将两个文本框相乘并将结果放置在标签中 [英] multiplying tow textboxes and place the result ina label
本文介绍了将两个文本框相乘并将结果放置在标签中的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
当我在页面中输入值时，我有两个文本框，结果应显示在同一页面中.
i have tow text boxes when i entered the values in the page the result should be displayed in the same page
推荐答案
double num1, num2;
private void button1_Click(object sender, EventArgs e)
{
num1 = Convert.ToDouble(textBox1.Text);
num2 = Convert.ToDouble(textBox2.Text);
label1.Text = Convert.ToString(num1 * num2);
}
朋友，在单击按钮事件时，将两个文本框(如TextBox1.Text)的值都转换为double/int数据类型，将文本框值和将标签上的值分配为" Label1.Text =(Convert.ToInt(TextBox1.Text)* Convert.ToInt(TextBox2.Text)).ToString(); "
谢谢，
Ambesha
Friend, on button click event, take the value of both text box like TextBox1.Text and convert them into double/int data type, multiply both the textbox values and assign the value on label as "Label1.Text =(Convert.ToInt(TextBox1.Text)*Convert.ToInt(TextBox2.Text)).ToString();"
Thanks,
Ambesha
<body>
<form id="form1" runat="server">
<div>
<asp:label id="lblNumber1" runat="server" text="Enter first value:" xmlns:asp="#unknown"></asp:label>
<asp:textbox id="txtNumber1" runat="server" xmlns:asp="#unknown"></asp:textbox>
<br />
<asp:label id="lblNumber2" runat="server" text="Enter second value:" xmlns:asp="#unknown"></asp:label>
<asp:textbox id="txtNumber2" runat="server" xmlns:asp="#unknown"></asp:textbox>
<br />
<asp:button id="btnMultiplication" runat="server" text="Multiplication" onclick="OnBtnMultiplicationClick" xmlns:asp="#unknown"></asp:button>
<br /><asp:label id="lblMultiplication" runat="server" xmlns:asp="#unknown"></asp:label>
</div>
</form>
</body>
现在在(test.aspx.cs)后面的代码中:
----------------------------------
Now on code behind (test.aspx.cs):
----------------------------------
protected void OnBtnMultiplicationClick(object sender, EventArgs e)
{
int num1=Convert.ToInt32(txtNumber1.Text);
int num2 = Convert.ToInt32(txtNumber2.Text);
lblMultiplication.Text = (num1 * num2).ToString();
}
**Validation is not done so check for Null or empty value.
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