[英]JavaFX: How to get number of rows of table view that are showing in virtual flow
我想獲取表視圖的當前虛擬流的行數例如,我有一個1000行的表視圖,而表視圖每頁僅顯示50行,如果表視圖響應,如何獲取此“ 50”?可以調整大小。
總結,我想讓我的表格視圖行正確顯示,沒有一行顯示其中一半被隱藏而另一行可見
請幫助我,並在此先感謝
這是一個問題的例子:
package application;
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.TextField;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.Region;
import javafx.stage.Stage;
public class Main extends Application {
@Override
public void start(Stage primaryStage) {
try {
//This is table view that will view model information
TableView<Person> table = new TableView<>();
//First name column to view first name attribute of person model
TableColumn<Person, String> firstName = new TableColumn<>("First Name");
firstName.setCellValueFactory(new PropertyValueFactory<>("firstName"));
//Last name column to view first name attribute of person model
TableColumn<Person, String> lastName = new TableColumn<>("Last Name");
lastName.setCellValueFactory(new PropertyValueFactory<>("lastName"));
//Add this columns to table view
table.getColumns().add(firstName);
table.getColumns().add(lastName);
//Set dummy list of person to table view
for (int i = 0; i < 1000; i++) {
table.getItems().add(new Person("First Name" + i, "Last Name" + i));
}
//create TextField and bind what i want to its text property
//And what i want is : Number of rows that show on table virtual flow, by other words
//that number of rows that is visible to me now according to table height
TextField box = new TextField();
// ?????????????????
// ?????????????????
//Add table and box to border pane
BorderPane root = new BorderPane();
root.setCenter(table);
root.setBottom(box);
Scene scene = new Scene(root, 400, 400);
primaryStage.setScene(scene);
primaryStage.show();
} catch(Exception e) {
e.printStackTrace();
}
}
//This is model class
public class Person{
private String firstName;
private String lastName;
public Person(String firstName, String lastName) {
super();
this.firstName = firstName;
this.lastName = lastName;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
}
public static void main(String[] args) {
launch(args);
}
}
要獲取當前的可見行數,可以包括以下內容並調用getNumberOfVisibleRows():
private int getNumberOfVisibleRows()
{
VirtualFlow<?> vf = loadVirtualFlow();
return vf.getLastVisibleCell().getIndex() - vf.getFirstVisibleCell().getIndex();
}
private VirtualFlow<?> loadVirtualFlow()
{
return (VirtualFlow<?>) ( (TableViewSkin<?>) table.getSkin() ).getChildren().get( 1 );
}
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