we are using wpf, want to select templated checkbox of datagrid on space bar press when an item get selected in the datagrid. Kindly help me to achieve the same.
Any suggestion will highly appreciated. Thanks
set IsTabStop=True property of the checkbox and thus the checkbox will be selected and deselected on hitting spacebar.Hope this will help.
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i have customed a wpf combobox with a datagrid in it.
After you click the toggle button of the combobox, it will open the dropdown popup and show the datagrid like the image below.
cilck the toggle buttom to show the whole result
Now my question is why the first item in the datagrid in the dropdown popup is not selected?And if after i press the down arrow key, it will select the second(like the image below press the down arrow key right after the dropdown shows) item which makes me fell that the first item is somehow selected but the highlight background is not shown.
Is this about the focus or anything else? Really no idea here , Thanks in advance.
Hi in vaadin combobox i have only one item added which is in select by default.
So now there is no need in drop down option.
Is there any way to disable dropdown option in combobox?
Regards,
Vignesh
You can try setting the combobox to read-only or disabled if it only has one option. combobox.setReadOnly(true) will make it look like a label while combobox.setEnabled(false) will grey it out and disable the dropdown.
Well, what do you want to show instead? Just a Label? Then check if the container-size you add to the combobox is 1 and show a Label with the only "option" instead.
Is it possible to turn off the selected row highlighting when a user clicks another control in the window?
Thanks in advance.
You could set the SelectedIndex to -1 in the LostFocus event, thus losing the selected item and removing the highlight.
I'm wondering if I can make fake sections in the popup menu:
The rule would be, if the 5th character of the displayed item is different from the 5th char of the previous item in the menu, it has to be highlighted
What do you think?
Thanks!
To achieve this would be a hack.
Normally the items that appear in the popup part of a combo box will be an instantiated data template, and each gets its own data item and has no clue or knowledge of the other items in the list, so you couldn't use a converter or anything else to achieve this behavior.
What you could do though is inject (attach) your own control into the popup part of the combo box, and take over the rendering of the data items. How you do this will depend upon which combo box you are using (i.e. MS or some other vendor's) and would be a whole new question.
Would that be easier if I were to create my own combobox as follow:
a TextBox associated with a Button that when pushed would popup a datagrid in which I could implement this conditional formatting?
When I selected some item in combobox and then I'm trying to select another item in same combobox, I can see only one item - those which is selected right now. I believe that happens because of autocompletion. Does anybody know how I can disable it or something. I need to see all values on each click, regardless if something was selected already or not.
Add triggerAction:'all' to your config.
better add disableKeyFilter:'true' to your combo box