WPF DataGrid window resize does not resize DataGridColumns -

-

i have wpf datagrid (from wpftoolkit package) following in application.

<controls:datagrid>             <controls:datagrid.columns>                 <controls:datagridtextcolumn width="1*" binding="{binding path=column1}" header="column 1" />                 <controls:datagridtextcolumn width="1*" binding="{binding path=column2}" header="column 2" />                 <controls:datagridtextcolumn width="1*" binding="{binding path=column3}" header="column 3" />     </controls:datagrid.columns> </controls:datagrid>

the column width should automatically adjusted such 3 columns fill width of grid, set width="1*" on every column. encountered 2 problems approach.

  1. when itemssource of datagrid null or empty list, columns won't size fit width of grid have fixed width of 20 pixel. please see following picture: http://img169.imageshack.us/img169/3139/initialcolumnwidth.png
  2. when maximize application window, columns won't adapt size keep initial size. see following picture: http://img88.imageshack.us/img88/9362/columnwidthaftermaximiz.png
  3. when resize application window mouse, columns won't resize.

i able solve problem #3 deriving sub class datagrid , override datagrid's onrendersizechanged method follows.

protected override void onrendersizechanged(sizechangedinfo sizeinfo) {     base.onrendersizechanged(sizeinfo);     foreach (var column in columns)     {         var tmp = column.getvalue(datagridcolumn.widthproperty);         column.clearvalue(datagridcolumn.widthproperty);         column.setvalue(datagridcolumn.widthproperty, tmp);     } }

unfortunately not solve problems #1 , #2. how can rid of them?

i have same problem instead of listening rendersizechanged, listened sizechanged event , accounts of situations.

datagrid.sizechanged += (sender_, arg_) =>         {           foreach (var datagridcolumn in datagrid.columns)           {             datagridlength datagridlength = datagridcolumn.width;             datagridcolumn.clearvalue(datagridcolumn.widthproperty);             datagridcolumn.width = datagridlength;           }         };

Comments

Post a Comment

Popular posts from this blog

javascript - Enclosure Memory Copies -

-
function myclass() { //lots , lots of vars , code here. this.bar = function() { //do numerous enclosed myclass vars } this.foo = function() { alert('hello'); //don't enclosed variables. } } each instance of myclass gets own copy of bar , foo, why prototyped methods use less memory. however, know more memory use of inner methods. it seems obvious me (1) below must true. agree? not distinct myclass instances have own distinct copies of bar, must have own distinct copies of myclass enclosure. (or else how bar method keep myclass variables straight on per instance basis?) now (2) question i'm after. since inner foo method doesn't use in myclass enclosure natural qustion is: javascript smart enough not keep myclass enclosure in memory use of foo? this depend entirely on implementation not language. naive implementations keep far more around others. answer true e.g. v8 (chrome's js engine) may not true spider...
Read more

php - Replacing tags in braces, even nested tags, with regex -

-
example preg_replace('/\{[a-za-z.,\(\)0-9]+\}/', 'replaced', 'lorem ipsum dolor sit {tag1({tag2()})}, consectetur adipiscing elit.'); the result: lorem ipsum dolor sit {tag1(replaced)}, consectetur adipiscing elit. question as can see "tag2" has been replaced, want replace "tag1" know how can this? (in cases might this: {tag1({tag2({tag3()})})}) , on.) btw using preg_replace_callback, easier show preg_replace here site can test code: http://www.spaweditor.com/scripts/regex/index.php you need add curly braces character set. here's pattern used: /\{[a-za-z.,\(\)\{\}0-9]+\}/ and here result: "lorem ipsum dolor sit replaced, consectetur adipiscing elit."
Read more