about inital value

[Ozge]

I need a numerictextbox whose initial value seems '0' but when first up/down button hit, the real initial value will come.
Is it possible to do that?
I try the code below but on spin event when e.sender._value is set to firstPrice, change event is called and i can see that e.sender._old value is still the unchanged value.

$("#txtPrice").kendoNumericTextBox({

                decimals: 5,

                step: 0.00001,

                format: '#.00000',

                min: 0

            });

var firstPrice = 0.89889;

var numeric = $("#txtPrice").data("kendoNumericTextBox");

            numeric.bind("change", function (e) {

                if (e.sender._old == 0)

                    e.sender._value = firstPrice;

            });

            numeric.bind("spin", function(e) {

                if (e.sender._old == 0)

                    e.sender._value = firstPrice;

            });

 

 

<asp:TextBox ID="txtPrice" runat="server" ClientIDMode="Static" Text="0"></asp:TextBox>