I need to handle three state checkbox in the following manner based on the first value:
If checkbox in a checked state then It can be only unchecked.
If checkbox in a uncheck state then it can be only checked.
if checkbox in a middle state then it can be only checked.
Can you please suggest on how this can be implemented?
The issue may be resolved via in-built checkbox implementation. That is, using Unchecked, checked and indeterminate events. More info on microsoft.com
to resolve your problème you chould handle tree event and set the attached property
IsThreeState to true,look at the example:
<checkbox IsThreeState="True"
Indeterminate="checkbox_Indeterminate"
Unchecked="checkbox_Unchecked" Checked="checkbox_Checked"
Content="Click me!"/>
Related
I tried to bind a checkBox to an OData field, its type is Edm.Boolean. I can done the binding but it behaves like one-way binding, the chekbox shows the right statement when I ask for the value, but when I change the checkbox from checked to unchecked or vica verse, and save it, it will not update the value of the field.
xml view:
<CheckBox id="Seen"
selected="{= ${Seen} === 'true'}"
text="Seen"
enabled="true" />
However, if I change the value in an input box next to the checkbox it takes effect on the checkbox, but the checkbox can not take effect on the input field...
Input xml:
<Input value="{Seen}" valueLiveUpdate="true" />
Am I missing something?
Thank for any help in advance!
That happens because you are using an expression binding, which works quite similar a
formatter function. On these scenarios, even if your model is set to use 2 way data binding, this particular binding work only one way.
You should apply the binding on the checkbox on the same way you did for the Input.
<CheckBox selected=“{Seen}” />
In my Winforms app, I have a form that contains a datagridview with a checkbox column. If I check one or more checkbox items, then make a change to some other control on the form (outside of the datagridview), the checkboxes become unchecked. Any help would be appreciated. Thanks.
More details: The underlying binding for the checked items is working correctly, as the values are being stored and the checked states are correct when the form reloads. This is just a visual issue.
Furthermore, the checkbox value is never programmatically set to false in the code. False values only come from the binding or from being manually unchecked.
Redesigned the binding and now it works fine. Was previously maintaining a list of selections in the business object and checking checkboxes based on the selections. Now maintaining a "selected" property in the business object and binding appropriately.
Problem manifested as described due to nature of events generated by checkbox editing (apparently). Binding source change event not triggered when clicking the checkbox (since it was not bound) - only occurred after editing complete on another control.
Could you do an "Invalidate()" on the column to see if a redraw changes anything? Without code, we need to divide the problem arbitrarily.
I am unable to fire OnItemClicklistner method on clicking on Checkbox (in my List-view), i have tried following way...
i have set the focusability and clickability to false as follows.
android:focusable="false"
android:clickable="false"
android:focusableInTouchMode="false"
It fires the OnItemClicklistner but doesn't send reference of Checkbox in view parameter. Please help on this.
Please look at Google documentation at CheckBox class.
Checkbox does not have OnItemClicklistener. You may be getting events from a different UI element, hence confusing you. Checkbox has setOnClickListener method for you to use. Remember documentation is there to help you.
I am trying to add a new checkbox into a UI screen for my installer.
So far I have declared the property as seen below:
<Property Id="RS232" Value="1" Secure="yes"/>
And in the UI, my checkbox has been added as:
<Control Id="myNewCheckbox" Type="CheckBox" X="200" Y="170" Text="Generic Driver" Width="130" Height="15" Property="RS232" CheckBoxValue="1"/>
From documentation I have read I am lead to believe that as long as CheckBoxValue and Value are equal i.e 1 in this case, then the checkbox should be checked by default.
There are already existing checkboxes on this same UI and this is true for them, so I do not understand why in my additional case, the checkbox is not active.
Another note to be made is that when I go through the installation process to test the new checkbox, the dialog disappears when I hover over it with a mouse and I am unable to check/uncheck the box.
I first thought that perhaps the Width field for the text was not big enough, but I have tested by expanding this with no results.
Any help is appreciated!
I was wondering how you store a checkbox value in a variable?
I am using WiX Burn with a custom RtfTheme.
For example:
RtfTheme.xml
<Checkbox Name="TestCheckbox" X="-11" Y="-51" Width="246" Height="17" TabStop="yes" FontId="3" HideWhenDisabled="yes">Please select this box</Checkbox>
Bundle.wxs
<Variable Name="TestVariable" Type="numeric" Value="![CDATA[TestCheckbox]]"/>
I want the value of "TestVariable" to change value whenever I select or deselect the checkbox. Any help?
WixStdBA automatically saves the state of all named checkbox controls that appear on the Options page. WixStdBA doesn't expose any other checkbox values.