Solved: create click event on imane button in asp

dear all

i created an image buton programatically in asp net
below is the code:

  Dim m_htmltable As New HtmlTable
        Dim m_htmlRow As New HtmlTableRow
        Dim m_htmlcell As New HtmlTableCell
        m_htmltable.Rows.Add(m_htmlRow)
        m_htmlRow.Cells.Add(m_htmlcell)
        m_htmlcell.Attributes.Add("width", "auto")
        m_htmlcell.Attributes.Add("height", "22px")
        m_htmlcell.Attributes.Add("white-space", "nowrap")
        m_htmlcell.Attributes.Add("class", "textBoxStyle_NoBorder")
        m_htmlcell.Attributes.Add("text-align", "center")
        m_htmlcell.BgColor = "#ECF5FF"

        Dim createDiv As New System.Web.UI.HtmlControls.HtmlGenericControl("DIV") 'create div element with the below styles:Style = "display: inline-block ; white-space: nowrap;"
        createDiv.ID = "createDiv"
        createDiv.Style("display") = "inline-block"
        createDiv.Style("white-space") = "nowrap"
        Dim img As New ImageButton()
        img.ImageUrl = "../../Images/NewIcons/deleteline_Dis_Icon.png"
        img.CommandName = "image_clicked"
        img.CommandArgument = m_htmlcell & ";" & FileNat & ";" & FileNumber & ";" & FileName
        img.Width = "15"
        img.Height = "15"
        img.Attributes("display") = "inline"
        img.Attributes("vertical-align") = "middle"
        img.Attributes("cursor") = "pointer"
        img.Attributes("vertical-align") = "middle"
        AddHandler img.Command, AddressOf img_Click
        Dim CellNbre As String = m_htmlRow.Cells.Count
        Dim File_Link As New HyperLink
        File_Link.Target = "_blank"
        File_Link.ForeColor = System.Drawing.Color.Black
        File_Link.Text = FileName.Replace(" ", "")
        File_Link.NavigateUrl = FileLink

        m_htmlcell.Controls.Add(img) '// append DIV to the table cell
        m_htmlcell.Controls.Add(File_Link)
        createDiv.Controls.Add(m_htmltable)
 Protected Sub img_Click(ByVal sender As Object, ByVal e As CommandEventArgs)
       m_htmlcell.Style("display") = "none"

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i need on image click to hide the the cell where the image is created
how to do that ?