDate.Day);
dateString.Append("/");
dateString.Append(theDate.Year.ToString().Substring(2));
formatting.Value = dateString.ToString();
formatting.FormattingApplied = true;
}
catch (FormatException)
{
// Set to false in case there are other handlers interested trying to
// format this DataGridViewCellFormattingEventArgs instance.
formatting.FormattingApplied = false;
}
}
}
Private Sub dataGridView1_CellFormatting(ByVal sender As Object, _
ByVal e As DataGridViewCellFormattingEventArgs) _
Handles dataGridView1.CellFormatting
' If the column is the Artist column, check the
' value.
If Me.dataGridView1.Columns(e.ColumnIndex).Name _
= "Artist" Then
If e.Value IsNot Nothing Then
' Check for the string "pink" in the cell.
Dim stringValue As String = _
CType(e.Value, String)
stringValue = stringValue.ToLower()
If ((stringValue.IndexOf("pink") > -1)) Then
e.CellStyle.BackColor = Color.Pink
End If
End If
ElseIf Me.dataGridView1.Columns(e.ColumnIndex).Name _
= "Release Date" Then
ShortFormDateFormat(e)
End If
End Sub
'Even though the date internaly stores the year as YYYY, using formatting, the
'UI can have the format in YY.
Private Shared Sub ShortFormDateFormat(ByVal formatting As DataGridViewCellFormattingEventArgs)
If formatting.Value IsNot Nothing Then
Try
Dim dateString As System.Text.StringBuilder = New System.Text.StringBuilder()
Dim theDate As Date = DateTime.Parse(formatting.Value.ToString())
dateString.Append(theDate.Month)
dateString.Append("/")
dateString.Append(theDate.Day)
dateString.Append("/")
dateString.Append(theDate.Year.ToString().Substring(2))
formatting.Value = dateString.ToString()
formatting.FormattingApplied = True
Catch notInDateFormat As FormatException
' Set to false in case there are other handlers interested trying to
' format this DataGridViewCellFormattingEventArgs instance.
formatting.FormattingApplied = False
End Try
End If
End Sub
Keterangan
Parameter desiredType
mewakili jenis tempat value
parameter harus dikonversi, dan desiredType
ditetapkan properti sel FormattedValueType . Misalnya, jika sel memformat nama gambar sebagai bitmap, value
adalah String sel yang berisi nama gambar, dan desiredType
merupakan Type tipe yang Bitmap mewakili.
Jika penanganan CellFormatting aktivitas tidak mengatur Value properti ke tipe yang dapat ditampilkan oleh sel, konten sel akan diformat menggunakan Formatproperti , NullValue, dan FormatProvider .
Berlaku untuk
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