I have used the Ajax AsyncFileUpload.I have three field. 1.Name 2.Asynchronous File Upload 3.Description

4.Save buttton

when I click on Save new Record created.after creating new record when i enter all above details except select the Asynchronous File Upload.However when i click on Save button the Asynchronous File Upload contains the before Asynchronous upload File Name inspite of i didnt select the File from File Upload...How its possible getting confused..

My code is like this i have used master page.

<asp:Content ID="Content2" ContentPlaceHolderID="body" runat="server">
<script type="text/javascript" language="javascript">
    function UploadComplete() {
        document.getElementById('<%=lblmsg.ClientID %>').innerHTML = "Image Uploaded Successfully.";


    }
    function UploadError() {
        document.getElementById('<%=lblmsg.ClientID %>').innerHTML = "Image Upload Failed.";
    }
</script>

<table>
        <tr>
            <td colspan="2">
                <h1 style="color: #008000">
                    Add Project Details</h1>
            </td>
        </tr>
        <tr>
            <td align="left">
                <asp:Label ID="lblProjectName" runat="server" Text="Project Name" Font-Bold="true"></asp:Label>
            </td>
            <td align="left">
                <asp:TextBox ID="txtProjectName" runat="server" MaxLength="50" Width="150px" ValidationGroup="Save"></asp:TextBox>
                <asp:RequiredFieldValidator ID="rfvprojectname" runat="server" Text="Project Name is Required."
                    ErrorMessage="Project Name is Required." ControlToValidate="txtProjectName" ForeColor="Red"
                    ValidationGroup="Save"></asp:RequiredFieldValidator>
            </td>
        </tr>
        <tr>
            <td colspan="2">
            </td>
        </tr>
        <tr>
            <td align="left">
                <asp:Label ID="lblselectimage" runat="server" Text="Select Image" Font-Bold="true"></asp:Label>
            </td>
            <td align="left">
                <table>
                    <tr>
                        <td>
                            <cc1:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server">
                            </cc1:ToolkitScriptManager>
                            <cc1:AsyncFileUpload ID="AsyncFileUpload1"  runat="server"
                                OnClientUploadComplete="UploadComplete" OnClientUploadError="UploadError" CompleteBackColor="White"
                                Width="350px" UploaderStyle="Traditional" UploadingBackColor="#CCFFFF" ThrobberID="imgLoad"
                                OnUploadedComplete="fileuploadComplete" ClientIDMode="AutoID" EnableViewState="true"/>

                        </td>
                        <td>
                            <asp:Image ID="imgUpload" runat="server" Width="50px" Height="50px" />
                        </td>
                    </tr>
                </table>
            </td>
        </tr>
        <tr>
            <td>
            </td>
            <td>
                <asp:Image ID="imgLoad" runat="server" ImageUrl="~/Images/loading-gif-animation.gif"
                    Width="50px" Height="50px" />
                <asp:Label ID="lblmsg" runat="server" ForeColor="Blue" Font-Bold="true"></asp:Label>
            </td>
        </tr>
        <tr>
            <td align="left">
                <asp:Label ID="lblDescription" runat="server" Text="Description" Font-Bold="true"></asp:Label>
            </td>
            <td align="left">
                <asp:TextBox ID="txtDescription" runat="server" MaxLength="1000" Width="300" TextMode="MultiLine"
                    ValidationGroup="Save" Height="100px"></asp:TextBox>
                <asp:RequiredFieldValidator ID="RfvtxtDescription" runat="server" Text="Project Description is Required."
                    ErrorMessage="Project Description is Required." ControlToValidate="txtDescription"
                    ForeColor="Red" ValidationGroup="Save"></asp:RequiredFieldValidator>
            </td>
        </tr>
        <tr>
            <td>
            </td>
            <td align="left">
                <asp:ImageButton ID="btnsave" runat="server" ImageUrl="~/Images/Save.jpg" OnClick="btnSave_Click"
                    Height="37px" ValidationGroup="Save" />
            </td>
        </tr>
    </table>