输入“1”的C＃代码价值并将其更改为迄今 [英] C# code to enter "1" value and change it to date

问题描述

亲爱的所有人，我真的需要帮助我的问题我想将文本框输入的值更改为确切的月份，例如：



TextBox.Text =1 ，当输入时应将DateTimePicker更改为=01/01/2018。

其他月份

TextBox.Text =2，输入时应更改DateTimePicker to =01/02/2018。



直到

TextBox.Text =12，输入此内容时应将DateTimePicker更改为=01/12/2018。



我的尝试：

亲爱的所有人，我真的需要帮助我的问题我想将文本框输入的值更改为确切的月份，例如：
 
 TextBox.Text =1，当输入此内容应将DateTimePicker更改为=01/01/2018。其他月份的
 
 TextBox.Text =2，输入时应将DateTimePicker更改为01/02/2018。 
 
直到
 TextBox.Text =12，输入时应将DateTimePicker更改为=01/12/2018。

 private void myTextBox_TextChanged（object sender，EventArgs e）
 {
 int month; 
 if（int.TryParse（myTextBox.Text，out month））
 {
 DateTime dt = myDateTimePicker.Value; 
 myDateTimePicker.Value = dt.AddMonths（month  -  dt.Month）; 
} 
} 
 

Dear All, I really need help with my problem I want to Change textbox entered value to the exact month for example:

TextBox.Text = "1", when enter this should change DateTimePicker to ="01/01/2018".
for other months
TextBox.Text = "2", when enter this should change DateTimePicker to ="01/02/2018".

until
TextBox.Text = "12", when enter this should change DateTimePicker to ="01/12/2018".

What I have tried:

Dear All, I really need help with my problem I want to Change textbox entered value to the exact month for example:

TextBox.Text = "1", when enter this should change DateTimePicker to ="01/01/2018".
for other months
TextBox.Text = "2", when enter this should change DateTimePicker to ="01/02/2018".

until
TextBox.Text = "12", when enter this should change DateTimePicker to ="01/12/2018".

解决方案

Try this:

private void myTextBox_TextChanged(object sender, EventArgs e)
    {
    int month;
    if (int.TryParse(myTextBox.Text, out month))
        {
        DateTime dt = myDateTimePicker.Value;
        myDateTimePicker.Value = dt.AddMonths(month - dt.Month);
        }
    }

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