自定义的gxt单元格可能会采取小工具 [英] Custom gxt Cell which may take Widget

问题描述

我需要一个可以放置Widget的列。
我有这个：

  import com.google.gwt.cell.client.AbstractCell; 
 import com.google.gwt.safehtml.shared.SafeHtmlBuilder; 
 import com.google.gwt.user.client.ui.Widget; 
 
 public class WidgetGridCell extends AbstractCell< Widget> {
 
 Widget小部件; 
 
 public WidgetGridCell（Widget Widget）{
 this.widget = widget; 
} 
 
 @Override 
 public void render（Context paramContext，
 Widget param，SafeHtmlBuilder pb）{
 
} 
 } 
  

但我不知道如何在HTML中包含小部件

PS或者不是Widget，只有GWT Button才适合我。 解决方案

请参阅这里列举了许多AbstractCell实现的例子。

回答关于GWT按钮的问题：

  import com.google.gwt.cell.client.AbstractCell ; 
 import com.google.gwt.safehtml.shared.SafeHtmlBuilder; 
 import com.google.gwt.user.client.ui.Widget; 
 
 public class WidgetGridCell extends AbstractCell< Widget> {
 
 Widget小部件; 
 
 public WidgetGridCell（Widget Widget）{
 this.widget = widget; 
 
 $ b @Override 
 public void render（Context paramContext，
 Widget param，SafeHtmlBuilder pb）{
 Button aButton = new Button（）; 
 //将文本添加到按钮等等... 
 pb.append（SafeHtmlUtils.fromTrustedString（aButton.toString（）））; 
 
 
  

尝试这种做法基本上不可行（也不可取）并渲染一个单元格内的整个小部件，但它听起来好像你真的试图从单元内渲染一个按钮。

AbstractCell是Cell接口的实现，它允许您定义要在单元格内呈现的HTML。如果您需要一个可响应事件的按钮，您需要定义自定义单元格以处理浏览器事件（如单击事件）。 Google在自定义单元格的文档方面做得很好，解释了如何做到这一点。

请参阅此链接： http://www.gwtproject.org/doc/latest/DevGuideUiCustomCells.html

I need a Column in which it was possible to put a Widget. I have this:

import com.google.gwt.cell.client.AbstractCell;
import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
import com.google.gwt.user.client.ui.Widget;

public class WidgetGridCell extends AbstractCell<Widget> {

    Widget widget;

    public WidgetGridCell(Widget widget) {
        this.widget = widget;
    }

    @Override
    public void render(Context paramContext,
            Widget param, SafeHtmlBuilder pb) {

    }
}

But I do not know how to include the widget in HTML

P.S. Or not Widget, only GWT Button will suit me.

解决方案

See here for a number of examples of AbstractCell implementations.

To answer your question regarding a GWT button:

import com.google.gwt.cell.client.AbstractCell;
import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
import com.google.gwt.user.client.ui.Widget;

public class WidgetGridCell extends AbstractCell<Widget> {

  Widget widget;

  public WidgetGridCell(Widget widget) {
      this.widget = widget;
  }

  @Override
  public void render(Context paramContext,
          Widget param, SafeHtmlBuilder pb) {
    Button aButton = new Button();
    // add text to the button, etc...
    pb.append(SafeHtmlUtils.fromTrustedString(aButton.toString()));
  }
}

It's largely not feasible (and not advisable) to try and render an entire widget within a cell element but it sounds as though you are really trying to render a button from within the cell.

AbstractCell is an implementation of the Cell interface which allows you to define the HTML to render within the cell. If you need a button which can respond to events you'll need to define your custom cell to handle browser events (such as the click event). Google does a good job in their documentation on custom cells explaining how you can go about doing that.

See this link: http://www.gwtproject.org/doc/latest/DevGuideUiCustomCells.html

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