Vorrei poter inserire da codice Vb, un immagine in una header column della GridView, con allegata al Click una funzione javascript.

<div id="divGrid" class="grigliaA" style="height:178px; width:1400px;">
<asp:GridView ID="GridView2" runat="server" AutoGenerateColumns="False"
DataKeyNames="ID"
AllowSorting="True">
<RowStyle Height="10px" />
<Columns>

<asp:BoundField DataField="ID" HeaderText="ID" InsertVisible="True"
HeaderStyle-CssClass="HiddenColumn" ItemStyle-CssClass="HiddenColumn"
HtmlEncode="False" HtmlEncodeFormatString="False" >
<HeaderStyle CssClass="HiddenColumn" />
<ItemStyle CssClass="HiddenColumn" />
</asp:BoundField>


<asp:TemplateField HeaderImageUrl="">
<ItemTemplate>
<asp:ImageButton ID="btnSelect" runat="server" OnClick="btnSelect_Click" CausesValidation="true" ImageUrl="immagini/page_white_edit.png" />
</ItemTemplate>
</asp:TemplateField>

<asp:TemplateField HeaderImageUrl="">
<ItemTemplate>
<asp:ImageButton ID="btnDeleteRiga" runat="server" OnClick="btnDeleteRiga_Click" CausesValidation="true" ImageUrl="immagini/delete.png" TabIndex="1" />
</ItemTemplate>
</asp:TemplateField>

<asp:BoundField DataField="DataSolare" HeaderText="Data"
SortExpression="DataSolare" Visible="False" HtmlEncode="False"
HtmlEncodeFormatString="False" />
<asp:BoundField DataField="Importo" HeaderText="Importo"
SortExpression="Importo" Visible="False" HtmlEncode="False"
HtmlEncodeFormatString="False" />
</Columns>
</asp:GridView>

La colonna interessata è la DataSolare.