This creates multiple check boxes on the form, and this works fine.
However, in the code behind for my button that the user clicks to execute the form, I cannot figure how how to read the values for the checkboxes. I've tried:
foreach (CheckBox cbxDrive
in cbxDrives)
{
}
but cbxDrives is not recognized.
I need to read through all of the checkboxes to see their values, so that the appropriate actions can be performed in the code behind.
I am new to asp.net. I am trying to display some data from a database table using dynamic table in my page. I want to add checkboxes to a field in the database and would like to perform several tasks based on the values checked. The checkboxes are tied with the primary key field of the database. Here is the code snipet :
[Code]....
Now I have a button in my page. The functioanlity which I desire is on clicking that button I should be able to extract the values of checked checkboxes and perform some function.
Does anyone know how to pass values from adynamically created gridview checkboxes to a crystal report?Is it possible? I am using asp.net, vb.net and mssql. Here's my grid minus a few boundfields:
Im basically listing a set of facilities in a datagrid. Like so:b Projectorcb Laptopcb TelevisonIn roomview, a check appears where a facility is availble in a room. This part works fine.The user can then edit the facilities, by clicking on the check beside each facility. When the update button is pushed I need to record the value of the checkbox, however I cant get the value of the checkbox.eres my codebehind:
I'm creating an quiz application which queries the database and extracts the questions and choices. I use dynamically created controls such as a checkbox list and fill the values dynamically. How do I do this? Right now I have these functions:
array_random_init(); this creates a 10 element integer array from 1-20 - extract_question(i): this extracts a question indexed at i in DB, I created the controls and set the appropriate text in this function. - validate_question(i); this is called by button_click and validates the question i according to DB.
I understand I have to recreate the controls in Page_init on postback, but what should it look like? Do I need to add "if IsPostBack" in page_init, or do I create the controls in page_init() and reset their properties in page_load when I use extract_question(i)? Also, I cannot seem to clear the selected boxes on postback, I added page directive "enableviewstate=false" but it doesn't work.
I've dynamically created 3 checkboxes as you can see in the code below. I also wrote an event handler below. When I run the code, the 3 checkboxes show up, but the event handling does not work right. Whenever there is postback from any of the 3 checkboxes, Label1 reflects the state of checkbox #3, no matter if I toggle checkbox #1 or #2. I put the code I have under Page_Init into Page_Load instead, but makes no difference either way.
The bottom line is, I want the event handler to know exactly which of the 3 checkboxes is firing the event so that Label1 can reflect that.
I have found plenty of examples where the checkboxes to be checked are within a datalist, gridview or other datacontrol like that.. but i dont have that setup..
I have individual checkboxes within my page and need to provide a way to check or uncheck them all..
I cant use a checkboxlist because of the layout of the page.. so not sure if it would be easiest with javascript or do it with the checked event for the single check box that will be used..
I know that may not be the best or cleanest way, but is there a better way?
Reason i cant use a checkboxlist for the larger set of checkboxes, is that a few of them will have additional fields that need to be completed if they chose certain checkboxes.. so i have those controls next to the checkbox that they belong with..
I am dynamically adding the checkboxes in calender DayRender event. i need to read them on some other button click event on webpage.I need to read the checked checkboxes.
I need to also add another column (TemplateColumn maybe) of CheckBoxes to this Grid.Do you know how to do that??
I have tried that:
TemplateColumn t = new TemplateColumn(); CheckBox c = new CheckBox(); t.ItemTemplate = (ITemplate)c; NewDg.Columns.Add(t);
I get the following exception trace:
System.InvalidCastException: Unable to cast object of type 'System.Web.UI.WebControls.CheckBox' to type 'System.Web.UI.ITemplate'. at Default2.DataGrid1_ItemDataBound(Object sender, DataGridItemEventArgs e) in c:UserssaherDocumentsTreeTestTreeDemoDefault2.aspx.cs:line 116 at System.Web.UI.WebControls.DataGrid.OnItemDataBound(DataGridItemEventArgs e) at System.Web.UI.WebControls.DataGrid.CreateItem(Int32 itemIndex, Int32 dataSourceIndex, ListItemType itemType, Boolean dataBind, Object dataItem, DataGridColumn[] columns, TableRowCollection rows, PagedDataSource pagedDataSource) at System.Web.UI.WebControls.DataGrid.CreateControlHierarchy(Boolean useDataSource) at System.Web.UI.WebControls.BaseDataList.OnDataBinding(EventArgs e) at System.Web.UI.WebControls.BaseDataList.DataBind() at Default2.BindData() in c:UserssaherDocumentsTreeTestTreeDemoDefault2.aspx.cs:line 44
There it is written that controls should be added in Init event rather than Load event for the added controls to participate in the Postback data processing.But whose Init or Load event ? Page's Init or the containing container's Init event?
