c# - WPF Custom Control in separate namesapce -


i try make visual c# app, using usercontrol (wpf). default, vs community 2015 c# generates usercontrol in same namespace main program. it's built correctly. i'd separate in it's own namespace possible future reuse. change auto-generated code have usercontrol in separate namespace.

here code

usercontrol

<usercontrol x:class="nstabi2cmemrw.tabi2cmemrw"          xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"          xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"          xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"           xmlns:d="http://schemas.microsoft.com/expression/blend/2008"          xmlns:local="clr-namespace:nstabi2cmemrw"          mc:ignorable="d"           d:designheight="300" d:designwidth="500">      <grid>         <textbox x:name="addrh"/>         <label x:name="addrh_label"/>     </grid>

c# class

using system; using system.collections.generic; using system.linq; using system.text; using system.threading.tasks; using system.windows; using system.windows.controls; using system.windows.data; using system.windows.documents; using system.windows.input; using system.windows.media; using system.windows.media.imaging; using system.windows.navigation; using system.windows.shapes; using wpfapplication1;    // main app namespace  namespace nstabi2cmemrw {     /// <summary>     /// interaction logic tabi2cmemrw.xaml     /// </summary>     public partial class tabi2cmemrw : usercontrol     {         public tabi2cmemrw()         {             //initializecomponent();             ((wpfapplication1.mainwindow)application.current.mainwindow).initializecomponent();  //initializecomponent();         }     } }

main windows xaml

<window x:class="wpfapplication1.mainwindow"     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"     xmlns:local="clr-namespace:wpfapplication1"     xmlns:usercontrol="clr-namespace:nstabi2cmemrw"     mc:ignorable="d"     title="mainwindow" height="649.005" width="620.667" scrollviewer.cancontentscroll="true"> <grid>     <tabcontrol x:name="tabcontrol" margin="0,0,0.4,0.2">         <tabcontrol.bindinggroup>             <bindinggroup/>         </tabcontrol.bindinggroup>         <tabitem x:name="i2cmemreadwrite" header="i2c mem read/write">              <usercontrol:tabi2cmemrw margin="0,0,-0.2,278.2"/>          </tabitem>          <tabitem header="tabitem">         <button x:name="button" content="button" height="100" width="75"/>         </tabitem>      </tabcontrol>  </grid>

designer shows error "object reference not set instance of object" line

<usercontrol:tabi2cmemrw margin="0,0,-0.2,278.2"/>

program compiled fine first tab (where usercontrol should be) blank.

there many things wrong here, cant answer them all. try comenting ((wpfapplication1.mainwindow)application.current.mainwindow).initializecomponent();

and leaving

initializecomponent();

instead in c# class


Comments

Post a Comment

Popular posts from this blog

asynchronous - C# WinSCP .NET assembly: How to upload multiple files asynchronously -

i using winscp .net assembly uploading files. want upload multiple files asynchronous way. have created method works single upload. public class uploadingdata { private sessionoptions _sessionoptions; private session _session; //connection etc private void onconnected() { foreach (var fileinfo in localfileslist) { var task = task.factory.startnew(() => uploadfilesasync(fileinfo)); } } private async task uploadfilesasync(string file) { string remotefilepath = _session.translatelocalpathtoremote(file, @"/", "/test_data_upload"); var uploading = _session.putfiles(file, remotefilepath, false); //when done await task.run(() => thread.sleep(1000)); } } please suggest me correct way. thanks you can use backgroundworker class this: string[] images = new string[50]; foreach (var path in images) { backgroundworker
Read more

aws api gateway - SerializationException in posting new Records via Dynamodb Proxy Service in API -

i getting "__type": "com.amazon.coral.service#serializationexception" as reply in postman & in test console in api gateway trying post record directly dynamodb using api proxy services.. referring aws article - https://aws.amazon.com/blogs/compute/using-amazon-api-gateway-as-a-proxy-for-dynamodb/ here's mapping { "tablename": "tablenamegoeshere", "item": { "id" : "$context.requestid" "eventname" : "$input.path('$.eventname')", "timestamp" : $input.path('$.timestamp'), "answers": "$util.parsejson($input.path('$.answers'))" } } update: did asked ... , worked if try add array of json objects gives me above same error - here's trying now. please - couldnt find on google well #set($inputroot = $input.path('$')) { "tablename": "answer", "item": {
Read more

asp.net - Problems sending emails from forum -

i have been redesigning site has message board, has been written guy looked after site. it has few problems , written in .asp , uses .mdb files database. you can see whole thing here . feel free post if helps, test thing have set using original files , new database. the basic problem when posts message, supposed email sent them, have posted it. when replies, originator supposed message, replier has been posted. i’d have thought @ point in process there should script/file in postmessage.asp? the postmessage.asp page below. <% option explicit %> <!-- #include virtual="common/adovbs.inc" --> <html> <head> <meta http-equiv="content-type" content="text/html; charset=windows-1252"> <meta name="generator" content="microsoft frontpage 4.0"> <meta name="progid" content="frontpage.editor.document"> <title>new page 2</title> <base target="_self"
Read more