根据下拉列表中的建议，增加“组合"框中的ListItem的字体大小

问题描述

我在Visual Studio中使用C#创建桌面应用程序时正在使用组合框，我将字体大小增加到"20".现在，当我运行该应用程序并单击下拉按钮时，列表元素的字体大小也增加了.

I am using Combo box while creating Desktop Application using C# in Visual Studio, I increased the font size to "20" now when I run the application and click the dropdown button list elements font-size also increased.

很好.但是，当我在组合框中写一些内容时，它会给出一些建议，如下图所示.

That's fine. But, when I write something in the combo box it gives suggestions as shown in the picture below.

我也想增加此建议列表的字体大小，因此我已经将"AutoCompleteMode"设置为属性设置为建议".有人可以帮我吗?

I, also want to increase the font size of this suggestion list, I have set "AutoCompleteMode" property set to "suggest". Is anybody can help me with this?

推荐答案

显示的自动完成文本的字体是固定的.没有相应的属性可以设置.

The font of the auto-complete text presented is fixed. There is no corresponding properties to set it.

一种解决方法是，您可以创建一个自定义控件，并用自定义列表框替换建议"下拉列表.

A workaround is that you can create a custom control and replace the suggest-drop-down with custom listbox.

public Form1()
{
    InitializeComponent();
    comboBox1.Size = new Size(120, 30);
    listBox.SelectedIndexChanged += ListBox_SelectedIndexChanged;
}

private void ListBox_SelectedIndexChanged(object sender, EventArgs e)
{
    comboBox1.Text = listBox.Text;
    listBox.Visible = false;
}

ListBox listBox = new ListBox();

// event triggered when the user enters text
private void comboBox1_TextUpdate(object sender, EventArgs e)
{
    // set the font of listbox to be consistent with combobox
    listBox.Font = comboBox1.Font;
    // add listbox below combobox
    listBox.Location = new Point(comboBox1.Location.X, comboBox1.Location.Y + comboBox1.Height);

    // filter suggest items
    listBox.Items.Clear();
    foreach (string item in comboBox1.Items)
    {
        if (item.StartsWith(comboBox1.Text) && comboBox1.Text != string.Empty)
        {
            listBox.Items.Add(item);
        }
    }

    listBox.Visible = listBox.Items.Count > 0;
    this.Controls.Add(listBox);
}

测试结果:

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