regarding DataNodeInfo(DisplayList.DynamicNode):unknown child node ACTION

[Former Member]

hi everyone

I am facing such problem while working with dynamic elements the exception I am getting is as follows:com.sap.tc.webdynpro.progmodel.context.ContextException: DataNodeInfo(DisplayList.DynamicNode): unknown child node ACTION

[Former Member · Accepted solution]

Hi Jaspreet,

Make doubly sure that you are not trying to access dynamic nodes which has not been created yet. Even after creating node, you nedd to set properties of node and then try to set values.

Regards,

Ganga.

[Former Member · Accepted solution]

hi ganga

i have created a dynamic node and for the first time my dynamic node has been created properly the problem comes when i go back n recreate. let me explain my senario..

on the first pg i hav a drop down which contain report types, on clickin one of the type i move to the second view where i create a table dynamically using a dynamic node. Now for the first navigation its working fine but when i go back to first screen n select another report type from the drop down it gives me the following exception.

Thanks& regards

jaspreet

[Former Member · Accepted solution]

Hi jaspreet,

Can u send the code to look in.

regards

Sumit

[Former Member · Accepted solution]

Hi Sumit

I have pasted my code below:

public static void wdDoModifyView(IPrivateDisplayList wdThis, IPrivateDisplayList.IContextNode wdContext, com.sap.tc.webdynpro.progmodel.api.IWDView view, boolean firstTime)

{

//@@begin wdDoModifyView

try

{

IWDMessageManager msgMgr = wdThis.wdGetAPI().getComponent().getMessageManager();

int intCat = wdContext.nodeField_Catalog_Disp1_Out().size();

int intList = wdContext.nodeWeb_Table_Disp1_Out().size();

int intSelection = wdContext.nodeSelectionNode().size();

String selc_field=wdContext.currentReportTypeElement().getName();

wdContext.currentContextElement().setField_selection("Selection Fields: "+selc_field);

IWDTable theGrp = (IWDTable)view.getElement("Table2");

theGrp.setSelectionMode(WDTableSelectionMode.NONE);

theGrp.setFooterVisible(false);

theGrp.setDesign(WDTableDesign.ALTERNATING);

theGrp.setReadOnly(true);

if(firstTime)

{

IWDNodeInfo node = wdContext.nodeDynamicNode().getNodeInfo();

for(int i=0;i<intCat;i++)

{

wdThis.wdGetAPI().getComponent().getMessageManager().reportSuccess("intcat"+intCat);

//wdThis.wdGetAPI().getComponent().getMessageManager().reportSuccess("i"+i);

node.addAttribute(wdContext.nodeField_Catalog_Disp1_Out().getField_Catalog_Disp1_OutElementAt(i).getFieldname(),"com.sap.dictionary.string");

IWDTableColumn tabCln = (IWDTableColumn)view.createElement(IWDTableColumn.class,"Cln_"+wdContext.nodeField_Catalog_Disp1_Out().getField_Catalog_Disp1_OutElementAt(i).getFieldname());

IWDCaption clnCpt = (IWDCaption)view.createElement(IWDCaption.class,"hd_"+wdContext.nodeField_Catalog_Disp1_Out().getField_Catalog_Disp1_OutElementAt(i).getFieldname());

clnCpt.setText("");

clnCpt.setText(wdContext.nodeField_Catalog_Disp1_Out().getField_Catalog_Disp1_OutElementAt(i).getHeading());

IWDTableStandardCell tblStdcell = (IWDTableStandardCell)view.createElement(IWDTableStandardCell.class,"stdCell_"+wdContext.nodeField_Catalog_Disp1_Out().getField_Catalog_Disp1_OutElementAt(i).getFieldname());

IWDTextView txtHeader = (IWDTextView)view.createElement(IWDTextView.class,"Header_"+wdContext.nodeField_Catalog_Disp1_Out().getField_Catalog_Disp1_OutElementAt(i).getFieldname());

txtHeader.setText(wdContext.nodeField_Catalog_Disp1_Out().getField_Catalog_Disp1_OutElementAt(i).getHeading());

txtHeader.setDesign(WDTextViewDesign.HEADER3);

tblStdcell.setEditor(txtHeader);

tblStdcell.setCellDesign(WDTableCellDesign.GROUP_LEVEL2);

tabCln.addFixedTopCell(tblStdcell);

