checkbox

问题 I have a DataGrid in Silverlight xaml which contains three columns named Active(checkbox), name(Textcolumn), ID (Textcolumn) and a Save button outside the datagrid. I am getting the following error when I try to loop/iterate through the datagrid rows to get the value of the checkbox using GetCellContent. GetCellContent works fine for first 20 rows but gives the NullReferenceException error after that. Please help. System.NullReferenceException: Object reference not set to an instance of an

问题 I have 10 check boxes in a group box. The top check box labeled "All" checks the other 9 check boxes when checked is true for "All" In the other 9 checkboxes, I have essentially the same code. Here is a sample for two of the check boxes: private void ckDal_Click(object sender, EventArgs e) { if (ckDal.Checked == false) ckAll.Checked = false; } private void ckHou_Click(object sender, EventArgs e) { if (ckHou.Checked == false) ckAll.Checked = false; } I hate repeating the same code. How would I

问题 I've set up my code so that it would require all the fields within the form, but for some reason it's only applying to input types of text, email, and password. So my question is how can I get the radio buttons, select boxes, and checkbox to also be required fields within the form? Here's my code: <form action="" method="post"> <ul id="register"> <li> <input type="text" name="first_name" placeholder="First Name"> </li> <li> <input type="text" name="last_name" placeholder="Last Name"> </li>

问题 I have an app in python django and there's summary page with 5 sections. Lets call them A, B, C, D, E. The first three (A, B, C) are generated automatically without doing anything. while last two (D, E) are generated based on check-box state on a completely different page. I am trying to use jQuery to accomplish this so far i have tried this but it only works if those DIV's are on same page. I tried googling but couldn't find any solution. $(".checkbox").click(function(e){ var checked = $

问题 might be a stupid question but nonetheless here it goes. I am having difficulty converting html code into plain text to be viewed preferably inside a textarea form field, but a div will do. Here is what I have found: html: <div class="box-checkbox-color"> <input type="checkbox" name="Color:_Green" id="sku0001-green" value="Yes" /> <label for="sku0001-green"></label> <div style="display:none;" title="#" class="rawHTML-code-insert">This is where I would like to display raw HTML code BUT have it

问题 My app shows a ListView with a different number of CheckBoxes for each row . The maxium number of CheckBoxes for a row is three. My app looks like this: If the left CheckBox gets checked, all CheckBoxes on the right side should get checked automatically. If the right CheckBox gets unchecked, all CheckBoxes on the left side should get unchecked automatically. I´ll give a little example here: There are three CheckBoxes (cb1, cb2 and cb3) in Row one. cb1 is on the left side, cb2 in the middle

问题 Hi i was wondering if it is possible to validate "checkbox" and "number" . It is really hard to explain what I want but I'll try my best ;). Anyways I have this code: <input type = "checkbox" name = "coffee[]" value = "cappuccino"/>Cappuccino <input type = "number" value = "qty." name = "cappuccino_qty" size = "2"/><br> <input type = "checkbox" name = "coffee[]" value = "espresso"/>Espresso <input type = "number" value = "qty." name = "espresso_qty" size = "2"/><br> ...so on I want the

问题 Coming from this question I am trying to get and set the values for a Legacy Form Field checkbox (MS Word 2013) – without weirdly scrolling/jumping around on the document. For Text Fields this can be performed by myField = ActiveDocument.Bookmarks("myField").Range.Fields(1).Result ' get ActiveDocument.Bookmarks("myField").Range.Fields(1).Result.Text = myValue ' set But this doesn't work for checkboxes. What commands can I take in order to access checkboxes accordingly and without weird

问题 I have a table that I would like to dynamically hide/reveal rows in, based on checkboxes at the top. I would like to do this without jQuery, just vanilla Javascript. I have seen numerous methods on this site and others, but always snippets of code,not complete working examples. I don't want to give each row a separate div name, or whatever, I am assuming there is a way I can do this with a common class for the 3 types of rows I want to hide/reveal. Can anyone please show me a working example

问题 I'm new in AngularJS and trying to achieve check/uncheck all check boxes by clicking "toggle" button, which is styled by bootstrap. Markup: <button id="toggle" class="btn btn-link btn-mini" ng-click="setActionTypesAllCheck()">Check all</button> <div class="row-fluid" ng-repeat="at in actionsQuery.actionTypes"> <div class="checkbox"> <label><input type="checkbox" ng-model="at.checked">{{at.Description}}</label> </div> </div> JavaScript: $scope.setActionTypesAllCheck = function () { $.each(