I have a update panel control for a multiview (tabs) and within a view of the multiview I have a search page that includes another update panel with dropdownlists. These dropdownlists are tiered (select item in ddl 1 and ddl2 populates, etc.) and what is happening is that when an item in dropdownlist2 is selected, the onselectedindexchange event first for the first and second dropdownlist. Also, the selected value for ddl2 is blank, it's like the control was never selected. What can I do to fix the issue? By the way I am on asp.net 2.0 and code is attached.
<
ajax:UpdatePanel
ID
=
"UpdatePanel2"
runat
=
"server"
UpdateMode
=
"Conditional"
ChildrenAsTriggers
=
"true"
>
<
ContentTemplate
>
<
asp:HiddenField
ID
=
"hTabid"
runat
=
"server"
Value
=
""
/>
<
table
runat
=
"server"
id
=
"tblMainContent"
cellspacing
=
"0"
cellpadding
=
"0"
style
=
"width:630px;height:auto;margin-top:-10px;"
>
<
tr
>
<
td
id
=
"Td1"
runat
=
"server"
colspan
=
"1"
style
=
"width: 5px; height: 38px"
valign
=
"top"
></
td
>
<
td
align
=
"left"
style
=
"width:590px; height: 38px; vertical-align: bottom;"
>
<
asp:Button
ID
=
"Button2"
runat
=
"server"
Text
=
"CURRENT AUCTIONS"
Width
=
"210px"
CssClass
=
"home_tab"
meta:resourcekey
=
"Menu1AuctionResource1"
OnClick
=
"Button2_Click"
CausesValidation
=
"False"
UseSubmitBehavior
=
"False"
/>
<
asp:Button
ID
=
"Button1"
runat
=
"server"
Text
=
"Sellers"
Width
=
"90px"
meta:resourcekey
=
"Menu1EquipmentResource1"
CssClass
=
"home_tab"
OnClick
=
"Button1_Click"
CausesValidation
=
"False"
UseSubmitBehavior
=
"False"
/>
<
asp:Button
ID
=
"Button3"
runat
=
"server"
Text
=
"Equipment"
Width
=
"100px"
meta:resourcekey
=
"Menu1LocationsResource1"
CssClass
=
"home_tab"
OnClick
=
"Button3_Click"
CausesValidation
=
"False"
UseSubmitBehavior
=
"False"
/>
<
asp:Button
ID
=
"Button4"
runat
=
"server"
Text
=
"Locations"
Width
=
"100px"
CssClass
=
"home_tab"
meta:resourcekey
=
"Menu1ConsignorsResource1"
OnClick
=
"Button4_Click"
CausesValidation
=
"False"
UseSubmitBehavior
=
"False"
/>
</
td
>
<
td
align
=
"left"
> </
td
>
</
tr
>
<
tr
id
=
"Tr1"
runat
=
"server"
>
<
td
id
=
"Td2"
runat
=
"server"
style
=
"width:5px;"
valign
=
"top"
colspan
=
"1"
>
</
td
>
<
td
id
=
"Td3"
runat
=
"server"
style
=
"width:630px;border-left:solid 1px #000"
valign
=
"top"
colspan
=
"2"
>
<
asp:MultiView
ID
=
"MultiView1"
runat
=
"server"
ActiveViewIndex
=
"0"
>
<
asp:View
ID
=
"View1"
runat
=
"server"
>
<
table
style
=
"width: 500px"
>
<
tr
>
<
td
colspan
=
"3"
> </
td
>
</
tr
>
<
tr
>
<
td
style
=
"width: 15px"
>
</
td
>
<
td
style
=
"width: 275px"
class
=
"bold"
>
<
asp:Label
ID
=
"lblKeywordSearch"
runat
=
"server"
Text
=
"Keyword Search:"
></
asp:Label
></
td
>
<
td
style
=
"width: 185px"
>
<
asp:TextBox
ID
=
"txtKeywords"
runat
=
"server"
></
asp:TextBox
></
td
>
</
tr
>
<
tr
>
<
td
style
=
"width: 15px"
>
</
td
>
<
td
style
=
"width: 275px"
class
=
"bold"
>
<
asp:Label
ID
=
"lblCategory"
runat
=
"server"
Text
=
"Category:"
></
asp:Label
>
</
td
>
<
td
style
=
"width: 185px"
>
<
asp:DropDownList
ID
=
"ddlCategory"
runat
=
"server"
>
</
asp:DropDownList
></
td
>
</
tr
>
<!--Locations in detail-->
<
tr
><
td
colspan
=
"3"
><
br
/><
asp:Label
ID
=
"lblNote"
CssClass
=
"small_text_color"
runat
=
"server"
Text
=
"Please select country, then state and city to filter by location."