IWDTextView clnTce = (IWDTextView)view.createElement(IWDTextView.class,"tce_"+wdContext.nodeField_Catalog_Disp1_Out().getField_Catalog_Disp1_OutElementAt(i).getFieldname());

clnTce.bindText("DynamicNode."+wdContext.nodeField_Catalog_Disp1_Out().getField_Catalog_Disp1_OutElementAt(i).getFieldname());

clnTce.setWrapping(true);

tabCln.setTableCellEditor(clnTce);

theGrp.addColumn(tabCln);IWDTable table = (IWDTable) view.getElement("Table2");

wdContext.currentContextElement().setTableSorter(new TableSorter(table, wdThis.wdGetSortAction(), null));

}

IWDTransparentContainer theTarnsDisp = (IWDTransparentContainer)view.getElement("TransparentContainer_3");

//wdThis.wdGetAPI().getComponent().getMessageManager().reportSuccess("intsel"+intSelection);

for(int k =0;k<intSelection;k++)

{

//node.addAttribute("Disp_"+wdContext.nodeSelectionNode().getSelectionNodeElementAt(k).getName(),"com.sap.dictionary.string");

IWDTextView clnTxt1 = (IWDTextView)view.createElement(IWDTextView.class,"Disp1_"+wdContext.nodeSelectionNode().getSelectionNodeElementAt(k).getName());

clnTxt1.setText(wdContext.nodeSelectionNode().getSelectionNodeElementAt(k).getName()+ " : ");

clnTxt1.setDesign(WDTextViewDesign.HEADER3);

clnTxt1.setWrapping(true);

IWDTextView clnTxt2 = (IWDTextView)view.createElement(IWDTextView.class,"Disp2_"+wdContext.nodeSelectionNode().getSelectionNodeElementAt(k).getName());

clnTxt2.setText(wdContext.nodeSelectionNode().getSelectionNodeElementAt(k).getValue1());

if(("".equals(wdContext.nodeSelectionNode().getSelectionNodeElementAt(k).getValue2())))

{

clnTxt2.setText(wdContext.nodeSelectionNode().getSelectionNodeElementAt(k).getValue1());

}

if(!"".equals(wdContext.nodeSelectionNode().getSelectionNodeElementAt(k).getValue2()))

{

clnTxt2.setText(wdContext.nodeSelectionNode().getSelectionNodeElementAt(k).getValue1()" - "wdContext.nodeSelectionNode().getSelectionNodeElementAt(k).getValue2());

}

clnTxt2.setWrapping(true);

IWDGridData gridLayout1 = (IWDGridData)clnTxt1.createLayoutData(IWDGridData.class);

gridLayout1.setWidth("5%");

gridLayout1.setPaddingBottom("3");

IWDGridData gridLayout2 = (IWDGridData)clnTxt2.createLayoutData(IWDGridData.class);

gridLayout2.setPaddingBottom("3");

theTarnsDisp.addChild(clnTxt1);

theTarnsDisp.addChild(clnTxt2);

// wdThis.wdGetAPI().getComponent().getMessageManager().reportSuccess("first ck in end of for");

}//end of intselection for loop

wdContext.currentContextElement().setModifyFlag(false);

// }

}

// wdThis.wdGetAPI().getComponent().getMessageManager().reportSuccess("first check aftr for1");

//}//end of intcat for loop

//wdThis.wdGetAPI().getComponent().getMessageManager().reportSuccess("first check aftr for2");

//}// if first time ends

// second chk

// wdThis.wdGetAPI().getComponent().getMessageManager().reportSuccess("second check");

//........................................

if(wdContext.currentContextElement().getModifiedFlag())

{

String strLine = "";

int intLine =0;

Collection col = new Vector();

IWDTextAccessor textAccessor = wdThis.wdGetAPI().getComponent().getTextAccessor();

String strLan = textAccessor.getText("TXT_LAN");

if("EN".equalsIgnoreCase(strLan))

{

for(int j=0;j<intList;j++)

{

IDynamicNodeElement dynObj = wdContext.createDynamicNodeElement();

strLine = wdContext.nodeWeb_Table_Disp1_Out().getWeb_Table_Disp1_OutElementAt(j).getTline();

intLine = strLine.length();

strLine = strLine.substring(1,intLine-1);

for(int k=0;k<intCat;k++)

{

Integer startIntger = Integer.valueOf(wdContext.nodeField_Catalog_Disp1_Out().getField_Catalog_Disp1_OutElementAt(k).getStartpos());

