DataGridTableStyle::ColumnHeadersVisibleChanged Event
.NET Framework (current version)
Occurs when the ColumnHeadersVisible value changes.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
To set the caption text for each column in a grid, set the HeaderText property of the DataGridColumnStyle class.
For more information about handling events, see Handling and Raising Events.
The following code example demonstrates the use of this member.
private: void DataGridTableStyle_Sample_Load( Object^ /*sender*/, EventArgs^ /*e*/ ) { myDataGridTableStyle1 = gcnew DataGridTableStyle; myHeaderLabel->Text = String::Concat( "Header Status : ", myDataGridTableStyle1->ColumnHeadersVisible ); if ( myDataGridTableStyle1->ColumnHeadersVisible == true ) { btnheader->Text = "Remove Header"; } else { btnheader->Text = "Add Header"; } AddCustomDataTableStyle(); } void AddCustomDataTableStyle() { myDataGridTableStyle1->ColumnHeadersVisibleChanged += gcnew System::EventHandler( this, &DataGridTableStyle_Sample::ColumnHeadersVisibleChanged_Handler ); // Set ColumnheaderVisible property. myDataGridTableStyle1->MappingName = "Customers"; // Add a GridColumnStyle and set its MappingName DataGridColumnStyle^ myBoolCol = gcnew DataGridBoolColumn; myBoolCol->MappingName = "Current"; myBoolCol->HeaderText = "IsCurrent Customer"; myBoolCol->Width = 150; myDataGridTableStyle1->GridColumnStyles->Add( myBoolCol ); // Add a second column style. DataGridColumnStyle^ myTextCol = gcnew DataGridTextBoxColumn; myTextCol->MappingName = "custName"; myTextCol->HeaderText = "Customer Name"; myTextCol->Width = 250; myDataGridTableStyle1->GridColumnStyles->Add( myTextCol ); // Create new ColumnStyle objects DataGridColumnStyle^ cOrderDate = gcnew DataGridTextBoxColumn; cOrderDate->MappingName = "OrderDate"; cOrderDate->HeaderText = "Order Date"; cOrderDate->Width = 100; // PropertyDescriptor to create a formatted column. PropertyDescriptorCollection^ myPropertyDescriptorCollection = this->BindingContext[myDataSet, "Customers::custToOrders"]->GetItemProperties(); // Create a formatted column using a PropertyDescriptor. DataGridColumnStyle^ csOrderAmount = gcnew DataGridTextBoxColumn( myPropertyDescriptorCollection[ "OrderAmount" ],"c",true ); csOrderAmount->MappingName = "OrderAmount"; csOrderAmount->HeaderText = "Total"; csOrderAmount->Width = 100; // Add the DataGridTableStyle instances to GridTableStylesCollection. myDataGrid->TableStyles->Add( myDataGridTableStyle1 ); } void ColumnHeadersVisibleChanged_Handler( Object^ /*sender*/, EventArgs^ /*e*/ ) { myHeaderLabel->Text = String::Concat( "Header Status : ", myDataGridTableStyle1->ColumnHeadersVisible ); } void btnheader_Click( Object^ /*sender*/, EventArgs^ /*e*/ ) { if ( myDataGridTableStyle1->ColumnHeadersVisible == true ) { myDataGridTableStyle1->ColumnHeadersVisible = false; btnheader->Text = "Add Header"; } else { myDataGridTableStyle1->ColumnHeadersVisible = true; btnheader->Text = "Remove Header"; } }
.NET Framework
Available since 1.1
Available since 1.1
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