Previously, I have added the file using the fileupload control and then a separate SUBMIT button to push the file to the server... I now want the file immediately uploaded to the server when the individual selects the file they want.... what is the best way to do that?
View 3 RepliesIs there a technical reason for the existence of Page.PreLoad or is this just convenience to have a place where you can neatly place code that always have to be executed before the Load code? Is there a difference between adding code in the PreLoad event handler and adding code at the top of the Load event handler? And what would be a typical scenario where you use PreLoad?
View 2 RepliesHow can I do asp.net fileupload (on change) using javascript, generic handler?
View 1 RepliesUsing vb.net/asp.net 2005.
I have a page books.aspx that has a control named authors.ascx.
Inside the authors control there is a "select" button I want to add some kind of listener or event handler (not sure of the correct terminology) so on the parent page (books.aspx) I can respond to the "select" button being clicked.
I have to pass the authorID from the user control to the parent page.
In my authors.ascx control I just created this event:
[Code]....
Now I need to write the function for SelectAuthorBtnClick and I think add some kind of listener in the parent page to listen and handle the event.
I got an event handler like this, in this event, i wanted to call another button click event. How can I do that?
[Code]....
if (ds.Tables[0].Rows.Count == 0)
i have two frames in a page. the fist one contains buttons the second one the form. i want to call an event from the second one after clicking a button in the first one ,
View 3 RepliesThis event handler is not responding at all to the click event. On click, the pagination numbers disappear and I'm not able to trace it in the debugger because the event handle doesn't even fire so I have no idea what's going on.
[Code]....
I have a Silverlight control on page which has a upload control. the silverlight exposes some events such as
StartUpload() => To start the file upload,
StopUpload() => To stop the file upload if running,
CheckFileStatus() => to check the status of the file upload.
The page has aspx Submit button with onclientclick event and ocClick event.
<asp:Button ID="btn_upload" Text="External Upload" runat="server" OnClientClick="Javascript:StartUpload();"
OnClick="btn_upload_Click" />
When I click on the aspx Submit Button, the file selected in Silverlight control should be uploaded and after the completion of upload, the Server side event should get called.
Found this question on an interview siteGiven the following methods of the ASP .Net Page class, in which of them would you attach an event handler to an event published by a control on the web page?
View 1 Repliesi am writing a web application using visual studio 2008.
if the send button is clicked while running the application, it's event handlers executes twice for reasons i dont know and thereby returns the result two times.
the event handler is below:
[Code]....
The code below creating a button control on my page dynamicly.
I would like to add to the control's Click event a new event handler.
How should I do it?
i'm creating the control on Click-event of one of the pre-defined buttons( btnSubmit) on my the page and
not at the Load event of the page:
[Code]....
My goal is to move as much code from the code behind page to the business logic layer. I'm having trouble with an event handler because the code can't see the method it will call (because the method is on the code behind page and the code in question is in a class in the BLL). CS0103: The name 'ButtonClick' does not exist in the current context (the error) b.Click += new EventHandler(ButtonClick); (the line)
Right now I'm considering to try it by adding the EventHandler from the code behind page after the PlaceHolder has been sent to the code behind page, but I'm wondering if I'm missing a better way. Is there a best practice for how to deal with this? Do I throw in the towel and just let the PlaceHolder be built on the code behind page (where it works fine)?
I have LinkButton as the submit button in the web page. The problem I am facing is it is not calling servr side event handler.
The js function for 'onclientclick' is returning true but the method mapped to 'onclick' is not being called.
I tried putting alert message in onsubmit event also, that is also coming.
How to diagonise the issue? What are the possible reasons for this?
Currently have Main.MasterPage, a MyNewPage.aspx (with master page file) and a use control with buttons. Should I load the events in the MyNewPage.aspx during the Page_load or during the InitializeComponent() ?
Example: MyNewPages.aspx (HTML)
[Code]....
Or Should I do this??
[Code]....
I have a web page where I'm dynamically loading one of a series of user controls. In each user control I call a general-purpose event to inform the web page that data on the user control has changed and/or new data is available. On the user control I define the Event Handler like this: public override event EventHandler DataOut_Handler; and then I force the event to occur like this:
DataOut_Handler(sender, e); On the web page I reload the previously loaded user control and wire up the event handler like this:
protected void Page_Init(object sender, EventArgs e)
{
DataEntryUserControlBase userControl = (DataEntryUserControlBase)LoadUserControl();
if (userControl != null)
userControl.DataOut_Handler += new EventHandler(UserControl_DataOut_Handler);
}
Note: It's "DataEntryUserControlBase" rather than "UserControl" because I constructed an intermediary base class to making casting simpler. Everything seems to work fine but I do have a question: When I step through my code, after the last line in Page_Init is executed I move the mouse cursor over top of userControl.DataOut_Handler but it reads null. The code is working fine but I'm most curious why I don't see any object associated with that item immediately after wiring up the event handler?