Integer lengthIntger = Integer.valueOf(wdContext.nodeField_Catalog_Disp1_Out().getField_Catalog_Disp1_OutElementAt(k).getLength());

int start = startIntger.intValue();

int length = lengthIntger.intValue();

String strVal = strLine.substring(start,start+length);

if(wdContext.nodeField_Catalog_Disp1_Out().getField_Catalog_Disp1_OutElementAt(k).getDatatype().equalsIgnoreCase("DATE"))

{

try

{

String strdate ="";

String strFmt = "";

if("YYYY/MM/DD".equalsIgnoreCase(wdContext.currentUser_ProfileElement().getDatefmt()))

{

strFmt = "yyyy/MM/dd";

}

else

{

strFmt = "MM/dd/yyyy";

}

SimpleDateFormat ch1 = new SimpleDateFormat("yyyyMMdd");

//SimpleDateFormat ch2 = new SimpleDateFormat("yyyy-MM-dd");

SimpleDateFormat ch2 = new SimpleDateFormat(strFmt);

strVal = strVal.trim();

if(!"".equals(strVal))

{

strdate = ch2.format(ch1.parse(strVal));

}

dynObj.setAttributeValue(wdContext.nodeField_Catalog_Disp1_Out().getField_Catalog_Disp1_OutElementAt(k).getFieldname(),strdate);

}

catch(Exception e)

{

// msgMgr.reportException(e.getLocalizedMessage(), false);

// msgMgr.reportException(e.getMessage(), false);

// msgMgr.reportException(e.toString(), false);

}

}

else if(wdContext.nodeField_Catalog_Disp1_Out().getField_Catalog_Disp1_OutElementAt(k).getDatatype().equalsIgnoreCase("QUAN"))

{

Double dblVal = null;

DecimalFormat sdf = new DecimalFormat("#,###.000####");

dblVal = new Double(strVal);

dynObj.setAttributeValue(wdContext.nodeField_Catalog_Disp1_Out().getField_Catalog_Disp1_OutElementAt(k).getFieldname(),sdf.format(dblVal.doubleValue()));

}

else

{

dynObj.setAttributeValue(wdContext.nodeField_Catalog_Disp1_Out().getField_Catalog_Disp1_OutElementAt(k).getFieldname(),strVal);

}

}

col.add(dynObj);

}// for ends

}

else

{

for(int j=0;j<intList;j++)

{

IDynamicNodeElement dynObj = wdContext.createDynamicNodeElement();

strLine = wdContext.nodeWeb_Table_Disp1_Out().getWeb_Table_Disp1_OutElementAt(j).getTline();

intLine = strLine.length();

strLine = strLine.substring(1,intLine-1);

String[] strArr = strLine.split("#");

for(int k=0;k<intCat;k++)

{

// Integer startIntger = Integer.valueOf(wdContext.nodeField_Catalog_Disp1_Out().getField_Catalog_Disp1_OutElementAt(k).getStartpos());

// Integer lengthIntger = Integer.valueOf(wdContext.nodeField_Catalog_Disp1_Out().getField_Catalog_Disp1_OutElementAt(k).getLength());

//

// int start = startIntger.intValue();

// int length = lengthIntger.intValue();

// String strVal = strLine.substring(start,start+length);

String strVal = strArr[k];

if(wdContext.nodeField_Catalog_Disp1_Out().getField_Catalog_Disp1_OutElementAt(k).getDatatype().equalsIgnoreCase("DATE"))

{

try

{

String strdate ="";

String strFmt = "";

if("YYYY/MM/DD".equalsIgnoreCase(wdContext.currentUser_ProfileElement().getDatefmt()))

{

strFmt = "yyyy/MM/dd";

}

else

{

strFmt = "MM/dd/yyyy";

}

SimpleDateFormat ch1 = new SimpleDateFormat("yyyyMMdd");

//SimpleDateFormat ch2 = new SimpleDateFormat("yyyy-MM-dd");

SimpleDateFormat ch2 = new SimpleDateFormat(strFmt);

strVal = strVal.trim();

if(!"".equals(strVal))

{

strdate = ch2.format(ch1.parse(strVal));

}

dynObj.setAttributeValue(wdContext.nodeField_Catalog_Disp1_Out().getField_Catalog_Disp1_OutElementAt(k).getFieldname(),strdate);

}

catch(Exception e)

{

// msgMgr.reportException(e.getLocalizedMessage(), false);

// msgMgr.reportException(e.getMessage(), false);

// msgMgr.reportException(e.toString(), false);

