如何动态更改jtable单元格背景 [英] How to change jtable cell Background Dynamically

问题描述

我有一个5行5列的 JTable table1 ，我想当我调用

I am having a JTable table1 with 5 rows and 5 columns, and I would like to change the background color of 3rd column/cell of 2nd row, when I call a function like

changeBgColor(row，col);

changeBgColor(row,col);

这可能吗?

推荐答案

覆盖 示例:

public Component prepareRenderer (TableCellRenderer renderer, int rowIndex, int columnIndex){  
    Component componenet = super.prepareRenderer(renderer, rowIndex, columnIndex);  

    if(rowIndex % 2 == 0) {  
       componenet.setBackground(Color.RED);  
    } else {
       componenet.setBackground(Color.GREEN);
    }
    return componenet;
} 

在这里，我将偶数位置的所有行都着色为 RED ，将奇数位置的所有行都着色为 GREEN .

Here I am coloring all the rows at even positions as RED and all the rows at odd positions as GREEN.

就您的问题而言.使用相同的方法，只是使用约束条件，

As far as your problem is considered. Use the same approach just use a constraint stating,

if(rowIndex == 2 && columnIndex == 3) {
   componenet.setBackground(Color.RED);
}

除上述单元格外，所有单元格都将使用默认颜色.

Other than the above stated cell all the cells will get the default color.

这篇关于如何动态更改jtable单元格背景的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！