Ultrawebgrid binding multiple times.

Every row command event first it is hitting the data base and then it is calling the row command.

this is my template column.

<igtbl:TemplatedColumn AllowGroupBy="No" BaseColumnName="PKCustomerId" Key="Edit"
              IsBound="true" SortIndicator="Disabled" Width="2%">
              <CellTemplate>
                <asp:ImageButton ID="ibtnView" runat="server" ToolTip="Edit" ImageUrl="../images/grid_edit.png"
                  CommandName="view" />
              </CellTemplate>
            </igtbl:TemplatedColumn>

Here my page

In aspx page:

<igmisc:WebAsyncRefreshPanel ID="WebAsyncRefreshPanel1" runat="server" Width="100%"
    TriggerPostBackIDs="wgCustomer_ctl00_btnSearch">
    <asp:Localize ID="lblNoRecords" runat="server"></asp:Localize>
    <igtbl:UltraWebGrid ID="wgCustomer" runat="server" Browser="xml" DisplayLayout-ScrollBar="Auto"
      Width="100%" DataSourceID="odsCustomer">
      <DisplayLayout CompactRendering="False" AllowColSizingDefault="Free" AllowDeleteDefault="Yes"
        AllowSortingDefault="Yes" AllowUpdateDefault="Yes" BorderCollapseDefault="Separate"
        HeaderClickActionDefault="SortMulti" Name="wgCustomer" RowHeightDefault="20px"
        RowSelectorsDefault="No" SelectTypeRowDefault="Single" SelectTypeCellDefault="Extended"
        Version="4.00" ViewType="OutlookGroupBy" AllowColumnMovingDefault="OnClient" ScrollBarView="Horizontal"
        CellClickActionDefault="RowSelect" GridLinesDefault="None" HeaderTitleModeDefault="OnOverflow"
        TabDirection="BottomToTop" StationaryMargins="header">
        <ActivationObject BorderWidth="" BorderColor="">
        </ActivationObject>
        <RowExpAreaStyleDefault BackColor="White">
        </RowExpAreaStyleDefault>
        <FooterStyleDefault BorderWidth="0px" BorderStyle="Solid" BackColor="LightGray">
          <BorderDetails ColorLeft="White" WidthTop="0px" WidthLeft="0px" ColorTop="White">
          </BorderDetails>
        </FooterStyleDefault>
        <RowStyleDefault BorderColor="Gray" Font-Size="8pt" Font-Names="Verdana" BorderWidth="1px"
          BorderStyle="Solid">
          <Padding Right="4px" Left="4px"></Padding>
          <BorderDetails WidthTop="0px" WidthLeft="0px" ColorBottom="White" ColorRight="White">
          </BorderDetails>
        </RowStyleDefault>
        <GroupByBox BoxStyle-BackColor="#FFFFC0" BoxStyle-HorizontalAlign="Center" BoxStyle-Height="10px">
        </GroupByBox>
        <RowSelectorStyleDefault BackColor="Gainsboro">
        </RowSelectorStyleDefault>
        <SelectedRowStyleDefault BackColor="LightGoldenrodYellow" ForeColor="Black" HorizontalAlign="Left"
          VerticalAlign="Middle">
        </SelectedRowStyleDefault>
        <HeaderStyleDefault CssClass="darkcolor">
          <BorderDetails ColorLeft="White" ColorRight="White" ColorTop="White"></BorderDetails>
        </HeaderStyleDefault>
        <EditCellStyleDefault BorderWidth="0px" BorderStyle="None">
        </EditCellStyleDefault>
        <FrameStyle Font-Size="8pt" Font-Names="Verdana" Width="100%">
        </FrameStyle>
        <Pager Alignment="Left" AllowPaging="True">
        </Pager>
        <AddNewBox>
          <BoxStyle BorderWidth="1px" BorderStyle="Solid" BackColor="LightGray" />
        </AddNewBox>
      </DisplayLayout>
      <Bands>
        <igtbl:UltraGridBand CellPadding="1" CellSpacing="1" Key="PKCustomerId" BaseTableName="Table"
          CellClickAction="RowSelect" Expandable="Yes" AllowUpdate="RowTemplateOnly" DataKeyField="PKCustomerId">
          <AddNewRow View="NotSet" Visible="NotSet">
          </AddNewRow>
          <Columns>

          /* here some of mycolums*/

          </Columns>
        </igtbl:UltraGridBand>
      </Bands>
    </igtbl:UltraWebGrid>

</igmisc:WebAsyncRefreshPanel>

In vbpage:

pageload event

wgCustomer.DataSourceID = "odsCustomer"
      wgCustomer.DataBind()

Please any one help me with this problem. I have tried lot but I could't found solutins.