}

}

else if(wdContext.nodeField_Catalog_Disp1_Out().getField_Catalog_Disp1_OutElementAt(k).getDatatype().equalsIgnoreCase("QUAN"))

{

Double dblVal = null;

DecimalFormat sdf = new DecimalFormat("#,###.000####");

dblVal = new Double(strVal);

dynObj.setAttributeValue(wdContext.nodeField_Catalog_Disp1_Out().getField_Catalog_Disp1_OutElementAt(k).getFieldname(),sdf.format(dblVal.doubleValue()));

}

else

{

dynObj.setAttributeValue(wdContext.nodeField_Catalog_Disp1_Out().getField_Catalog_Disp1_OutElementAt(k).getFieldname(),strVal);

}

}

col.add(dynObj);

}// for ends

}

wdContext.nodeDynamicNode().bind(col);

if(wdContext.nodeDynamicNode().size()==0)

{

wdContext.currentContextElement().setDownLoadHide(WDVisibility.NONE);

}

else

{

wdContext.currentContextElement().setDownLoadHide(WDVisibility.VISIBLE);

}

wdContext.currentContextElement().setModifiedFlag(false);

}// if ends

}

catch(Exception e)

{

wdThis.wdGetAPI().getComponent().getMessageManager().reportException("Error Occurred in WdDoModifyView Method of DisplayList View. Please contact System Administrator"+e,false);

}

finally

{}

//@@end

}

Thanks & Regards

Jaspreet Kaur

[Former Member · Accepted solution]

Hi Jaspreet,

Try writing this at the very beginning of wdDoModifyView()

view.resetView();

Regards,

Murtuza

[Former Member · Accepted solution]

HI Murtuza

I wrote these three lines in the beginning of my code:

wdThis.wdGetAPI().getContext().reset(true);

view.resetView();

then it was working for the first time and also it was populating data according to my report types whereas without this code my other report types were getting the same output as the first selected report ie my dynamic node was not refreshing .As the report type change the parameters for display table also change which was not happening without these two lines.But on goin back ie back link i was getting an exception.If I dont reset the context then my dynamic node does not get refreshed n i get an exception

DataNodeInfo(DisplayList.DynamicNode):unknown child node ACTION

and if i reset the context then also i am getting exception of some unidentified attribute but in this case the data is cummin according to report type.

[Former Member · Accepted solution]

Hi Jaspreet,

Also remove the if(firstTime) clause and write your code without any condition.

Regards,

Murtuza

[Former Member · Accepted solution]

Hi Murtuza

Without if firsttime i get the following error:CreationFailedException: Cannot create view element implementation com.sap.tc.webdynpro.clientserver.uielib.standard.impl.TextView

i am not able to see the data even for the first time then in this case.

Thanks & Regards

Jaspreet

[Former Member · Accepted solution]

Hi Jaspreet,

This error has nothing to do with the if(firstTime) clause as that clause only indicates that whether wdDoModify() view is called for the first time or not.

We can get to the root if you can send the line that is causing the problem.

Regards,

Murtuza

[Former Member · Accepted solution]

Hi Murtuza

Yeah ur rite its not related to that i fixed that problem but a new problem arrised this time with my downloading to excel for one of the reports it is giving the following exception:java.io.FileNotFoundException: Credit/Debit Note.xls (A file or directory in the path name does not exist.)

Thanks & Regards

Jaspreet

[Former Member · Accepted solution]

Hi Jaspreet,

Just check the availibilty of the .xls file at the path specified. The .xls file might be deleted or the location might be different.

Regards,

Murtuza

[Former Member · Accepted solution]

Hi Murtuza

Please can u explain wut exactly these two lines do:

wdThis.wdGetAPI().getContext().reset(true);

view.resetView();

Thanks & Regards

Jaspreet Kaur Grewal

[Former Member · Accepted solution]

Hi Murtuza

According to wut i observed is all xls files r opening they r being named by the report name only 2 are not opening as there name contains a / ie credit/debit so even i tested this in xls by creating an excel sheet with such a name so its also givin error.Is my assumption correct?if so then is it a possible way to trim the special character so further such problem should not occur.

Thanks & Regards

Jaspreet Kaur

[Former Member · Accepted solution]

Hi Jaspreet,

Try trimming that name and view.resetView() will remove all the dynamically created things in your view and will make it as it was during design time.

Regards,

Murtuza

[Former Member · Accepted solution]

Hi Murtuza

Thanks for ur help.

thanks & regards

Jaspreet