Show Hide Button on click of another using C# and VB.Net in ASP.Net

Hi micah

Refer below code.

HTML

<div class="form-group-inner">
    <div class="row">
        <div class="col-lg-3 col-md-3 col-sm-3 col-xs-12">
            <label class="login2 pull-right pull-right-pro">ID </label>
        </div>
        <div class="col-lg-9 col-md-9 col-sm-9 col-xs-12">
            <div class="input-group mg-b-pro-edt">
                <span class="input-group-addon"><i class="fa fa-sticky-note-o" aria-hidden="true"></i></span>
                <asp:TextBox ID="txtid" runat="server" CssClass="form-control" placeholder=" ID"></asp:TextBox>
            </div>
        </div>
    </div>
</div>
<div class="form-group-inner">
    <div class="row">
        <div class="col-lg-3 col-md-3 col-sm-3 col-xs-12">
            <label class="login2 pull-right pull-right-pro">Date</label>
        </div>
        <div class="col-lg-9 col-md-9 col-sm-9 col-xs-12">
            <div class="form-group data-custon-pick" id="data_1">
                <div class="input-group date">
                    <span class="input-group-addon"><i class="fa fa-calendar"></i></span>
                    <asp:TextBox ID="txtdate" runat="server" CssClass="form-control" placeholder="Collection Date- DD/MM/YY" type="text" ReadOnly="True"></asp:TextBox>
                </div>
            </div>
        </div>
    </div>
</div>
<div class="form-group-inner">
    <div class="row">
        <div class="col-lg-3 col-md-3 col-sm-3 col-xs-12">
            <label class="login2 pull-right pull-right-pro">Receipt </label>
        </div>
        <div class="col-lg-9 col-md-9 col-sm-9 col-xs-12">
            <div class="input-group mg-b-pro-edt">
                <span class="input-group-addon"><i class="fa fa-sticky-note-o" aria-hidden="true"></i></span>
                <asp:TextBox ID="txtcode2" runat="server" CssClass="form-control" placeholder=" Receipt" ReadOnly="True"></asp:TextBox>
            </div>
        </div>
    </div>
</div>
<div class="text-right">
    <asp:LinkButton ID="btnorder" runat="server" CssClass="btn btn-default" OnClick="btnorder_Click"> Submit Order</asp:LinkButton>
</div>
<div class="text-right">
    <asp:LinkButton ID="btnorder2" runat="server" CssClass="btn btn-default" OnClick="btnorder2_Click" Visible="false">Final Submit Order</asp:LinkButton>
</div>

Code

C#

protected void btnorder_Click(object sender, EventArgs e)
{
    // Insert code.
    int inserted = 0;
    using (SqlConnection con = new SqlConnection())
    {
        con.ConnectionString = str;
        using (SqlCommand cmd = new SqlCommand())
        {
            cmd.CommandType = CommandType.Text;
            cmd.Connection = con;
            //Change the query like below
            //Make sure the column name matches the with the name provided in code as per your table
            cmd.CommandText = "INSERT INTO ItemOrdered1 (ID,Date,Receipt) VALUES(@ID,@Date,@Receipt)";
            //  cmd.Parameters.AddWithValue("@UserName", HttpContext.Current.User.Identity.Name);

            cmd.Parameters.AddWithValue("@ID", txtid.Text.Trim());
            cmd.Parameters.AddWithValue("@Date", txtdate.Text.Trim);
            cmd.Parameters.AddWithValue("@Receipt", txtcode2.Text.Trim());
            con.Open();
            inserted = cmd.ExecuteNonQuery();
            con.Close();
            grandtotal();
            BindDatalist();
            string message = string.Empty;
            ScriptManager.RegisterClientScriptBlock(btnorder, this.GetType(), "alert", "<script>alert('Data Submitted Successfully ... !!')</script>", false);
        }
    }
    btnorder.Visible = false;
    btnorder2.Visible = true;
}
protected void btnorder2_Click(object sender, EventArgs e)
{
    // Insert code.
    btnorder.Visible = true;
    btnorder2.Visible = false;
}

VB.Net

    Protected Sub btnorder_Click(ByVal sender As Object, ByVal e As EventArgs)
        Dim inserted As Integer = 0
        Using con As SqlConnection = New SqlConnection()
            con.ConnectionString = str
            Using cmd As SqlCommand = New SqlCommand()
                cmd.CommandType = CommandType.Text
                cmd.Connection = con
                cmd.CommandText = "INSERT INTO ItemOrdered1 (ID,Date,Receipt) VALUES(@ID,@Date,@Receipt)"
                cmd.Parameters.AddWithValue("@ID", txtid.Text.Trim())
                cmd.Parameters.AddWithValue("@Date", txtdate.Text.Trim)
                cmd.Parameters.AddWithValue("@Receipt", txtcode2.Text.Trim())
                con.Open()
                inserted = cmd.ExecuteNonQuery()
                con.Close()
                grandtotal()
                BindDatalist()
                Dim message As String = String.Empty
                ScriptManager.RegisterClientScriptBlock(btnorder, Me.[GetType](), "alert", "<script>alert('Data Submitted Successfully ... !!')</script>", False)
            End Using
        End Using

        btnorder.Visible = False
        btnorder2.Visible = True
    End Sub

    Protected Sub btnorder2_Click(ByVal sender As Object, ByVal e As EventArgs)
        btnorder.Visible = True
        btnorder2.Visible = False
    End Sub