I have the following code in Page_Init (actually in a function called by Page_Init in response to a __doPostBack call)
System.Web.UI.WebControls.DropDownList ddlGroup = new System.Web.UI.WebControls.DropDownList();
rowString = rowNumber.ToString();
For some reason I can't get the button event to fire...
This is my Accordion:
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I dynamically add the panes and buttons...
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These two should get fired - but they dont:
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I read somewhere that I should add the button to the UpdatePanel
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But when I do I get this error :
The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>).
The AsyncFileUpload control turns green, indicating that the attachment was successfully uploaded, but the designated method for handling the server side UploadedComplete event is never executed.
View 6 RepliesI need a Slider that will only postback when the slider has been moved. Can this be achieved with SliderExtender?
I have a TextBox with autopostback=true, within an updatepanel within a usercontrol. The TextBox is extended by SliderExtender (default settings).
The TextBox's TextChanged event fires perfectly when the slider is moved (MouseUp - standard extender setting). The aspx page is partially posted back, and all is well.
However, if another usercontrol on the same aspx page causes a partial postback, the SliderExtender causes the TextChanged event to be raised - for no aparent reason. This is causing problems.
Is it possible to prevent postback unless the slider has actually been moved?!
I've created a UserControl that is dynamically placed onto my page during the Init event. It populates and works great, but I'm left scratching my head at how to retrieve data from it during a postback.
It's effectively a multipick combobox that is manipulated entirely using clientside JavaScript (I'm using jQuery heavily). Inside the control container element, I render an empty DIV element that contains all of the selected items. As the user selects items, I generate DIVs within that container DIV that includes some markup. Of interest to me on the server side are the contents of a couple of INPUT fields.
After selecting an item, the rendered HTML looks something like:
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I may be completely off track and this may actually be impossible (or a stupid idea). The only alternative I can think of is to emit actual ASP.NET controls and hook the built-in event handlers.
I add linkbutton controls dynamically to a panel, this works fine, but I also add eventhandlers to them like this.. AddHandler mLink.Click, AddressOf mLink_OnClick But when I click the linkbutton links, the event never happend. I have one updatepanel wrapped around some panels. What could be wrong?
View 3 RepliesI am building a web site with visual web developer 2010
I have a class (autoButton) that adds a button to a panel (on Default.aspx) and a handler w/i the same class (classifyEventHandler)
The button appears fine, but when clicked the even doesnt fire, what am I doing wrong?
I tried locating the event handler in default.aspx, but it was not found :P
Imports Microsoft.VisualBasic
Public Class autoButton
Public Sub makeClassifyButton(ByVal theCell As Object)
Dim myButton As New Button
myButton.Text = "classify"
myButton.ID = "b_classify_" + theCell.ID
AddHandler myButton.Click, AddressOf classifyEventHandler
theCell.Controls.Add(myButton)
End Sub
Private Sub classifyEventHandler(ByVal sender As Object, ByVal e As EventArgs)
MsgBox("done?!")
End Sub
End Class
On my page: a Button1, a ListView1, a Panel1 and inside Panel1 an ImageButton1In the ListView1_PreRender-Event the property Panel1.Visible = false or Panel1.Visible = true is set.1. After first loading of the Page Panel.Visible = false ist set in ListView1_PreRender.2. After the postback click on Button1 the criteria for the visibility of Panel1 are evaluated, thus setting in the ListView_PreRender Panel.Visible = true.
View 3 RepliesI am creating nested accordion using the object model and have created buttons in the inner accordion's accordion pane. The buttons look great but issue is that the buttons does not fire thier click event. They just do the postback of the page and ignore the event.
I want to show a pop-upextender on the pre_init event but all my panes are added dynamically so it does not give any rows.
My code
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I have a DropDownList that fires off some server-side databinding in its OnSelectedIndexChanged event.
<asp:DropDownList ID="ddlGroup" runat="server"
AutoPostBack="True" OnSelectedIndexChanged="SelectGroup" />
Elsewhere in the page, some JavaScript opens a popup. When the popup is filled out and submitted, I want to use JavaScript to fire that OnSelectedIndexChanged event in the opener page. I found some other code that does something similar:
if (window.opener != null ) {
var cf = window.opener.document.forms['aspnetForm'];
if (!cf) {
cf = window.opener.document.aspnetForm;
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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.
here is what I'm doing:
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I have a treeview on the left panel and the gridview in the content page. Both the treeview and the gridview bind to the same datasource and have the same functionality. For instance, clicking employer in the treeview and clicking the employer link in the gridview take you to the same page. All I want is when I click the employer link in the gridview, I want the gridview row command event to call the selectednodechanged event of the treeview, so that the treenode for employer has the selected node style and performs the function of hte selectednodechanged. i have tried treeview.nodes[0].select but this does not fire the selectednodechanged event.
View 3 RepliesI have a div runing on server in which i programmatically add images. On post back, id like to get some attributtes from those images, but they are nowhere to be found. What am i doing wrong?
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I have a web page that contains a couple of button controls. The page is pretty simple, just trying to add a record to the DB. When I click the Submit button, every function/procedure that is supposed to be executed does execute except the Button Click Event. I've checked to make sure all occurrencs of the control are named correctly in the code-behind as well as the javascript. I've set the debugger to debug every function/procedure as well and nothing happens. Why this would occur.
View 5 RepliesIn the UserControl I am adding dynamic ImageButtons depending on the condition When the page loads and I click on Edit button I have no problems and btnEdit_Click is fired. But after that (btnEdit id removed and btnSave is added) when I click on btnSave the btnSave_Click event does not fire. What could be the problem?
