c# - WPF Datagrid Superheader -


i using basic wpf datagrid. need add superheader. each superheader has span of 2 columns. also, has dynamically created because number of columns determined based upon data in database. have got this: superheader. problem is, if resize columns, superheader not moving expected. below code: mainwindow.xaml:

 <tabitem header="tab4">                 <stackpanel>                     <grid name="grdsuperheader"/>                     <datagrid name="grdsample" scrollviewer.horizontalscrollbarvisibility="disabled" autogeneratecolumns="false">                     <datagrid.columns>                             <datagridtextcolumn x:name="samplecolumn1" header="column 1"></datagridtextcolumn>                             <datagridtextcolumn x:name="samplecolumn2" header="column 2"></datagridtextcolumn>                             <datagridtextcolumn x:name="samplecolumn3" header="column 3" ></datagridtextcolumn>                             <datagridtextcolumn x:name="samplecolumn4" header="column 4"></datagridtextcolumn>                             <datagridtextcolumn x:name="samplecolumn5" header="column 5"></datagridtextcolumn>                             <datagridtextcolumn x:name="samplecolumn6" header="column 6"></datagridtextcolumn>                         </datagrid.columns>                     <textblock></textblock>                     <textblock></textblock>                     <textblock></textblock>                     <textblock></textblock>                     <textblock></textblock>                 </datagrid>                 <stackpanel horizontalalignment="left" orientation="horizontal">                         <textblock width="{binding elementname=samplecolumn1,path=actualwidth}" text="footer1" margin="5,0,0,0"></textblock>                         <textblock width="{binding elementname=samplecolumn2,path=actualwidth}" text="footer2" margin="5,0,0,0"></textblock>                         <textblock width="{binding elementname=samplecolumn3,path=actualwidth}" text="footer3" margin="5,0,0,0"></textblock>                         <textblock width="{binding elementname=samplecolumn4,path=actualwidth}" text="footer4" margin="5,0,0,0"></textblock>                         <textblock width="{binding elementname=samplecolumn5,path=actualwidth}" text="footer5" margin="5,0,0,0"></textblock>                         <textblock width="{binding elementname=samplecolumn6,path=actualwidth}" text="footer6" margin="5,0,0,0"></textblock>                     </stackpanel>                 </stackpanel>             </tabitem>

mainwindow.xaml.cs:

private void addsuperheader() {     //create columns     (int i= 0;i< grdsample.columns.count;i++)     {         columndefinition col = new columndefinition();         grdsuperheader.columndefinitions.add(col);          var binding = new binding("actualwidth")         {             elementname = "samplecolumn" + i.tostring()         };          col.setbinding(columndefinition.widthproperty, binding);          if(i%2==0)         {               //add header text             textblock txtheader = new textblock();             txtheader.text = "cols["+(i+1).tostring()+"-"+(i+2).tostring()+"]";             txtheader.foreground = new solidcolorbrush(colors.green);             txtheader.horizontalalignment = horizontalalignment.center;             grid.setrow(txtheader, 0);             grid.setcolumn(txtheader, i);             grid.setcolumnspan(txtheader, 2);              grdsuperheader.children.add(txtheader);         }      }  }

what doing wrong?

i think thats problem gridsplitters , binding of actualwidth width. can use following workaround binding.

    columndefinition col = new columndefinition {width = gridlength.auto};     grdsuperheader.columndefinitions.add(col);      var binding = new binding("actualwidth")     {         elementname = "samplecolumn" + i.tostring()     };      col.setbinding(columndefinition.maxwidthproperty, binding);     col.setbinding(columndefinition.minwidthproperty, binding);

bind actalwidth minwidth , maxwidth , set columndefinition width="auto". worked in example.


Comments

Post a Comment

Popular posts from this blog

php - Vagrant up error - Uncaught Reflection Exception: Class DOMDocument does not exist -

i've set bento/ubuntu-16.04 vagrant box using php 5.6, , getting following error quite few times when try , run shell script: "uncaught reflection exception: class domdocument not exist". i've tried adding following top of script (not together), each no success: "sudo apt-get install php5.6-xml", "sudo apt-get install php5-xml", "sudo apt-get install php-dom" i've tried resetting server "sudo service apache2 restart". does have suggestions?
Read more

vue.js - Create hooks for automated testing -

Image
qa guys complained can't automate frontend testing. because our html looks same outside. lazy hack did this <template> <div :role="$options.name"> ... </div> </template> <script> export default { name: 'vmcomponentname' } </script> which takes name script , applies html. in browser get: <div role="vmcomponentname"> ... </div> line :role="$options.name" goes in every component. is there dry er solutions? please share. additional details i'll explain in details looking for. imagine have vmusercreate form creates user. test case can create user . to automatically test without role, have use following selector: .wrapper > .wrapper > .wrapper > .submit-button the test extremely brittle (will break lot). if use roles can use [role="vmusercreateform"] .submit-button selector. many folds less brittle. so basically, i'm ...
Read more

Add new key value to json node in java -

i have json file : { "id":1, "name":"abc", "addressdetails": { "city":"newyork" } } i wanted add 1 more key-value ("pincode" : "414141") node 'addressdetails'. i tried using : objectmapper mapper = new objectmapper(); jsonnode root = mapper.readtree(new file("d://test.json")); objectnode node = mapper.createobjectnode(); node.with("addressdetails").put("pincode", "414141"); but it's not getting added, there way can ? you can try you should modify file path objectmapper mapper = new objectmapper(); objectnode nodes = mapper.readvalue(new file("d:\\test.txt"), objectnode.class); nodes.with("addressdetails").put("pincode", "414141"); mapper.writer().writevalue(new file("d:\\test.txt"), nodes);
Read more