Introduction: In this article i have explained how to get/find/calculate factorial of a number in asp.net.
VB.Net Code to get/find/calculate factorial of a number using C# and VB.net
- In the design page(.aspx) place two text boxes and a button as:
<table>
<tr>
<td>
Enter number</td>
<td>
<asp:TextBox ID="txtNumber" runat="server"></asp:TextBox>
</td>
</tr>
<tr>
<td>
</td>
<td>
<asp:Button ID="btnFactorial" runat="server" Text="Calculate factorial"
onclick="btnFactorial_Click"
/>
</td>
<tr>
<td>
Output:</td>
<td>
<asp:TextBox ID="txtFactorial" runat="server"></asp:TextBox>
</td>
</tr>
</table>
- Now in the code behind
file(.aspx.cs) write the code as:
C#.Net Code to get/find/calculate factorial of a number using C# and VB.net
protected void
btnFactorial_Click(object sender, EventArgs e)
{
int count = 1, factorial = 1, number = 1,
factorialNumber;
factorialNumber = Convert.ToInt32(txtNumber.Text);
while (count <= factorialNumber)
{
factorial = factorial * number;
count++;
number++;
}
txtFactorial.Text = factorial.ToString();
}
VB.Net Code to get/find/calculate factorial of a number using C# and VB.net
- Now in the code behind file(.aspx.vb) write the code as:
Dim count As Integer = 1, factorial As
Integer = 1, number As
Integer = 1, factorialNumber As Integer
factorialNumber = Convert.ToInt32(txtNumber.Text)
While count <= factorialNumber
factorial = factorial * number
count += 1
number += 1
End While
txtFactorial.Text = factorial.ToString()
End Sub
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