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Thread: Exception with LiveGridView

  1. #1

    Default Exception with LiveGridView

    Hi,
    i am getting exception while implementing with LiveGridView. please help me.following is the stack trace.

    00:02:52.329 [ERROR] Uncaught exception escaped
    java.lang.NullPointerException: null
    at com.extjs.gxt.ui.client.widget.grid.LiveGridView.doLoad(LiveGridView.java:219)
    at com.extjs.gxt.ui.client.widget.grid.LiveGridView$3.handleEvent(LiveGridView.java:329)
    at com.extjs.gxt.ui.client.util.DelayedTask$1.run(DelayedTask.java:30)
    at com.google.gwt.user.client.Timer.fire(Timer.java:141)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
    at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
    at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:157)
    at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessagesWhileWaitingForReturn(BrowserChannelServer.java:326)
    at com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:207)
    at com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:126)
    at com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:561)
    at com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:269)
    at com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java:91)
    at com.google.gwt.core.client.impl.Impl.apply(Impl.java)
    at com.google.gwt.core.client.impl.Impl.entry0(Impl.java:214)
    at sun.reflect.GeneratedMethodAccessor96.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
    at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
    at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:157)
    at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessages(BrowserChannelServer.java:281)
    at com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:531)
    at com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:352)
    at java.lang.Thread.run(Thread.java:662)

  2. #2
    Sencha Premium Member
    Join Date
    Sep 2007
    Posts
    13,976

    Default

    Please post your code in a standalone testcase that implements EntryPoint. Stacktraces with linenumbers are meaningless without posting the versionnumber you use.

    YOu probably are not using any loader in your liststore, which is required.

  3. #3

    Default

    Hi Sven,
    Thanks for ur quick reply. we are able to display records on the widget now. the problem is what is the default visible record size of LivegridView. i have total of 404 records. by default only 17 are visible, on scroll we get 17 more etc. plz help me how can i increase the default display size. i have attached the screen shot of my widget. after 17 records still we have space on widget, how can we utilize all space. plz find and suggest me.

    Thanks!
    Attached Images Attached Images
    Last edited by salmondavid888; 24 Dec 2010 at 6:38 AM. Reason: Removed screen shot

  4. #4
    Sencha Premium Member
    Join Date
    Sep 2007
    Posts
    13,976

    Default

    Should adjust automatically. I can only repeat me

    Please post your code in a standalone testcase that implements EntryPoint.

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