></
asp:Label
><
br
/> </
td
> </
tr
>
<
tr
>
<
td
class
=
"bold"
style
=
"width: 15px"
>
</
td
>
<
td
style
=
"width: 200px"
class
=
"bold"
>
<
asp:Label
ID
=
"lblCountries"
runat
=
"server"
Text
=
"Countries:"
></
asp:Label
></
td
>
<
td
style
=
"width: 158px"
>
<
asp:DropDownList
ID
=
"ddlCountries"
runat
=
"server"
AutoPostBack
=
"true"
>
</
asp:DropDownList
></
td
>
</
tr
>
<
tr
>
<
td
class
=
"bold"
style
=
"width: 15px"
>
</
td
>
<
td
style
=
"width: 200px"
class
=
"bold"
>
<
asp:Label
ID
=
"lblStateProvince"
runat
=
"server"
Text
=
"State/Province:"
></
asp:Label
></
td
>
<
td
style
=
"width: 158px"
>
<
asp:DropDownList
ID
=
"ddlStates"
runat
=
"server"
AutoPostBack
=
"true"
>
</
asp:DropDownList
>
</
td
>
</
tr
>
<
ajax:UpdatePanel
ID
=
"UpdatePanel1"
runat
=
"server"
UpdateMode
=
"Conditional"
ChildrenAsTriggers
=
"true"
>
<
Triggers
>
<
ajax:AsyncPostBackTrigger
ControlID
=
"ddlCountries"
EventName
=
"SelectedIndexChanged"
/>
<
ajax:AsyncPostBackTrigger
ControlID
=
"ddlStates"
EventName
=
"SelectedIndexChanged"
/>
</
Triggers
>
<
ContentTemplate
>
<
tr
>
<
td
class
=
"bold"
style
=
"width: 15px"
>
</
td
>
<
td
style
=
"width: 200px"
class
=
"bold"
>
<
asp:Label
ID
=
"lblCityLocation"
runat
=
"server"
Text
=
"City/Location:"
></
asp:Label
></
td
>
<
td
style
=
"width: 158px"
>
<
asp:DropDownList
ID
=
"ddlCity"
runat
=
"server"
>
</
asp:DropDownList
></
td
>
</
tr
>
</
ContentTemplate
>
</
ajax:UpdatePanel
>
<!--Locations in detail-->
<
tr
>
<
td
style
=
"width: 15px"
>
</
td
>
<
td
style
=
"width: 275px"
class
=
"bold"
>
<
asp:Label
ID
=
"lblConsignors"
runat
=
"server"
Text
=
"Consignors:"
></
asp:Label
></
td
>
<
td
style
=
"width: 185px"
>
<
asp:DropDownList
ID
=
"ddlConsignors"
runat
=
"server"
>
</
asp:DropDownList
></
td
>
</
tr
>
<
tr
>
<
td
style
=
"width: 15px"
>
</
td
>
<
td
style
=
"width: 275px"
class
=
"bold"
>
<
asp:Label
ID
=
"lblLotID"
runat
=
"server"
Text
=
"Lot ID:"
></
asp:Label
></
td
>
<
td
style
=
"width: 185px"
>
<
asp:TextBox
ID
=
"txtLotID"
runat
=
"server"
></
asp:TextBox
></
td
>
</
tr
>
<
tr
>
<
td
style
=
"width: 15px"
>
</
td
>
<
td
style
=
"width: 275px"
class
=
"bold"
>
<
asp:Label
ID
=
"lblAuction"
runat
=
"server"
Text
=
"Auction:"
></
asp:Label
></
td
>
<
td
style
=
"width: 185px"
>
<
asp:DropDownList
ID
=
"ddlAuction"
runat
=
"server"
>
</
asp:DropDownList
></
td
>
</
tr
>
<
tr
>
<
td
style
=
"width: 15px"
>
</
td
>
<
td
style
=
"width: 275px"
class
=
"bold"
>
<
asp:Label
ID
=
"lblEventType"
runat
=
"server"
Text
=
"Event Type:"
></
asp:Label
></
td
>
<
td
style
=
"width: 185px"
><
asp:DropDownList
ID
=
"ddlAucType"
runat
=
"server"
>
<
asp:ListItem
Value
=
"0"
meta:resourcekey
=
"ddiAllEventsResource1"
>All Events</
asp:ListItem
>
<
asp:ListItem
Value
=
"1"
meta:resourcekey
=