This morning I posted a question w.r.t Radio Buttons, but the requirement changed so I'm posing a similar question.
I want to have a checkbox in a datagrid.
Suppose I click on one of the checkboxes and then realize i need to click on another, the screen has to automatically uncheck the previously clicked checkbox and then check the newly clicked checkbox.
In other words I need to clear previously checked checkboxes and check the recently clicked checkbox.
Also, I need to update a label in the page with a value associated with the row of the checked checkbox.
I want to have checkbox in my header and the checkbox in all the first columns,when i check the checkbox of header all the checkboxes of gridvew checked.
I have bound the checkbox field as you all can see above in bold,but I cant see any checkbox,See in fig
When I try to serialize <%: Html.CheckBox("Something", true) %> in jquery (using form.serialize()) I get two checkboxes, one says true, and the other false. I am aware that MVC renders true, false for checkboxes that are true, so if I wasn't coming through javascript, I'd just check for the presence of true, but how do I know if my checkbox is checked after doing form.serialize?
Is it possible to read cookies that created by another application in same browser.. our existing application is based on classic asp where we created cookies nw i want to read that cookies in asp.net application is it possible to read that cookies with same name?
I'm trying to manually create a button and add a Click event handler for it in code. However when the button is clicked the event handler doesn't seem to react on event (or event isn't called).
we tested the code in Visual Studio 2008 and everything worked just as it should. And I'm using Visual Web Developer 2005 XE. So I assume that I'm missing something to be done manually being in VWD 2005 XE, or the problem is in VWD 2005 XE it self.
I have 11 asp.net checkboxes in my asp.net webusercontrol ..
i want when checkbox1 is check thenrest of all checkboxes will be checked and if checkbox is uncheck then rest of all checkboxes will be unchecked how to do it if all my checkboxes are inside webusercontrol panel1.
I got few check box (depend on settings) that created during run time, some time the number of check box is 3, sometime is 5. And the check box ID also change based on the settings.
How can I search for ALL these check box and return its ID? I do not want to use javascript.
i am desigining an application where i m creating checkBox (not checkBoxList) dynamically. There is one master check box that define group if i click that it should click all subCheck box under it.I am using ajax in my application.i am able to generate check box at runtime but not able to find its event here is the code for creating check box and its event.
//This define master check box
CheckBox MstChk = new CheckBox(); MstChk.ID = Str_Header; MstChk.AutoPostBack = true; MstChk.CheckedChanged += new System.EventHandler(MstChk_CheckedChanged);
[code]...
now problem is here when i click on masterCheckBox i am not able to get Evnet MstChk_CheckedChanged but if call DesignUserPrivilegePnl() in page_init instant of Page_Load i am able to get the event but then i get erro object instatnt not set to an instat of object at foreach (Control Child in Parent.Controls)i am googled but still not get the solution hope you people will guide to overcome my error
I hv a filed in db having 60 values. I want them to be displayed as checkbox values on my UI.but i want those checkboxes as 15 values in 1 column.15 in 2nd col.15 in 3rd col.and last 15 in 4th coln. how to do it?
I got a list of customers I thought I would list in a gridview or a repeater with customer html, it gone have paging. I'm gone have a checkbox for each customer in the list. Do you guys have any suggestions on how I should do to keep the checkbox value when I go to page 2-3-4 ect in the paging. I'm thinking a session to store the id of the checked customers. After I'm done setting the values they go to the database.
Do you got any other ideas then the session I'm thinking of?
how i can add checkBox in gridview instead of (alpha or beta ) at tbl.row.add for is_active ?when is_active is true then checkbox.checked = true and else if is_active is false then checkbox.checked = false ??
