Android Question B4xTable.SetData error

[makis_best]

Hello all

I try to pass a list to b4xtabe using

B4XTable1.SetData(ItemList)

But when I run the application I get the error

Error occurred on line: 588 (B4XTable)
java.lang.ClassCastException: gr.john.generalclass$_itemtype cannot be cast to java.lang.Object[]
at gr.john.b4xtable$ResumableSub_SetData.resume(b4xtable.java:470)
at gr.john.b4xtable._setdata(b4xtable.java:337)
at gr.john.document$ResumableSub_LoadGeneralClassDataList.resume(document.java:945)
at gr.john.document._loadgeneralclassdatalist(document.java:916)
at gr.john.document._activity_resume(document.java:906)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:732)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:351)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:255)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:144)
at anywheresoftware.b4a.BA.raiseEvent(BA.java:176)
at gr.john.document$ResumeMessage.run(document.java:310)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5376)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:908)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:703)

Why?
What it means?

 

[makis_best]

Anyone?

 

[josejad]

Hi:

I haven’t tried B4XTables, but probably it would be easier for the forum people to help you if you give us all the info, to avoid people have to imagine what’s happening.

Please read
https://www.b4x.com/android/forum/threads/for-new-er-members-how-to-post-a-question-issue.96964/

where’s your code? What kind of elements are in the list?
Try to compile in Debug mode, what line raises the error? .....

 

[Erel]

Each item in the list should be made of an array of objects. One object (number or string) per column.

Based on the error message you haven't built the list correctly.

 

[makis_best]

I create the list using this code-->

Dim N As ItemType
            N.But = ""
            N.OrderNum = Main.General1.OrderNum
            N.Gid = Main.General1.Client_GID
            N.LineAA = Main.General1.LineAA
            N.Code    = ItemTable_All_Items.GetValue(0,row)
            N.Description = ItemTable_All_Items.GetValue(1,row)
            N.Munit = ItemTable_All_Items.GetValue(2,row)
            N.Price = ItemTable_All_Items.GetValue(3,row)
            N.Quantity = ItemTable_All_Items.GetValue(4,row)
            N.Perc1 = Main.General1.Percent1
            N.Perc2 = Main.General1.Percent2
            N.AxiaProEkptosis = Total1
            N.KathariAxia = KathariAxia
            N.PosostoFPA = Main.General1.VatPercent
            N.AxiaFPA = AxiaFPA
            N.Comment = ""
            ItemList.Add(N)

I can't have type into list?

 

[makis_best]

Ok... I work over it 9 days now and I can't figure out.

Any help?

 

[josejad]

Have you tried with an array?

Data is a list. Each item in the list is an array of objects that represents a row.
Example

Dim data As List
data.Initialize
data.Add(Array(1, 2, 3))
data.Add(Array(4, 5, 6))
B4XTable1.SetData(data)

 

[Erel]

As written several times above, each item in the list must be an array of objects.

I can't have type into list?

No.

 

[makis_best]

Ok....

I understand..... So no point to use type in my code.
I change my code to fit needs of b4xtable.
Thank you.

 

[josejad]

What about something like:

data.Add(Array(N.OrderNum,N.Gid,N.LineAA, ...))

Remember that there are currently three types: TEXT, NUMBERS and DATES.