在文本框中显示数字时出现问题 [英] Problem to display numbers in textbox

问题描述

我想从网页获取文本框的值，并将数字值显示到文本框.所以我给以下

I want get the values of textboxes from webpage and displays the numeric values to textboxes. So i give following

txttot.Text=convert.Todouble(txtamt.Text)+convert.Todouble(txttax.Text)

但是错误是将隐式转换为String的两倍"
所以我给以下

But the error is "Conversion implicity double to String
So i give following

double tot;
tot=convert.Todouble(txtamt.Text)+convert.Todouble(txttax.Text)

txttot.Text=tot;

但这不起作用

请帮助我

But it is not working

Please help me

推荐答案

尝试一下:

Try this:

double a = double.Parse(txtamt.Text.ToString()) + double.Parse(txttax.Text.ToString());
           txttot.Text = a.ToString();

double tot;
tot=convert.Todouble(txtamt.Text)+convert.Todouble(txttax.Text)

txttot.Text=tot.Tostring();

注意代码段末尾的tostring()

Notice the tostring() in the very end of code segment

hi，
试试这个，

try this,

txttot.Text=convert.ToString(convert.Todouble(txtamt.Text)+convert.Todouble(txttax.Text));

希望这对你有用.

hope this works for u..

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