"ddiAuctionResource1"
>Auction</
asp:ListItem
>
<
asp:ListItem
Value
=
"2"
meta:resourcekey
=
"ddiPrivateSaleResource1"
>Private Sale</
asp:ListItem
>
</
asp:DropDownList
></
td
>
</
tr
>
<
tr
>
<
td
colspan
=
"3"
> </
td
>
</
tr
>
<
tr
>
<
td
style
=
"width: 15px"
>
</
td
>
<
td
style
=
"width: 275px"
>
</
td
>
<
td
style
=
"width: 185px"
>
<
asp:Button
ID
=
"btnSearch"
runat
=
"server"
Text
=
""
CssClass
=
"adv_search_btn"
/></
td
>
</
tr
>
<
tr
>
<
td
colspan
=
"3"
> </
td
>
</
tr
>
</
table
>
</
div
>
</
asp:View
>
<
asp:View
ID
=
"View2"
runat
=
"server"
>
<
table
style
=
"width:610px;"
cellspacing
=
"0"
cellpadding
=
"0"
class
=
"home_tab_container"
>
<
tr
>
<
td
>
<
asp:DataList
runat
=
"server"
ShowFooter
=
"False"
ShowHeader
=
"false"
CellPadding
=
"0"
Width
=
"600px"
ID
=
"dlSellers"
RepeatColumns
=
"3"
RepeatLayout
=
"Table"
EnableViewState
=
"true"
>
<
ItemTemplate
>
<
div
style
=
"padding:10px 0 10px 10px;"
>
<
a
href='BrowseLots.aspx?concode=<%# DataBinder.Eval(Container.DataItem, "consignor_code") %>'>
<
asp:Image
ID
=
"imgSeller"
ImageUrl='<%# DataBinder.Eval(Container.DataItem, "logo_path") %>' AlternateText='<%# DataBinder.Eval(Container.DataItem, "alttext") %>' runat="server" />
</
a
>
</
div
>
</
ItemTemplate
>
</
asp:DataList
>
</
td
>
</
tr
>
</
table
>
</
asp:View
>
<
asp:View
ID
=
"View3"
runat
=
"server"
>
<
div
style
=
"height:100%;width:610px;border-top:solid 1px #000;border-right:solid 1px #000;border-bottom:solid 1px #000;padding:10px 0 10px 5px;"
>
<
asp:DataList
ID
=
"dl_equipment"
runat
=
"server"
Width
=
"610px"
RepeatColumns
=
"2"
RepeatLayout
=
"Table"
OnItemDataBound
=
"dl_equipment_ItemDataBound"
>
<
ItemTemplate
>
<
div
style
=
"width:300px;margin-top:18px;line-height:18px;"
>
<
asp:HiddenField
ID
=
"hfCatID"
runat
=
"server"
Value='<%# Eval("categoryid") %>' />
<
span
id
=
"showhidelinks"
class
=
"bold"
runat
=
"server"
style
=
"width:15px;"
></
span
>
<
a
class
=
"small_text, bold"
href='BrowseLots.aspx?categoryid=<%#Eval("categoryid")%>&order=8&pageindex=1&numrows=50'>
<%#Eval("categoryname")%> (<%#Eval("categorycount")%>)
</
a
>
<
div
id
=
"childlist"
runat
=
"server"
style
=
"width:300px;"
>
<
asp:DataList
ID
=
"dlstChildCategory"
runat
=
"server"
SkinID
=
"dlstDefault"
RepeatColumns
=
"1"
RepeatDirection
=
"Vertical"
RepeatLayout
=
"table"
Width
=
"261px"
>
<
ItemStyle
Width
=
"300px"
/>
<
ItemTemplate
>
<
div
id
=
"childcat_div"
style
=
"margin:0px 0px 0px 15px; width:300px;line-height:14px;"
>
<
span
class
=
"bold"
>
<
a
class
=
"small_text"
href='BrowseLots.aspx?categoryid=<%#Eval("childid")%>&order=8&pageindex=1&numrows=50'>
<%#Eval("childname")%> (<%#Eval("childcount")%>)
</
a
>
</
span
>
</
div
>
</
ItemTemplate
>
</
asp:DataList
>
</
div
>
</
div
>
</
ItemTemplate
>
</
asp:DataList
>
</
div
>
