checkbox

问题 Here's the scenario. I have checkbox (Name:"Check All" ID:chkItems) and datagridview . And when I click on this checkbox, all checkboxes on the datagridview will also be checked. I've also added the checkbox column on the grid. DataGridViewCheckBoxColumn CheckboxColumn = new DataGridViewCheckBoxColumn(); CheckBox chk = new CheckBox(); CheckboxColumn.Width = 20; GridView1.Columns.Add(CheckboxColumn); Here is the code behind of the checkbox. There is a problem on the row.Cell private void

问题 I'm changing checkbox status this way: $(this).attr("checked", 'checked'); After this I want to receive checkbox status, but I got this: $(this).attr('checked'): "checked" $(this).is(':checked'): false How this can be? P.S. Maybe I'm not correctly changing checkbox status via jQuery? 回答1: The proper way is $(this).prop('checked') to return the boolean property instead of the attribute (which is a a string). Using .prop() you can also set the checked state: $(this).prop('checked', true_or

问题 I'm currently developing a site that uses the :checked variable to apply rules to the CSS. I've got a checkbox input that when triggered, should accomplish two things. The first thing it should do is expand a div from a height of 0 to 200 when checked, and back to 0 when unchecked. I had no problems with triggering that first task. The second thing that should be accomplished upon checking the box, is a transform: rotate(45deg) of a div with a " +" in it that should rotate 45 degrees into an

问题 I would like to have an application where a user will enter data for arbitrary individuals. each individual will have a choice of a maximum of three of six options. I want help on how to force a maximum of three choices using jquery on any indivual. here is a sample code <div id="subscriber_1"> <input type=checkbox name=national> <input type=checkbox name=international> <input type=checkbox name=business> <input type=checkbox name=entertainment> <input type=checkbox name=religion> <input type

问题 I am trying using several asp.net checkboxes on a page, disabling them accordingly. <asp:CheckBox ID='chkMenuItem' runat='server' CssClass='HiddenText' Text='Test' onclick='<%#String.Format("checkChild({0});", Eval("id")) %>' /> on javascript, I am using the following code function checkChild(id) { for (i = 0; i < $("input[id*=hdnParentMenuItemID]").length; i++) { if ($('input[id*=hdnParentMenuItemID]')[i].value.split(':')[0] == id) { var childID = $('input[id*=hdnParentMenuItemID]')[i].value

问题 I try to find how to assign a bool to a checkbox. I want that my checkbox.checked value refresh automatically when my bool data change. I know that for ComboBox there are the DataSource attribute that make it with a list but I am not able to find the equivalent with checkbox. I try with the checkBox.DataBindings but it does not seem to work.On the other hand I don't really know what mean the third attribute. checkBox.DataBindings.Add("Checked", DisableBugWatcher, "check"); I need that because

问题 I have a form with 2 fields a dropdownlist and a checkbox. I have everything working correctly but i can not for some reason obtain the value of a checkbox if it is checked this is my code.. [HttpPost] public ActionResult view(string pick) { switch (pick) { case "Deny": // capture checkbox value here break; case "Accept": // capture checkbox value here break; } return View(); } This is my view @using (Html.BeginForm("view", "grouprequest", FormMethod.Post, new {})) { @Html.DropDownList("pick"

问题 I use: CheckboxGroup cg = new CheckboxGroup(); Checkbox c1 = new Checkbox("A", false, cg); Checkbox c2 = new Checkbox("B", false, cg); Checkbox c3 = new Checkbox("C", true, cg); To create a group of three checkboxes. Now, I want to check which one of them is checked. I use: if (c1.isSelected()) { } but this gives The method isSelected() is undefined for the type Checkbox ... Recommended solution is add cast to c1, I do so and it gives Cannot cast from Checkbox to AbstractButton ... Again, how

问题 I am using Visual Studio 6.0 (VC++ with MFC) in Windows XP platform. I am trying to create a group box with the title of the group box as a check box. My intention is this: If the check box is enabled, the controls inside the group box should be enabled; or else disabled. Is this possible to accomplish? If yes, please give me some directions. Thanks. 回答1: There are a few things you can try, depending on how true you want to stay to your idea and how much work you are prepared to put into the

问题 I'm making a DataGridView with a series of Checkboxes in it with the same labels horizontally and vertically. Any labels that are the same, the checkboxes will be inactive, and I only want one of the two "checks" for each combination to be valid. The following screenshot shows what I have: Anything that's checked on the lower half, I want UN-checked on the upper. So if [quux, spam] (or [7, 8] for zero-based co-ordinates) is checked, I want [spam, quux] ([8, 7]) un-checked. What I have so far