添加新 attributeModifier 时如何删除先前的 attributeModifier？

发布于 2024-11-15 10:22:51 字数 273 浏览 0 评论 0原文

我有两列，它们是 orderbyborder 链接。当我单击一列时，我通过按以下方式添加 attributeModifier 更改了列的颜色

add(new AttributeModifier("style", true, new Model<String>("background-color:#80b6ed;")));

这工作正常。但是当我单击第二列时，第一列保持更改后的颜色。但我希望只有我单击的列才应包含此 attributeModifier！

原文

I have two columns which are orderbyborder links. When i click one column i changed the color of column by adding attributeModifier in the following way

add(new AttributeModifier("style", true, new Model<String>("background-color:#80b6ed;")));

This works fine. But when i click on second column, the first column remains the changed color. But I expect only the column which i click should hold this attributeModifier!

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半透明的墙 2024-11-22 10:22:51

您不应该更改修饰符。

诀窍是让你的模型返回正确的值。因此，您不必使用始终返回相同常量值的 new Model("background-color:#80b6ed;") ，而是使用以下内容：

new Model<String>() {
   @Override
   public String getObject() {
     if( columnName.equals( selectedColumn ) { //or something along these lines, to check if the current column is the selected one
        return "background-color:#80b6ed;";
     }
     return "background-color:white;";
   }
}

当然，这也意味着您可以在创建每一列时为其添加属性修饰符，并且以后不必担心它们。

You shouldn't change the modifier.

The trick is to have your model return the correct value. So instead of using new Model<String>("background-color:#80b6ed;"), which always returns the same constant value, you'd have something like:

new Model<String>() {
   @Override
   public String getObject() {
     if( columnName.equals( selectedColumn ) { //or something along these lines, to check if the current column is the selected one
        return "background-color:#80b6ed;";
     }
     return "background-color:white;";
   }
}

And of course this also means you can add an attribute modifier to every column when you create them and don't have to worry about them later on.

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