如何计算两个文本框的值 [英] how to calculate two textboxes values

问题描述

hi
我有3个文本框txtamont.text，txtTotalAmount.text和txtDue.text Simultaneouly.当我在txtamont.text中输入10000且Totla金额为15000时，如何在txtDue.text中自动显示到期金额，请告诉我任何人plz

hi
I have 3 textboxes txtamont.text , txtTotalAmount.text and txtDue.text Simultaneouly .When i have enter in txtamont.text 10000 and Totla amount is 15000 then in how to display Due amount in txtDue.text automatically remaining amount please tell me anyone plz

推荐答案

您可以使用TextChanged事件进行计算，检查 txtamont.text 和 txtTotalAmount.text 不是空白，然后将其解析为数字
然后设置

Hi,

You can use TextChanged event to calculate, check txtamont.text and txtTotalAmount.text are not blank and parse them they are numeric
then Set

txtDue.Text =Convert.ToDecimal(txtTotalAmount.Text) -Convert.ToDecimal(txtamont.Text)

否则，您可以创建一个类CalDueAmt，在其中公开两个属性


在Text Chnage上，只需设置TotalAmt和Amt即可获取计算值

or else you can create a class CalDueAmt where you expose two property


On Text Chnage just Set TotalAmt and Amt get calculated value

class CalDueAmt
{
private decimal _TotalAmt;
public decimal TotalAmt { get { return _TotalAmt;}
                          set { _TotalAmt=value; Calculate();}

private decimal _Amt;
public decimal Amt { get { return _Amt;}
                          set { _Amt=value; Calculate();}

private void Calculate()
{
txtDue.Text=_TotalAmt-_Amt;
}
}

您应该将其用作That的嵌套类，在第二个文本框的文本更改事件中，该类需要进行计算.

you should use this as a nested class of That from where calculation required .

写计算.



txtDue.Text = Convert.ToDecimal(txtTotalAmount.Text)-Convert.ToDecimal(txtamont.Text)

in the text changed event of the second text box. write the calculation.



txtDue.Text =Convert.ToDecimal(txtTotalAmount.Text) -Convert.ToDecimal(txtamont.Text)

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