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Rank: Member
Groups: Member
Joined: 9/14/2007
Posts: 12
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Hi,
I am using tree view and try to catch expand and collapse event by onclick event. It seems some how when I try to add image for collapse and expand for a node then I lose my click event for that node. Please let me know how can I have both (image for collapse and expand as well as click invent handling). I already set RaisesServerEvent to true but after adding emage it doesn’t rase event my html code is like this:
<eo:TreeView ID="TreeView1" runat="server" ControlSkinID="None" ClientSideOnItemClick="Select_Change" AutoScroll="False">
<LookNodes>
<eo:TreeNode DisabledStyle-CssText=""
ItemID="_TopLevelItem" NormalStyle-CssText=""
SelectedStyle-CssText="">
<SubGroup Style-CssClass="programmenunodetop" Style-CssText="">
</SubGroup>
</eo:TreeNode>
<eo:TreeNode
ItemID="_Default" NormalStyle-CssClass="programmenudefault"
SelectedStyle-CssClass="programmenunodeselect" HoverStyle-CssClass="programmenunodehover">
<SubGroup Style-CssText="">
</SubGroup>
</eo:TreeNode>
</LookNodes>
<Margin Width="0" />
<TopGroup Style-CssClass="programtreeview">
<Nodes>
<eo:TreeNode CollapsedImageUrl="~/imgs/program/LeftNavMilestone1.JPG" ExpandedImageUrl="~/imgs/program/LeftNavMilestone1_1.JPG"
ShowCheckBox="False" RaisesServerEvent="True" OnClickScript="Select_Change" PopulateOnDemand="True">
<SubGroup>
<Nodes>
<eo:TreeNode Text="Calendar" RaisesServerEvent="True">
</eo:TreeNode>
<eo:TreeNode Text="Contacts" RaisesServerEvent="True">
</eo:TreeNode>
</Nodes>
</SubGroup>
</eo:TreeNode>
<eo:TreeNode RaisesServerEvent="True" ShowCheckBox="False" CollapsedImageUrl="~/imgs/program/LeftNavMilestone1.JPG" ExpandedImageUrl="~/imgs/program/LeftNavMilestone1_1.JPG">
<SubGroup>
<Nodes>
<eo:TreeNode ImageUrl="00030408" Text="Inbox">
</eo:TreeNode>
</Nodes>
</SubGroup>
</eo:TreeNode>
</Nodes>
</TopGroup>
<LineImages Visible="False" />
</eo:TreeView>
thanks
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Rank: Administration
Groups: Administration
Joined: 5/27/2007
Posts: 24,088
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Hi,
Expand/Collapse a node does not account to a "click" on the node. That's why when you click the image to expand/collapse the node, Select_Change is not fired.
In order to track expand/collapse, you need to handle ClientSideOnGroupExpand and ClientSideOnGroupCollapsed instead.
RaisesServerEvent is irrelevant in this case.
Thanks
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Rank: Member
Groups: Member
Joined: 9/14/2007
Posts: 12
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i set the tree view ClientSideOnGroupCollapsed property to "Select_Change"
and then in code behind i put this code and put breakpoint on it but it never meet the break point
Sub Select_Change(ByVal item As EO.Web.MenuItem)
If item.Selected = True Then
item.Expanded = True
End If
End Sub
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Rank: Administration
Groups: Administration
Joined: 5/27/2007
Posts: 24,088
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It has nothing to do with code behind. Those are client side events. They can only be handled on the client side by JavaScript.
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