c# - 如何为 TreeListView 中的特定单元格文本赋予颜色

Question

我在 Windows 应用程序中使用 TreeListView，我添加了一些数据来查看，现在我想根据某些条件为单元格文本赋予颜色，请帮助我实现这一点。

这是我试图显示数据的示例代码。

    var parent1 = new Node("PARENT1", "-", "-" );
parent1.Children.Add(new Node("CHILD_1_1", "A", "X"));
parent1.Children.Add(new Node("CHILD_1_2", "A", "Y"));
parent1.Children.Add(new Node("CHILD_1_3", "A", "Z"));

    //here I need to give color for Third column value whose value is 'Y'

var parent2 = new Node("PARENT2", "-", "-" );
parent2.Children.Add(new Node("CHILD_2_1", "B", "W"));
parent2.Children.Add(new Node("CHILD_2_2", "B", "Z"));
parent2.Children.Add(new Node("CHILD_2_3", "B", "J"));

var parent3 = new Node("PARENT3", "-", "-");
parent3.Children.Add(new Node("CHILD_3_1", "C", "R"));
parent3.Children.Add(new Node("CHILD_3_2", "C", "T"));
data = new List<Node> { parent1, parent2, parent3 };
treeListView.Roots = data; 

Answer 1

要更改单个单元格的格式，您需要将 UseCellFormatEvents 设置为 true，然后侦听 FormatCell 事件。要仅以红色显示贷方余额，您可以执行以下操作：

private void olv1_FormatCell(object sender, FormatCellEventArgs e) {
    if (e.ColumnIndex == this.creditBalanceColumn.Index) {
        Customer customer = (Customer)e.Model;
        if (customer.Credit < 0)
            e.SubItem.ForeColor = Color.Red;
    }
}

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