c# - Telerik PdfViewer - Binding to a PDF source -

-

i've tried samples on telerik's website well, , no avail. have code:

    public icommand emailpopupcmd { get; set; }     private void emailpopup(object sender) {         //todo: pdf viewer pop         selecteddatarow = (datarow)sender;         var window = new window();         window.content = new emailview() { datacontext = this}; //shares same data context         memorystream str = new memorystream();//= new memorystream(pdfasbytearray);//new system.uri(@"pack://application:,,,/resources/testpdf.pdf", system.urikind.relativeorabsolute);         using(filestream fs = file.openread(@"c:\source\ui.mailviewer\resources\testpdf.pdf")) {             str.setlength(fs.length);             fs.read(str.getbuffer(),0, (int)fs.length);         }         attachmentpath = new pdfdocumentsource(str);          if (window.showdialog() == true) {             //from child parent         }     }

c:\source\ui.mailviewer\resources\testpdf.pdf pdf located , bind ui follow:

telerik:radpdfviewer x:name="pdfemailviewer"                           grid.row="2"                           documentsource="{binding attachmentpath,converter={staticresource debugconverter}}">

now using this, object not set instance error. idea why? using debug converter, value of pdf document created null, why happening?

okay other users, found on telerik forums: (telerik forum link)

there 1 additional thing in order make radpdfviewer work in winforms application: should ensure application.current property initialized before user control initialized, example adding code in constructor of user control:

public pdfviewercontrol()  {   if (application.current == null)         new application();    initializecomponent();   }

this worked me in wpf well.


Comments

Post a Comment

Popular posts from this blog

python - TypeError: start must be a integer -

-
i trying draw 5 turtles, getting typeerror on line 25. here code: import turtle wn = turtle.screen() redrose = turtle.turtle() color = input("what background color be?") fillcolor_f = input("what color of rose be?") redrose.hideturtle() redrose.speed(30) redrose.penup() redrose.left(180) redrose.forward(175) redrose.right(90) redrose.forward(30) redrose.right(90) redrose.pendown() def drawrose(red): redrose.color("pink") redrose.fillcolor(fillcolor_f) redrose.fill(true) in range(red): redrose.forward(i) redrose.right(49) in range(5): drawrose(redrose) redrose.penup() redrose.forward(350) redrose.right(144) redrose.pendown() redrose.fill(false) drawrose(50) wn.bgcolor(color) i trying draw 5 roses, produces errors. doing in interactivepython.org. you recursively calling drawrose wrong parameter. on line 23 ( for in range(red): ) expect red integer...
Read more

c# - DevExpress RepositoryItemComboBox BackColor property ignored -

-
i have following code almost works properly; private void cbstatus_drawitem(object sender, listboxdrawitemeventargs e) { string item = e.item string; if (item != null) { switch (item) { case "1": e.appearance.forecolor = color.green; e.appearance.backcolor = color.green; break; case "2": e.appearance.forecolor = color.orange; e.appearance.backcolor = color.orange; break; case "3": e.appearance.forecolor = color.red; e.appearance.backcolor = color.red; break; } } } when dropdown shown, items forecolor correct, backcolor remains whatever backcolor of theme is; i.e. if i've got set dark theme, backcolor dark, cells in gridview, rather being green/orange/red. i've tried setting e.appearance.options.usebackcolor trying set e....
Read more

django - Creating multiple model instances in DRF3 -

-
1) create multiple model instances 1 api call, asked here: how create multiple model instances django rest framework? tried solution named in link, no success. i trying upload multiple files in 1 api call. result: files uploaded (only once overwrote perform_create) 1 instance created (if send 2 files, latter created instance). my code: class fileuploadserializer(serializers.modelserializer): def __init__(self, *args, **kwargs): many = kwargs.pop('many', true) super(fileuploadserializer, self).__init__(many=many, *args, **kwargs) class meta: model = fileupload read_only_fields = ('created', 'datafile', 'owner') class fileuploadviewset(viewsets.modelviewset): queryset = fileupload.objects.all() serializer_class = fileuploadserializer parser_classes = (multipartparser, formparser, ) def perform_create(self, serializer): file_list = self.request.data.getlist('file') ...
Read more