文本框自动完成和默认按钮 [英] TextBox autocomplete and default buttons

问题描述

我有一个表单上自动完成功能的.NET文本框。该表格​​还的AcceptButton和CancelButton定义。如果我试图提交一个建议用回车键或关闭下拉Esc键，我的窗体关闭。
我怎样才能prevent这种行为？

I have a .NET TextBox with AutoComplete feature on the form. The form has also AcceptButton and CancelButton defined. If I try to commit a suggestion with Enter key or close drop down with Esc, my form closes. How can I prevent this behavior?

推荐答案

简单的方法就是当你在自动完成文本框删除的AcceptButton 和 CancelButton 属性：

Simple way is to remove AcceptButton and CancelButton properties while you are in auto-complete textbox:

    public Form1()
    {
        InitializeComponent();

        txtAuto.Enter +=txtAuto_Enter;
        txtAuto.Leave +=txtAuto_Leave;
    }

    private void txtAC_Enter(object sender, EventArgs e)
    {
        AcceptButton = null;
        CancelButton = null;
    }

    private void txtAC_Leave(object sender, EventArgs e)
    {
        AcceptButton = btnOk;
        CancelButton = btnCancel;
    }

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