checkboxlist

The Exception : Unable to start activity ComponentInfo{com.scytec.datamobile.vd.gui.android/com.scytec.datamobile.vd.gui.android.SelectedList}: java.lang.NullPointerException.. I just want to show checkbox list view and on every check it display "checked", simply but i don't know why this gives me an exception. public class SelectedList extends Activity implements IObserver{ private ListView machine_listview; ArrayAdapter<String> adapter; ArrayList<String> arrayListofMachines; ArrayList<String> arrayListofMachineNumbers; Vector<MDCMachineStatus> machineStatus_vector; Handler handler; private

Yii 2 ActiveForm form field how to implement "select all" option in checkboxlist? <?php $form = ActiveForm::begin([ 'id' => 'form-id', 'type' => ActiveForm::TYPE_HORIZONTAL, 'options' => ['class' => 'well'], ]); ?> <?php echo $form->field($model, 'MY_DESC', ['template' => "{label}\n{input}\n{hint}\n{error}"]) ->label(false) ->checkboxList($mylist, ['separator' => '<hr>']); ?> <?= Html::submitButton('submit', ['class' => 'btn btn-primary']) ?> <?php ActiveForm::end(); ?> 1) Add checkbox to your form like so: echo Html::checkbox(null, false, [ 'label' => 'Check all', 'class' => 'check-all', ]);

In my page I have a CheckBoxList control and I have 7 items on it. I would like to set those 7 items as checked in my Page_load codebihind. my page: <asp:CheckBoxList ID="WeeklyCondition" runat="server"> <asp:ListItem Value="1">Sat</asp:ListItem> <asp:ListItem Value="2">Sun</asp:ListItem> <asp:ListItem Value="3">Mon</asp:ListItem> <asp:ListItem Value="4">Tue</asp:ListItem> <asp:ListItem Value="5">Wed</asp:ListItem> <asp:ListItem Value="6">Thu</asp:ListItem> <asp:ListItem Value="7">Fri</asp:ListItem> </asp:CheckBoxList> Majid If you want to check some of those with some condition, You can use

My need is to 'bind' Dictionary<MyType, bool> to list of checkboxes in asp.net mvc. I'm confused about how to accomplish that. Could anyone help me? Assuming that MyType has a string property named Name from which you will get the name of the checkbox. Note that I've changed this to preface it with MyType so we can easily distinguish it on the server. You may not need this step if you have another way to determine which fields are the checkboxes. <% foreach (var pair in model.ChecboxDictionary) { %> <%= Html.CheckBox( "MyType." + pair.Key.Name, pair.Value ) %> <% } %> Controller (this uses

I have a asp.net checkbox list bound to a linq to sql datasource and when I check the item count of my CheckBoxList on the page load event it is 0. I want to be able to set the selected items on my checkboxlist here but cannot. The datasource's selected event fires after the page load. If this is the case, how can I set the selected items on my list? If I set the SelectedValue to a value it only displays the last value as selected instead of all the values which are selected. How can I select multiple values in my checkboxlist in the pageload event? I know this is an old post but I had the

Ok, so I want to populate/bind some data to a checkboxlist but cannot seem to binf the right values? I want to populate it with the information from a ROW, not the whole column which is what's happening to me. Here's some code anyways to show you what the problem is. This is the code in the xaml <form id="form1" runat="server"> <div> <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionString %>" SelectCommand="SELECT [Option1], [Option2], [Option3] FROM [Questions] WHERE ([QuestionID] = @QuestionID)"> <SelectParameters> <asp:Parameter