本文主要介绍了C#中将dateTimePicker初始值设置为空，具体如下：
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//窗体初始化事件private void Form1_Load(object sender, EventArgs e){ this.dateTimePicker1.Format = DateTimePickerFormat.Custom; this.dateTimePicker1.CustomFormat = " "; //" "引号中间必须有空格 //this.dateTimePicker1.Checked = false;}private void dateTimePicker1_ValueChanged(object sender, EventArgs e){ this.dateTimePicker1.Format = DateTimePickerFormat.Long; this.dateTimePicker1.CustomFormat = null;}//清空按钮事件private void button1_Click(object sender, EventArgs e){ this.dateTimePicker1.Format = DateTimePickerFormat.Custom; this.dateTimePicker1.CustomFormat = " "; this.dateTimePicker1.Checked = false;}//读取按钮事件private void button2_Click(object sender, EventArgs e){ if(dateTimePicker1.Text==" ") { this.textBox1.Text = "日期为空！"; } else { this.textBox1.Text = this.dateTimePicker1.Text; }} |
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原文链接：https://blog.csdn.net/qq_43335448/article/details/127053797
