I have added some combobox and texboxes in gridview dynamically to provide the data entry like operations.i have fetched and reset the value of these dynamically added controls on button click as ->
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I have a Combobox
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the combobox doesn't have a get_items() method.
How can I populate the ajaxcontroltoolkit through javascript?
i want to bind the records from the DB to ajax combobox dynamically based on the serach criteria. the record count may be around 6000. use ajax combobox and show 10 records at a time. how to do this. i am new to ajax combobox.
View 1 RepliesAnyone else have a problem with setting ListItemHoverCssClass of the ComboBox?
When using firebug it seems that it sets the class attribute of the li elements to "undefined" therefore is this a bug?
The code below when using a traditional ASP.NET DropDownList works perfectly. If a value is not picked (default value still displaying), then the range validator displays the problem. However when I use this same code with an AJAX ComboBox, the RangeValidator
returns false every time, and the message is always displayed. Take a look:
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So every time I press a button to postback, the "** Item is required**" message is displayed. Again, this works just fine with a regular ASP.NET DDL, just not with the ComboBox from the toolkit. I can get a RequiredFieldValidator working with the ComboBox, but I like the post selection behavior of a RangeValidator better.
I changed out a DropDownList with a ComboBox and used the Auqa style exactly and it won't work in an AJAX ModalPopupextender
here's my css : ( total width is 110px )
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Anyone know if there's been a workaround? I can only see the box. The DropDown arrow is not appearing. It works fine outside of an Ajax panel.
I have a usercontrol that uses a callback to update itself. If I add the control to the aspx page everything works fine. However, when i add the control using Page.LoadControl and Control.Add on a Placeholder i get the following error: "The target 'ctl00$ContentPlaceHolder1$ctl00' for the callback could not be found or did not implement ICallbackEventHandler". I tryed assigning the ID of the control also which failed with the same error. I am using asp.net 2.0.
View 11 RepliesBuenos nachos, to be brief, my question is: is it possible to allow users to add new items to a combobox at runtime without having the autopostback property set to true? I understand it needs to postback if a new item is added, but I do not want the box to postback if the user simply selects a different value!
The tag I currently have is below. Without having the autopostback="true", the comboxbox doesn't allow the user to add new items to the box >_<' Any thoughts?
<ajx:ComboBox ID="cbCompany" runat="server" Width="226px" DropDownStyle="DropDown"
OnItemInserted="addCompany" AutoCompleteMode="SuggestAppend">
</ajx:ComboBox>
I know I could add a few more controls and do an easy workaround, just wondering if it is possible to do it this way.
I have the following items bound to my combobox:
Value: 1, Text: SNS
Value: 2, Text: ING
Value: 3, Text: ING
Choosing value 1 results in a SelectedValue of 1
Choosing value 2 results in a SelectedValue of 2
Choosing value 3 results in a SelectedValue of 2
does the combobox has as a disadvantage that the Text has to be unique?
I'm try to add a combobox to my form which i have done and populate it with the infomation i need but i want to stop the user from being able to edit the first 5 character in the textbox part of the combo box( 1 is this possible 2 am i going about it in the right way).
I have 3 columns fro a db to enter ips ie 123.456.7.89 at the start if each number i want (SE1)(SE2)(SE3) which i can do at the momment . So I get in the combobox list 3 items with (SE1)123.456.7.89 OR just (SE1) depending of i a result is returned from the DB. However i don't want the user to be able to edit out the (SE?) part of the sting in the textbox. When editing i've tried used the text change event to try and capture the change and make sure the string.length > 5 , but the event does not fire also when i leave the combobox it it adds to the combox list. If I refersh it goes back to how it should be with only the 3 items.
in aspx i written as follows
<ajaxToolkit:ComboBox ID="cmbAddressAlias" runat="server" DropDownStyle="Simple" AutoCompleteMode="Suggest" CaseSensitive="false" AutoPostBack="true" RenderMode="Inline" Width="170px" CssClass="cmbProvince" OnSelectedIndexChanged="cmbAddressAlias_SelectedIndexChanged"> </ajaxToolkit:ComboBox>
it binding correctly(datasource dynamically binded) and it raises event too while changing index but it is not raising event when we manually clearing the combobox text..if currently combobox having text "ASP" then i manually select that entire text and using del key i am deleting but it is not raising event for me.. when i change index it automatically raising event...i need to raise event while combobox is empty...
i have a really annoying problem in that i need to programmatically create a SQLDatasource and then add it to my asp.net page on the load event. If I do this it all seems to work ok in terms of data binding but for all buttons on the page their postback events stop working?Is this a know issue or must I be doing something wrong?
View 3 RepliesOn a dashboard page I'm loading several controls dynamically; the controls always need to be loaded so there is no if (!Page.IsPostBack) code. The problem though is in that in the code-behind, we are using Request.Form.GetValues and a particular dropdown field's value is always null (presumably because the controls are being cleared and reloaded on a postback) and this is triggering an error later on in the page that expectes a value from this dropdown. I have to use Request.Form.GetValues because the page enables dynamically adding rows (each row containing 5+ HTML inputs) via Javascript.
If I check for postback, then the button event of the control does not fire at all but instead the dashboard page is reloaded, and no controls are loaded at all (i.e. the page is blank).
How do I get around this issue? I need to dynamically load the controls at all times, but I also need to retrieve the values via Request.Form.GetValues.