Controls.Add(linkButton)
View 4 RepliesI've added Dropdownlist in Gridview at RowDataBound event. The code is:
[Code]....
I have a master page that contains a navigational menu, made up of nested databound repeaters. Buttons are created for the outer-most repeater's items. When the user clicks on one of these buttons, the content page loads and a label within this content page changes to reflect the text from the button that was clicked. In other words - click a button, load the page, change the label on the page to the text on the button. I have tried also changing the initialization on the content page from Page_Load to Page_PreInit to Page_Init, and nothing seems to matter as I'd like to move on in this project! Code follows:
Master Page (Site.Master):
[Code]....
Content Page (BatchView.aspx):
[Code]....
The problem is, whenever a button is clicked, it changes the title of the master page to 'Not Working', which lets me know that the TeamChosen eventhandler is null!
Does anyone have a good vb example of adding an "onClick" event to a button that is dynamically added into a templatefield of a gridview. MSDN just says to use the addhandler statement with no other good info for a 'dynamic' scenario:
[URL]
I have to masterpages for my home page.
1. The first is for the annonymous users which has the login controls. its name is General_Anonymous.master.
2. The second one is for the logged in users which has a logout button and it hasn't the login controls in it. its name is General_LoggedIn.master. in my default.aspx page I wrote the following code
protected void Page_PreInit(object sender, EventArgs e)
{
if (Session["SupId"] == null && Session["CustomerId"] == null)
{
this.MasterPageFile = "~/Masters/General_Anonymous.master";
}
else
{
this.MasterPageFile = "~/Masters/General_LoggedIn.master";
}
}
after the user logs in my website he is redirected to his home page. If he want to return to the home page he uses the home hyperlink which refer to the default.aspx. I think according to my code that when the user comes from his home page he will bring his session with him and when the default.aspx asks for the session value it found the id of whether a customer or supplier and thus it will use the second master page General_LoggedIn.master But my problem is when the user click homepage link the default.aspx uses the 2 masterpages . which means I find the logout button and the login controls . I don't know what is the problem or the error in my code
i've got a weired problem using an event-Handler in a Usercontrol I built. The Question to this is pretty simple. I don't get the "SelectedIndexChanged" Event on one of my ListBoxes which I turned to a Multiselection Dropdownlist with jQuery. It's a simple ListBox which should return the new values and should fire the "SIC" Event right? But it doesn't. I don't even get the new values as I try to change values and then read them. I spent more then 2 days searching for an appropriate answer but didn't find anything. As I tried to build a WebSite using some Usercontrols combined with AJAX I'm thinking about letting the Usercontrols out.
View 3 RepliesI have a table with 100 cells in it (10x10)
In each cell there is a checkbox. On page load, each checkbox is checked depending on records 0-99 from a database. This works fine.
However, I want to be able to update those 100 records in the database by checking or unchecking the checkboxes.
The update process works ok as I have debugged it, but the problem seems to be that if I check a checkbox, that value (true or false) doesn't get passed to the event handler.
This is the button click event handler that I'm running right now to see if the value is being recognised:
[Code]....
If I tick checkbox zero and click the button, it still comes up as false. What I want to happen is that the DB is updated and when the page loads, the checkboxes are repopulated with the new values from the database.
I have a static class (an helper class) which has the responsability to create control and add them to a panel passed by parameter, this method is used by a lot of
View 5 RepliesI have a web part which is going to be a part of pair of connected web parts. For simplicity, I am just describing the consumer web part.
This web part has 10 link buttons on it. And they are rendered in the Render method instead ofCreateChildControls as this webpart will be receiving values based on input from the provider web part. Each Link Button has a text which is decided dynamically based on the input from provider web part.
When I click on any of the Link Buttons, the event handler is triggered but the text on the Link Button shows up as the one set inCreateChildControls. When I trace the code, I see that the CreateChildControls gets called before the event handler (and i think that resets my Link Buttons). How do I get the event handler to show me the dynamic text instead?
Here is the code...
public class consWebPart : Microsoft.SharePoint.WebPartPages.WebPart
{
private bool _error = false;
private LinkButton[] lkDocument = null;
[Code]....
I made a dynamic TextBox and a Dynamic Button.. I would like to add an event on Dynamic Button to change the textbox text when clicked. What I want is when I made TextBox1 text "1" into "2" the TextBox having "2" will become "1". below is my code for page2. Page 1 is just a CheckBoxList consist of items to be passed on page2 DropDownList.
.cs Page2
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
[code]...