JavaFX 8 - 如何将 TextField 文本属性绑定到 TableView 整数属性
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JavaFX 8 - How to bind TextField text property to TableView integer property
提问by Branislav Lazic
Let's say I have a situation like this: I have a TableView(tableAuthors) with two TableColumns(Id and Name).
假设我有这样的情况：我有一个TableView(tableAuthors) 有两个TableColumns（Id 和 Name）。
This is the AuthorProps POJO which is used by TableView:
这是 AuthorProps POJO，由TableView以下人员使用：
import javafx.beans.property.SimpleIntegerProperty;
import javafx.beans.property.SimpleStringProperty;
public class AuthorProps {
private final SimpleIntegerProperty authorsId;
private final SimpleStringProperty authorsName;
public AuthorProps(int authorsId, String authorsName) {
this.authorsId = new SimpleIntegerProperty(authorsId);
this.authorsName = new SimpleStringProperty( authorsName);
}
public int getAuthorsId() {
return authorsId.get();
}
public SimpleIntegerProperty authorsIdProperty() {
return authorsId;
}
public void setAuthorsId(int authorsId) {
this.authorsId.set(authorsId);
}
public String getAuthorsName() {
return authorsName.get();
}
public SimpleStringProperty authorsNameProperty() {
return authorsName;
}
public void setAuthorsName(String authorsName) {
this.authorsName.set(authorsName);
}
}
And let's say I have two TextFields(txtId and txtName). Now, I would like to bind values from table cells to TextFields.
假设我有两个TextFields（txtId 和 txtName）。现在，我想将表格单元格中的值绑定到TextFields.
tableAuthors.getSelectionModel()
.selectedItemProperty()
.addListener((observableValue, authorProps, authorProps2) -> {
//This works:
txtName.textProperty().bindBidirectional(authorProps2.authorsNameProperty());
//This doesn't work:
txtId.textProperty().bindBidirectional(authorProps2.authorsIdProperty());
});
I can bind Name TableColumnto txtName TextFieldbecause authorsNamePropertyis a SimpleStringProperty, but I can't bind Id TableColumnto txtId TextFieldbecause authorsIdPropertyis a SimpleIntegerProperty. My question is: How can I bind txtId to Id TableColumn?
我可以将 Name 绑定TableColumn到 txtNameTextField因为authorsNameProperty是 a SimpleStringProperty，但我不能将 Id 绑定TableColumn到 txtIdTextField因为authorsIdProperty是 a SimpleIntegerProperty。我的问题是：如何将 txtId 绑定到 Id TableColumn？
P.S. I can provide working example if it's necessary.
PS 如果有必要，我可以提供工作示例。
采纳答案by James_D
Try:
尝试：
txtId.textProperty().bindBidirectional(authorProps2.authorsIdProperty(), new NumberStringConverter());
