根据数据库的值改变 JTable 行的颜色 [英] Change Color of JTable Row Based on the Value of the Database

问题描述

tblApplicant = new javax.swing.JTable(){
    public Component prepareRenderer(TableCellRenderer renderer, int row, int column)
    {
    Component c = super.prepareRenderer(renderer, row, column);

    //  Alternate row color
    String value = (String) tblApplicant.getValueAt(row, 4);
    if (value == "Single" && !isRowSelected(row))
    c.setBackground(Color.LIGHT_GRAY);

    return c;
}

};

这是我的新代码，我试图获取第 4 列的值，如果背景发生变化，则为单列值.但这不起作用

This is my New Codes im trying to get the value of column 4 and equal it to single if its true the background is change. but this is not working

推荐答案

重写 JTable 的 prepareRender(...) 方法允许您为基于其中一列中的值的整行.

Overriding the prepareRender(...) method of the JTable allows your to customize rendering for the entire row based on a value in one of the columns.

基本逻辑类似于:

public Component prepareRenderer(TableCellRenderer renderer, int row, int column)
{
    Component c = super.prepareRenderer(renderer, row, column);

    //  Color row based on a cell value

    if (!isRowSelected(row))
    {
        c.setBackground(getBackground()); // set default background

        int modelRow = convertRowIndexToModel(row);
        String value = (String)getModel().getValueAt(modelRow, ???);

        if ("Single".equals(value)) c.setBackground(Color.GREEN);
    }

    return c;
}

查看表格行渲染了解更多信息和工作示例.

Check out Table Row Rendering for more information and working examples.

这篇关于根据数据库的值改变 JTable 行的颜色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！