加载表单时，日期时间选择器控件为空 [英] Datetime picker control to be blank when the form loads

问题描述

我的表单中有一个datetimepicker控件.除了一件事，它工作正常-
其默认值自动设置为今天的日期.我希望控件在窗体加载时为空白.
您能为我指出正确的方法吗?

谢谢您的时间.

Hi,

I have a datetimepicker control in my form. It works fine except for one thing-
Its default value is automatically set to today''s date. I want the control to be blank when the form loads.
Can you please point me in the right direction about how to do this?

Thanks for your time.

推荐答案

实际上，可以将DateTimePicker的Format设置为Custom并将自定义格式设置为空字符串(不是空，而是只是一个空格)

Actually it''s possible you can set Format of the DateTimePicker to Custom and set the custom format to a blank string (not empty but just one whitespace)

this.dateTimePicker1.Format = DateTimePickerFormat.Custom;
this.dateTimePicker1.CustomFormat = " "; //a string with one whitespace

这显示空白的日期时间.但是该值不会更改为null.您必须在代码中单独处理此问题

This shows a blank date time. But the value does not change to null. You have to handle this issue seperately in your code

希望这会有所帮助.

http://stackoverflow.com/questions/846395/how-can-i-make-a-datetimepicker-display-an-empty-string [

Hi,

Hope this helps.

http://stackoverflow.com/questions/846395/how-can-i-make-a-datetimepicker-display-an-empty-string[^]

<script type="text/javascript">

function clearText(){
document.getElementById('txtSampleDate.ClientID').value = "";
}

window.onload=clearText();

<asp:textbox id="txtSampleDate" runat="server" xmlns:asp="#unknown" />

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