Hi, I have the following aspx code:

<eo:Grid ID="gridCP" runat="server" BorderColor="#7F9DB9" BorderWidth="1px" ColumnHeaderAscImage="00050104" ColumnHeaderDescImage="00050105" ColumnHeaderDividerImage="00050103" FixedColumnCount="1" Font-Bold="False" Font-Italic="False" Font-Names="Tahoma" Font-Overline="False" Font-Size="8.75pt" Font-Strikeout="False" Font-Underline="False" GoToBoxVisible="True" GridLineColor="220, 223, 228" GridLines="Both" Height="200px" Width="444px" EnableTheming="True">
<FooterStyle CssText="padding-bottom:4px;padding-left:4px;padding-right:4px;padding-top:4px;" />
<ItemStyles>
<eo:GridItemStyleSet>
<ItemStyle CssText="background-color: white" />
<ItemHoverStyle CssText="background-color: whitesmoke" />
<SelectedStyle CssText="background-color: #316ac5; color: white" />
<FixedColumnCellStyle CssText="border-right: #d6d2c2 1px solid; padding-right: 10px; border-top: #faf9f4 1px solid; border-left: #faf9f4 1px solid; border-bottom: #d6d2c2 1px solid; background-color: #ebeadb; text-align: right; color: black;" />
<CellStyle CssText="padding-left:8px;padding-top:2px;white-space:nowrap;" />
</eo:GridItemStyleSet>
</ItemStyles>
<ContentPaneStyle CssText="border-bottom-color:#7f9db9;border-bottom-style:solid;border-bottom-width:1px;border-left-color:#7f9db9;border-left-style:solid;border-left-width:1px;border-right-color:#7f9db9;border-right-style:solid;border-right-width:1px;border-top-color:#7f9db9;border-top-style:solid;border-top-width:1px;" />
<GoToBoxStyle CssText="BORDER-RIGHT: #7f9db9 1px solid; BORDER-TOP: #7f9db9 1px solid; BORDER-LEFT: #7f9db9 1px solid; WIDTH: 40px; BORDER-BOTTOM: #7f9db9 1px solid" />
<Columns>
<eo:RowNumberColumn Width="50">
</eo:RowNumberColumn>
<eo:MaskedEditColumn DataField="strCodigoPostal" HeaderText="C&#243;digo Postal" Name="">
<MaskedEdit ControlSkinID="None" runat="server">
<eo:MaskedEditSegment IsRequired="True" Mask="00000" SegmentType="Mask" />
</MaskedEdit>
</eo:MaskedEditColumn>
<eo:MaskedEditColumn DataField="numCantidad" HeaderText="Cantidad" Width="90">
<MaskedEdit ControlSkinID="None" runat="server">
<eo:MaskedEditSegment IsRequired="True" MaxValue="99999" SegmentType="Number" />
</MaskedEdit>
</eo:MaskedEditColumn>
<eo:MaskedEditColumn DataField="numDisponibles" HeaderText="Disponibles" Width="90">
<MaskedEdit ControlSkinID="None" runat="server">
<eo:MaskedEditSegment IsRequired="True" MaxValue="99999" SegmentType="Number" />
</MaskedEdit>
</eo:MaskedEditColumn>
<eo:DeleteCommandColumn DeleteText="&#160;&#160;&#160;&#160;&#160;" Name="" Width="50">
<ButtonStyle CssText="background-color:#e0e0e0;background-image:url('00000208');color:white;" />
</eo:DeleteCommandColumn>
<eo:ButtonColumn ButtonText="Lib." ButtonType="PushButton">
</eo:ButtonColumn>
</Columns>
<ColumnHeaderStyle CssText="background-image:url('00050101');padding-left:8px;padding-top:3px;" />
</eo:Grid>


Then I have the following on the .aspx.net.

Protected Sub cmdName(ByVal s As Object, ByVal e As EO.Web.GridCommandEventArgs) Handles gridCP.ItemCommand
dm = Session("dm")
........
End Sub


But when I push the "Lib." button it never goes to the cmdName method (I put a breakpoint to confirm it).

What am I doing wrong?

Yes, you are right. I don't know why, but I assumed that it was in Server RunningMode.

Thank you, now works fine.