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POI can't access ASPxComboBox component when it is in both ASPxPageControl tab pages
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  1. POI can't access ASPxComboBox component when it is in both ASPxPageControl tab pages
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    copied!<p>I can't access ASPxComboBox component when it is in ASPxPageControl both tab pages. So I have this function added to ClientSideEvents with string.Format:</p> <pre><code>function(s, e) {{ if (window['{1}']) {{ {0}.SetSelectedItem( {0}.FindItemByText( {2}.GetText() ) ); {0}.Focus(); {3}.PerformCallback( {0}.GetSelectedItem().value ); }} }} </code></pre> <p>And firing this function first at one tab page then at other page, I get error:</p> <pre><code>Microsoft JScript runtime error: Unable to get value of the property 'SetSelectedItem': object is null or undefined </code></pre> <p>Why is it that way? Could I somehow access that combobox after switching tabs?<br> Btw, ASPxPopupControl apears on both tabs then opened..</p> <p>More context:</p> <pre><code>0 is ASPxClientControl.GetControlCollection().Get('&lt;%=ASPxComboBox_Views.ClientID%&gt;'), (compiles to ctl00_ctl00_ASPxSplitter_Main_ContentPlaceHolderMain_ContentProgramMain_ASPxRoundPanelMain_ASPxPageControl_Main_ASPxCallbackPanel_Redagavimas_ASPxCallbackPanel_RedagavimasGrid_GridLayout_Redagavimas_ASPxPopupControl_Layout_ASPxCallbackPanel_Views_ASPxComboBox_Views ) 1 is ASPxClientControl.GetControlCollection().Get('&lt;%=ASPxComboBox_Views.ClientInstanceName%&gt;'), (compiles to cbViews ) 2 is ASPxClientControl.GetControlCollection().Get('&lt;%=GetClientStr(ASPxHyperLink_Desc.ClientID%&gt;'), (compiles to ctl00_ctl00_ASPxSplitter_Main_ContentPlaceHolderMain_ContentProgramMain_ASPxRoundPanelMain_ASPxPageControl_Main_ASPxCallbackPanel_Redagavimas_ASPxCallbackPanel_RedagavimasGrid_GridLayout_Redagavimas_ASPxHyperLink_Desc ) 3 is ASPxClientControl.GetControlCollection().Get('&lt;%=ASPxCallbackPanel_Menu.ClientID%&gt;'), (compiles to ctl00_ctl00_ASPxSplitter_Main_ContentPlaceHolderMain_ContentProgramMain_ASPxRoundPanelMain_ASPxPageControl_Main_ASPxCallbackPanel_Redagavimas_ASPxCallbackPanel_RedagavimasGrid_GridLayout_Redagavimas_ASPxPopupControl_Layout_ASPxCallbackPanel_Menu ) </code></pre> <p>And it doesn't work if ASPxComboBox_Views is in ASPxPageControl tab. To be precise, my page looks like this:</p> <pre><code>&lt;..&gt; &lt;dx:ASPxPageControl ID="ASPxPageControl_Main"&gt; &lt;TabPages&gt; &lt;dx:TabPage&gt;&lt;..&gt; &lt;dx:ASPxGridView ID="ASPxGridView_Naudojimas"&gt; //From here starts partial page which is one for both tabpages &lt;dx:ASPxPopupControl ID="ASPxPopupControl_Layout"&gt; &lt;ContentCollection&gt; &lt;dx:PopupControlContentControl ID="PopupControlContentControl_Layout"&gt; &lt;div&gt;&lt;table&gt;&lt;tr&gt;&lt;td align="left" width="100%"&gt; &lt;dx:ASPxCallbackPanel ID="ASPxCallbackPanel_Views"&gt; &lt;PanelCollection&gt; &lt;dx:PanelContent ID="PanelContent1"&gt; &lt;dx:ASPxComboBox ID="ASPxComboBox_Views" runat="server" ...&gt; &lt;/dx:TabPage&gt; &lt;dx:TabPage&gt;&lt;..&gt; &lt;dx:ASPxGridView ID="ASPxGridView_Redagavimas"&gt; //From here starts partial page which is one for both tabpages &lt;dx:ASPxPopupControl ID="ASPxPopupControl_Layout"&gt; &lt;ContentCollection&gt; &lt;dx:PopupControlContentControl ID="PopupControlContentControl_Layout"&gt; &lt;div&gt;&lt;table&gt;&lt;tr&gt;&lt;td align="left" width="100%"&gt; &lt;dx:ASPxCallbackPanel ID="ASPxCallbackPanel_Views"&gt; &lt;PanelCollection&gt; &lt;dx:PanelContent ID="PanelContent1"&gt; &lt;dx:ASPxComboBox ID="ASPxComboBox_Views" runat="server" TextField="Description" ValueField="FullName" ClientInstanceName="cbViews" TextFormatString="{0}"&gt; (deleted some properties just to be easier to read here) </code></pre>
 

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