从asp.net的文本框中乘以两个值 [英] multiply two values from textbox in asp.net

问题描述

HI ..

如何将文本框中的两个值相乘并将结果放入c#中的另一个文本框中...

这是我的代码，但出现错误，无法将类型"int"隐式转换为"strint" ........

HI..

How to multiply two values from textbox and put the result in another textbox in c#...

Here is my code but it getting error, Cannot implicitly convert type ''int'' to ''strint''.......

protected void txtqty_TextChanged(object sender, EventArgs e)
   {
       if (txtrate.Text != "")
       {
           txttamt.Text = ((Convert.ToInt32(txtrate.Text.Trim())) * (Convert.ToInt32(txtqty.Text.Trim())));
       }
   }

在SQL中，我将值数据类型存储为整数.......

In SQL i stored the values datatype as integer.......

推荐答案

请更改为
txttamt.Text =(((Convert.ToInt32(txtrate.Text.Trim()))*(Convert.ToInt32(txtqty.Text.Trim()))).ToString();

Hi,
Pls change as
txttamt.Text = ((Convert.ToInt32(txtrate.Text.Trim())) * (Convert.ToInt32(txtqty.Text.Trim()))).ToString();

使用以下代码:-

use below code:-

protected void txtqty_TextChanged(object sender, EventArgs e)
   {
       if (txtrate.Text != "")
       {
           txttamt.Text =Convert.tostring( ((Convert.ToInt32(txtrate.Text.Trim())) * (Convert.ToInt32(txtqty.Text.Trim()))));
       }
   }

尝试一下:

Try this one :

protected void txtqty_TextChanged(object sender, EventArgs e)
   {
       if (txtrate.Text != "")
       {
           txttamt.Text = (((Convert.ToInt32(txtrate.Text.Trim())) * (Convert.ToInt32(txtqty.Text.Trim())))).tostring();
       }
   }

我在这里所做的是，我在开头添加了一个括号，在末尾添加了一个括号，然后将整个语句转换为字符串.因此，您的错误是将整数放置在接受字符串的txttamt中.

What i did here is that i added a bracket at the beginning and another one at the end then converted the whole statement to string.So your error is that you are placing integers in txttamt which accepts strings.

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