我想将天数添加到当前日期,例如我想输入数字的天数,而不是我选择我想在当前日期添加的日期是指天,周和月,但是当我选择天或周或者它显示日期,但无法在当前日期添加它们
任何人都可以帮助我
任何人都可以帮助我
protected void TextBoxPredictDays_TextChanged(object sender,EventArgs e)
{
string selectPredictDays = DropDownList1.SelectedItem.Value;
String Days1;
int Result;
Days1 = TextBoxPredictedClosing.ToString();
if (selectPredictDays == "Days")
{
Result = Convert.ToInt32(TextBoxPredictDays.Text) * 1;
TextBoxPredictedClosing.Text = Result.ToString();
}
else if (selectPredictDays == "Weeks")
{
Result = Convert.ToInt32(TextBoxPredictDays.Text) * 7;
TextBoxPredictedClosing.Text = Result.ToString();
}
else if (selectPredictDays == "Months")
{
Result = Convert.ToInt32(TextBoxPredictDays.Text) * 30;
TextBoxPredictedClosing.Text = Result.ToString();
}
}
这是我的设计代码
<asp:TextBox ID="TextBoxPredictDays" runat="server"
ontextchanged="TextBoxPredictDays_TextChanged" Width="101px" Height="14px" ></asp:TextBox>
<asp:DropDownList ID="DropDownList1" runat="server"
onselectedindexchanged="DropDownList1_SelectedindexChanged">
<asp:ListItem>Days</asp:ListItem>
<asp:ListItem>Weeks</asp:ListItem>
<asp:ListItem>Months</asp:ListItem>
</asp:DropDownList>
解决方法
DateTime.Now.AddDays(int) – 天数 DateTime.Now.AddDays(int * 7) – 持续数周 DateTime.Now.AddMonths(int) – 几个月