How to generate 5 digit random numbers and save in Database using C# and VB.Net in ASP.Net

Hi kavithav,

Refer the below sample.

HTML

<div>
    <table>
        <tr>
            <td>
                <asp:TextBox ID="txtValue" runat="server" />
            </td>
        </tr>
        <tr>
            <td>
                <asp:Button ID="Button1" Text="Generate Random Number" runat="server" OnClick="GenerateRandomNumber" />
            </td>
        </tr>
        <tr>
            <td>
                <asp:Label ID="Label1" runat="server" />
            </td>
        </tr>
    </table>
</div>

Code

C#

protected void GenerateRandomNumber(object sender, EventArgs e)
{
    string number = "";
    Random random = new Random();
    if (!string.IsNullOrEmpty(txtValue.Text.Trim()))
    {
        for (int i = 0; i < Convert.ToInt32(txtValue.Text.Trim()); i++)
        {
            int n = random.Next(0, 100000);
            number += n.ToString("D5") + "<br/>";
        }
    }
    Label1.Text = number;
}

VB.Net

Protected Sub GenerateRandomNumber(sender As Object, e As EventArgs)
	Dim number As String = ""
	Dim random As New Random()
	If Not String.IsNullOrEmpty(txtValue.Text.Trim()) Then
		For i As Integer = 0 To Convert.ToInt32(txtValue.Text.Trim()) - 1
			Dim n As Integer = random.[Next](0, 100000)
			number += n.ToString("D5") + "<br/>"
		Next
	End If
	Label1.Text = number
End Sub

Screenshot