</
asp:View
>
<
asp:View
ID
=
"View4"
runat
=
"server"
>
<
table
style
=
"width: 610px"
cellspacing
=
"0"
cellpadding
=
"0"
class
=
"home_tab_container"
>
<
tr
id
=
"Tr3"
runat
=
"server"
style
=
"background-color:#4A92C4;color:#fff;padding: 5px 0 5px 0;font-size:12px;"
>
<
th
id
=
"Td5"
runat
=
"server"
align
=
"left"
style
=
"width: 290px; padding:8px 0 8px 5px;border-bottom: solid 1px #000;"
valign
=
"top"
>
<
asp:Label
ID
=
"lblUSA"
runat
=
"server"
CssClass
=
"medium_text"
Text
=
"USA:"
meta:resourcekey
=
"lblUSAResource1"
></
asp:Label
>
<
asp:HyperLink
runat
=
"server"
NavigateUrl
=
"~/BrowseLots.aspx?location=usa"
ID
=
"hEquipmentLocationUSA"
meta:resourcekey
=
"hEquipmentLocationUSAResource1"
Text
=
"(All)"
></
asp:HyperLink
></
th
>
<
th
align
=
"left"
style
=
"width: 15px;border-bottom: solid 1px #000;"
valign
=
"top"
>
</
th
>
<
th
align
=
"left"
valign
=
"top"
style
=
"width: 290px; padding:8px 0 8px 5px;border-bottom: solid 1px #000;"
>
<
asp:Label
runat
=
"server"
Text
=
"International:"
CssClass
=
"medium_text"
ID
=
"lblOther"
meta:resourcekey
=
"lblOtherResource1"
></
asp:Label
>
<
asp:HyperLink
runat
=
"server"
NavigateUrl
=
"~/BrowseLots.aspx?location=intl"
ID
=
"hEquipmentLocationIntl"
meta:resourcekey
=
"hEquipmentLocationIntlResource1"
Text
=
"(All)"
></
asp:HyperLink
></
th
>
</
tr
>
<
tr
id
=
"Tr4"
runat
=
"server"
>
<
td
id
=
"Td6"
runat
=
"server"
align
=
"left"
colspan
=
"3"
style
=
"height: 0px;"
>
</
td
>
</
tr
>
<
tr
runat
=
"server"
id
=
"trlocations"
style
=
"padding-bottom:10px;"
>
<
td
id
=
"tdUSA"
runat
=
"server"
align
=
"left"
valign
=
"top"
style
=
"padding-left:10px;"
>
<
asp:DataList
runat
=
"server"
ShowFooter
=
"False"
ShowHeader
=
"false"
CellPadding
=
"0"
CellSpacing
=
"0"
Width
=
"290px"
ID
=
"dlUSA"
RepeatColumns
=
"3"
RepeatLayout
=
"Table"
EnableViewState
=
"true"
>
<
ItemTemplate
>
<
div
style
=
"width:95px;padding: 3px 0 3px 0;line-height:24px;"
>
<
a
href='BrowseLots.aspx?location=<%# Eval("Key") %>'>
<%# Eval("Key") %>
</
a
>
</
div
>
</
ItemTemplate
>
</
asp:DataList
></
td
>
<
td
align
=
"left"
style
=
"width: 15px;border-left:solid 1px #000;"
valign
=
"top"
>
</
td
>
<
td
id
=
"tdOther"
align
=
"left"
valign
=
"top"
runat
=
"server"
>
<
asp:DataList
runat
=
"server"
ShowFooter
=
"False"
ShowHeader
=
"False"
CellPadding
=
"0"
Width
=
"270px"
CssClass
=
"dl_container"
ID
=
"dlIntl"
RepeatColumns
=
"2"
RepeatLayout
=
"Table"
EnableViewState
=
"true"
>
<
ItemTemplate
>
<
div
style
=
"width:100px;padding: 3px 0 3px 0;line-height:24px;"
>
<
a
href='BrowseLots.aspx?location=<%# Eval("Key") %>'>
<%#Eval("Key")%>
</
a
>
</
div
>
</
ItemTemplate
>
</
asp:DataList
></
td
>
</
tr
>
</
table
>
</
asp:View
>
</
asp:MultiView
>
</
td
>
</
tr
>
</
table
>
</
ContentTemplate
>
</
ajax:UpdatePanel
>