仅使用DropDown选择DateTimePicker [英] DateTimePicker selection only with DropDown

问题描述

我想在表单中使用DateTimePicker，但是我需要用户选择仅带DropDown的日期，并且我试图禁用DateTimePicker本身的选择(例如，通过按KeyUp/Down).

I want to use DateTimePicker in my Form, but I need user to select date only w/ DropDown and I'm trying to disable picking in DateTimePicker itself (e.g. by pressing KeyUp/Down).

//this.dtp_datum_pracVykaz.ValueChanged += new System.EventHandler(this.dtp_datum_pracVykaz_ValueChanged);
this.dtp_datum_pracVykaz.DropDown += dtp_datum_pracVykaz_DropDown;
this.dtp_datum_pracVykaz.CloseUp += dtp_datum_pracVykaz_CloseUp;

哪里

    void dtp_datum_pracVykaz_DropDown(object sender, System.EventArgs e)
    {
        this.dtp_datum_pracVykaz.ValueChanged += new System.EventHandler(this.dtp_datum_pracVykaz_ValueChanged);
    }

    void dtp_datum_pracVykaz_CloseUp(object sender, System.EventArgs e)
    {
        this.dtp_datum_pracVykaz.ValueChanged -= new System.EventHandler(this.dtp_datum_pracVykaz_ValueChanged);
    }

问题在于启用了DTP，因此用户可以更改日期而没有DropDown(但不会生效).我想要类似DTP.Enabled = False;的东西.但是必须启用DropDown的图标.

The problem is that DTP is enabled, so user can change date without DropDown (but it won't have effect). I want something like DTP.Enabled = False; but icon for DropDown must be enabled.

推荐答案

使用keydown事件-

Use the keydown event -

    private void dateTimePicker1_KeyDown(object sender, KeyEventArgs e)
    {
        e.SuppressKeyPress = true;
    }

通过这种方式，将忽略用户按下的任何键，从而有效地禁用用户键盘输入.

This way any key pressed by the user will be ignored effectively disabling user keyboard input.

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