CODEWITHSUNDEEP
javagwt
Catersa
Catersa

Reputation: 125

GWT Access grid element value

I have created a Grid using com.google.gwt.user.client.ui.Grid; : 

Grid g = new Grid (5,5);

I have added several elements to the grid through a sql query:

            g.setWidget(i, 0, texto(i, temp.get(1)));
        g.setWidget(i, 1, desplegable(temp.get(2)));
        g.setWidget(i, 2, texto(i, temp.get(3)));
        g.setWidget(i, 3, texto(i, temp.get(4).replace("%%", "")));
        g.setWidget(i, 4, gu);

"texto" and "desplegable" are both methods i have created to customize both a Textbox and a ListBox; both have a click event through which they can have their initial value changed / modified.

"gu" its a Button that i have created above the code above. "gu" has a click event which what it pretends to do is to get the values of the cell elements contained within the grid.

The following its an example:

ItemId        ItemName
-----------------------
01             Peak       [gu]
02             Paper      [gu]
03             Pick       [gu]

Now, when i click "gu", depending on which "gu" i click, i want to retrieve both values (itemid and itemname) from the grid. I know how to differenciate between which "gu" was clicked, but i dont know how to access the elements aligned to that "gu" button.

But until now i havent found how to do this.

Can anyone throw me some light on this?.

Thank you in advance for your time,

Kind regards,

Upvotes: 0

Views: 830

Answers (1)

David Levesque
David Levesque

Reputation: 22441

You could keep a reference to the row index of each button using a map, e.g.:

Map<Button, Integer> buttonRowMap = new HashMap<Button, Integer>();
...
g.setWidget(i, 4, gu);   // Your existing line
buttonRowMap.put(gu, i); // Keep a reference to the row index

Then in your ClickHandler you can retrieve the row index and the widgets on the same row:

public void onClick(ClickEvent event) {
    Button button = (Button) event.getSource();
    Integer rowIndex = buttonRowMap.get(button);
    TextBox tb = (TextBox) g.getWiget(rowIndex, 2);
    ...
}

Upvotes: 1

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