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    #1

    Problem with printing

    Hello,
    I have a problem with this code :

    Code:
    final VLayout layout = new VLayout(15);
		
		IButton printButton = new IButton("Imprimer");   
		printButton.addClickHandler(new ClickHandler() {   
            public void onClick(ClickEvent event) {
            	Canvas.showPrintPreview(layout);
            }   
        });
        
        layout.addMember(printButton);
    When I click on the button there is a Javascript error : "parent[...] a la valeur Null ou n'est pas un objet" ("parent[...] has a null value or is not an object" ?) and when I try a print preview, my listgrid (not in the code) which is in my layout is really odd (empty lines)

    What is the problem ?
    Is it a bug with SmartGwt or is it not the good way to print a listGrid (which has scrollbars) ?

    Thank you very much by advance
    Tags: None
    #2
    Can you show the rest of the code, and provide a stack trace (ideally from both Firebug and the Developer Console in IE) for that JS error?

    Comment

      #3
      I can't install these tools on my PC but that is the rest of the code :

      Code:
      package org.gwtbook.client;

import com.smartgwt.client.data.DataSource;
import com.smartgwt.client.widgets.Canvas;
import com.smartgwt.client.widgets.IButton;
import com.smartgwt.client.widgets.events.ClickEvent;
import com.smartgwt.client.widgets.events.ClickHandler;
import com.smartgwt.client.widgets.grid.ListGrid;
import com.smartgwt.client.widgets.layout.VLayout;

public class TransactionsProto extends ProtoSoclePanel {
	
	public static class Factory implements PanelFactory {
        private String id;

        public Canvas create() {
            TransactionsProto panel = new TransactionsProto();
            id = panel.getID();
            return panel;
        }

        public String getID() {
            return id;
        }

    }
	
	public Canvas getViewPanel() {
        
		final DataSource dataSource = TransactionDS.getInstance();
		
		final ListGrid transactGrid = new ListGrid();
		
		final VLayout layout = new VLayout(15);
		
		IButton printButton = new IButton("Imprimer");   
		printButton.addClickHandler(new ClickHandler() {   
            public void onClick(ClickEvent event) {
            	Canvas.showPrintPreview(layout);
            }   
        });
        
        layout.addMember(printButton);
		
		transactGrid.setAutoFetchData(true);
		transactGrid.groupBy("numCompte");
		transactGrid.setGroupStartOpen("all");
		transactGrid.setSortField("numCompte");
		
		transactGrid.setWidth(600);
		transactGrid.setHeight(200);
		transactGrid.setDataSource(dataSource);
		transactGrid.setCanEdit(true);
		transactGrid.setCanReorderRecords(true);
		transactGrid.setCanAcceptDroppedRecords(true);
		
		layout.addMember(transactGrid);

		return layout;
		
    }

	
}
      I didn't have any problem before I add the showPrintPreviewLine

      Comment

        #4
        Behavior with IE6:
        - Error Javascript (what I said)

        Behavior with Firefox 3.0.5
        - Try to save a Jsp file ?
        Content of the Jsp file :
        Code:
        <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<HTML>
<HEAD>
<%-- page title is driven by main page via the 'title' parameter to this page --%>
<TITLE><%=request.getParameter("title")%></TITLE>
</HEAD>
<%-- body overflow: hidden - suppress page level scrollbars --%>
<!-- onafterprint - supported in IE only -->
<BODY overflow="hidden" onload="pageLoaded()" onafterprint="printed()">

<script>
// document.write out our skin styles file
if (window.parent && window.parent.isc) {
    document.write('<LINK REL="STYLESHEET" TYPE="text/css" HREF=' + 
                   window.parent.isc.Page.getURL("[SKIN]/skin_styles.css")+
                   ">");
}
</script>

<SCRIPT>
function pageLoaded() {
    window.controllerCanvas = '<%=request.getParameter("id")%>';
    parent[controllerCanvas].iframeLoad();
}

function printed() {
    parent[window.controllerCanvas].printComplete();
}

function assignHTML(HTML) {
    getPrintElement().innerHTML = HTML;
}

function getPrintElement() {
    return document.getElementById('printElement');
}

function doPrint(callback) {
    // focus() required for IE - otherwise it prints the top-level window
    focus();
    print();
    
}

</SCRIPT>

<span id='printElement'></span>

</SCRIPT>
</BODY>
</HTML>
        Error with Firefox :
        "parent[ControllerCanvas] is undefined"
        The error appear in the file above that is automatically generated.

        Hope it will help.

        Comment

          #5
          Do you have printFrame.jsp deployed somewhere that it can actually run (eg Tomcat)? Note there's a solution here for PHP as well.

          Comment

            #6
            A quick update: For 7.0 final we'll be removing printFrame.jsp in favor of a static printFrame.html file, which will resolve this issue regardless of how the file is deployed.

            Comment

              #7
              The latest SmartGWT build / SVN does not require a JSP anymore for the printable view.

              Sanjiv

              Comment

                #8
                Ok thank you :)

                Comment

                  #9
                  SVN Trunk cannot print

                  Dear,

                  Using the SVN Trunk (r292), the function "Canvas.showPrintPreview()" do not work any more.

                  See Showcase 'Print Grid' for example.

                  Regards.

                  Alexandre

                  Comment

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