如何计算文本框中的百分比？ [英] how to calculate percentage in textbox?

问题描述

嗨朋友，

我想在我的项目中计算百分比。我写了这个代码它正在工作但输出值0只显示。

Hi Friend,
I want calculate percentage in my project.I wrote this code it is working but in output value 0 only displayed.

private void txtpresent_Leave(object sender, EventArgs e)
        {
            temp = (int.Parse(txtpresent.Text) / int.Parse(txtworkingdays.Text)*100);
            txtpercentage.Text = temp.ToString();
        }

temp在全球宣布。



请解决我的问题。

temp declared in global.

please solve my problem.

推荐答案

使用以下内容（假设文本框中包含非零数字）：

Use the following (assuming the textboxes have non zero numbers in them) :

temp = int.Parse(txtpresent.Text)*100 / int.Parse(txtworkingdays.Text);

您将两个值都转换为int然后除以



而不是你将数字换成浮点数，你会得到结果。



试试这个

You are converting both values to int and then dividing
so since int type does not return decimal value it is giving zero as output.

instead you convert the numbers to float, you will get the results.

try this

private void txtpresent_Leave(object sender, EventArgs e)
        {
            temp = (float.Parse(txtpresent.Text) / float.Parse(txtworkingdays.Text)*100);
            txtpercentage.Text = temp.ToString();
        }

private void txtpresent_Leave(object sender, EventArgs e)
        {
        decimal    temp = (Math.Round(Convert.ToDecimal(txtpresent.Text) / Convert.ToDecimal(txtworkingdays.Text)*100),0);
            txtpercentage.Text = temp.ToString();

        }

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