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I have a small website where I want to display a confirmation dialog after clicking on a button.
When you click the confirmButton the dialog appears. Then you can choose between Yes or No to either continue with the PostBack or to return.
Problem: The first time you get into the site all works fine. But after you click Yes to continue with the PostBack, no click event will be triggered anymore.
Here is some code.
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I've looked all over for a solution to my problem and i haven't come across a solution that works for me, at least i can't figure out how to make them work for me.I am creating a group of rating controls and adding them to a placeholder. I want to retrieve all ratings and update my database after a button clickall worked wonderfully, i thought i was making some real progress but then i noticed i could not get the value on the server side no matter what i tried... i noticed it's overwriting the value on a postback(i am assuming) i tried adding a if not isPostback statement but then it threw a callback error. anyway here is some code:
Sub Page_Load(sender as object, e as eventArgs) Handles Me.Load
For Each DataRow As Row In DataTable
Dim r As New AjaxControltoolkit.Rating
r.MaxRating = "5"
r.CurrentValue = "0"
[code]...
The program is written using dotnetnuke and c#
Im facing the following problem. I have a aspx page (test.aspx) where I have a form what I want to do is when I hit a button on the test.aspx I open another window (getCoordinates.aspx)where I do some things and create some session variables.
When I close the getCoordinates.aspx I want to call the page load of the test.aspx so I can make use of the session variables I created and fill some textboxes
How can you refresh the 'parent' page when you close a 'child' window
i want to add imagebutton to the header of the AccordionPane .when i click on the image button the is no event fire of imagebutton Click.
View 3 RepliesI have searched around but unable to find a solution that will work. I have a link button that is created dynamically during the page load. It is given an ID (obviously). There is a script manager on the page. I have the controls added to a panel in the updatepanel (updatePanel1). There is a dynamic label that is also created with each link button. I can get a response from the linkbutton click event during a postback on the second time clicking the linkbutton, but I am getting a complete postback instead of the asyncpostback for that control. During the creation of the dynamic linkbuttons, I am also creating a dynamic trigger for each button and adding it to the updatePanel1. The Click event is not firing the method without doing a complete page postback.
View 4 RepliesWhat I'm trying to achieve/plan, is whereby a page loads with a set of inputs, e.g. TextBox, Radio List etc. Taking TextBox as an example, there is a button for the user to "Add" another textbox to the page (in the same group), e.g. Member1, Member2, Member3 etc etc.
Two questions:
I could add these with Javascript, however the resultant "save" on postback would not get these inputs? If so, how? The form needs to work without Javascript as well, so postback to dad another control is fine, however if I click the "add" button again, it will only ever add one control.
protected void btnAdd_OnClick(object sender, EventArgs e)
{
holder.Controls.Add(new TextBox { ID = "txtControl1" });
}
I have an aspx page with multiple modal popups. These modal popups are trigger in the page behind code using .Show() and .Hide().
This is what I have in the .aspx page for the particular modal popup under discussion:
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The example below demonstrates the type of calls I am making to the modal popup extenders. Basically using the Datalist item command, the datalist commands are responsible for triggering my modal popups.
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They all work fine after postbacks except the "activityReport" case (the last one). The only difference with this modal popup is that it contains a user control and all the postbacks are happening in the user control. So the problem is that in the last case whenever a postback happens in the user control then the modal popup is close.
1. If I separate the modal popup and place it in a page all by itself and trigger it to .Show() through a button click in the page behind code then the modal popup doesn't close. See below example.
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2. The button click event in the test page looks as follow:
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I have a user control that needs to load a child control when a button is clicked. The trouble is that it has to request the control from another class.
So in the button click event, I call the function to get me my control, and add it to the page, like this:
UserControl ctrl = ExampleDataProvider.GetControl(some params...);
myDetailPane.Controls.Add(ctrl);
The GetControl method looks like:
public static UserControl GetControl(some params...)
{
ExampleDetailPane ctrl = new ExampleDetailPane();
ctrl.Value = "12";
ctrl.Comment = string.Empty;
return ctrl;
}
This isn't working due to the page's lifecycle - the Page_Load of the child control gets fired and its controls are null.
I have a page with 4 fixed Tabs. Tabs 1 and 2 are always in position 1 and 2. However, the users are allowed to create their own tabs and add their own html content. I do this by creating a new tab in codebehind and inserting it into the tabcontainer AFTER the frist 2 and before the last 2 tabs. There could be several of these. EX: "F1 | F2 | U1 | U2 | U3 | F3 | F4" where F is a fixed tab and U is a custom tab.
As long as ALL tabs are visible then everything works fine after postbacks.
Based on user settings I sometimes hide fixed tab 1. Everything loads fine the first time. However, on postback The content on fixed tab 4 (always the last tab) is displayed on the bottom of EVERY tab (fixed or custom). It is still displayed in fixed tab 4.
A little background on the code:
Since the tabs are added dynamically they do not exist on postback and must be re-generated every time. This is done in Page_LoadComplete. I have tried it on PageLoad and it behaves the same way.
If I do not re-generate the pages on post back then the problem goes away - as do the custom tabs.
The only thing I could find was from last year, and was supposedly fixed (http://www.codeplex.com/AjaxControlToolkit/WorkItem/View.aspx?WorkItemId=16321
I'm adding controls from code behind but I dont know how to add an event for each control
X below is from the for loop
Code behind
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What I would like to do is to access libServiceActions CommandArgument in code behind to set db tabel with the values thats passed.