EDIT
Here's what the code looks like, roughly:
(Client-side HTML)
<table>
<tr>
<td align="center">
<select id="Class1" class="txtboxcomm" name="Class1" runat="server" />
<a href="javascript:classFinder('1')"> Look Up</a>
</td>
</tr>
</table>
<div id="action">
<asp:LinkButton ID="ibtnGetQuote" runat="server" OnClick="ibtnGetQuote_Click" CssClass="getQuote" AccessKey="G">Get Quote</asp:LinkButton>
</div>
(Server-side, in ibtnGetQuote_Click - this is actually a loop since user can append multiple rows; "i" is appended to the word "Class" to find the exact row)
IList<string> classes = this.GetFormValues("Class1");
// This will return null all the time...
private IList<string> GetFormValues(string clientID)
{
String[] values;
values = Request.Form.GetValues(clientID);
if (values == null)
{
Control ctl = FindControl(clientID); // uses built-in FindControl method
values = Request.Form.GetValues(ctl.ClientID);......
The original code was hardcoding the "ctl00$xx$xx" stuff, but the control may or may not be loaded so we cannot guarantee the name the control will get. In fact, I'm not even sure if this will work for all scenarios since only the FIRST control is a server control, the rest are just standard HTML controls so wouldn't have a "ClientID".
I'm going through the tutorial on this page, but when I programmatically add the second AccordionPane, the program went wrong. Following is my code and error message.
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The error message is: Multiple controls with the same ID '_header' were found. FindControl requires that controls have unique IDs.
i am currently working on a webform that has several dynamically populated dropdown lists. this works just fine, however, i have other web controls that require to have a postback..and at the time the page postsback, it reloads my dropdownlists, reseting whatever option i had chosen...
what can i do to resolve this?
Can I dynamically create controls in Silverlight without a postback to the server (even an asynchronous one). Does silverlight drag-n-drop requires postback?
I'm asking this because I've an asp.net application where I dynamically create/delete lots of controls. So after the postback I'm getting error with view state stating that the control tree doesn't match the view state tree.
Can I avoid such problems in Silverlight?
I am dynamically adding controls to a page with an updatepanel. The controls do trigger a post back but their events do not fire.
For example:
LinkButton link =
new
LinkButton();
link.Height = 45;
link.Width = 250;
link.Font.Underline =
link.Font.Bold =
link.ValidationGroup = "NoValidation";
link.Click += new
EventHandler(EventDoesNotFire);
I have set a break point on the Load_Page and in the EventDoesNotFire method. The Load_Page fires, but it never enters the EverDoesNotFire method.
dynamically adding validator callout extender
Button button = new Button();
I have gone through several posts on this forum about adding a linkbutton to an updatepanel dynamically. A lot of them say just give it a unique ID and some say you have to register add an AsyncPostBackTrigger to the triggers collection. I have tried both and neither work. I have this simple test that I created - the code is below - there is nothing else in this project but the code you see so I know nothing else is interfering with it.
I have also seem people complaining that the linkbutton causes the entire page to postback - in my case nothing happens... I have seen people talk about having to add the triggers on the page init however I can't do that - I am dynamically creating menus based on a selection in a listbox... (not in this simple test but in a larger project) I am using Visual web developer express 2010 if that makes any difference.
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As per my need I want to dynamically load accordion pane and inside that I want to load an ascx control. I am attaching my code for reference. But when I run my code it does not create separate pane.
Sample Code part:
protected void Button1_Click(object sender, EventArgs e)
I have a C# web application that dynamically adds user controls to the default page for whatever "mode" the application is in. The problem is that it is not persisting these across postbacks. How do I persist these across postbacks and keep the content of the controls that are in the user control?
For instance, say I have a user control that creates a new tour record. The user clicks on the Tour item from the menu on the default page, it dynamically loads the tours user control. The user then fills out the form in the tours user control and clicks save. This is where the problem happens. When the postback occurs, the web application has no idea that the new tours user control was ever loaded. So, no save takes place because the Save button's click event never even gets fired.
When i use timer control in my website. then the ajax water mark blinking.
View 1 RepliesThis is what i am trying to do with asp.net updatepanel.i have button and a panel inside my updatepanel. when the button inside the updatepanel gets clicked i want to dynamically add new controls such as LinkButtons to my panel1 without full post back. Now when the dynamically added controls gets clicked it causes a full post pack and also not calling "LinkButton1_Click" event. i am sure i am doing something wrong here.
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I'm trying to get something like this to work
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What I'm looking for is to disable the submit button if any of the inner updatepanels are in postback mode. I would also like some way to block that particular panel. I guess for the outer updatepanel, updatemode should be set to conditional, and usechildrenastriggers should be false. What's really bugging me is how to block the panel while a postback is occurring.
In all my tests thus far, the outer updatepanel's updateprogress is triggered, which blocks the whole page.
So I have a page with an UpdatePanel and some controls in there. When I explicitly type/copy+paste the page's address into the address bar, let VS navigate there for me, or follow a link to the page, all of the AJAX works fine. But if I refresh this page, the JS on the page initiates the async postback, but the appropriate event is never called on the server (although Page_Load is) and the client never recieves the markup sent back by the server. This issue seems to be limited to Firefox 3.6 (Gecko build 1/15/2010)(doesn't happen in IE8). I have yet to try on other versions of Firefox.
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