Custom Web Control Onload Event?

Feb 23, 2010

I'm working on custom web control, inherited form label control. Try to run some JavaScript in page load event. But not working! Or any equivalent onload event for label control?

[Code]....

View 3 Replies


Similar Messages:

Can Attach Event Handler To An Event OnInit Or OnLoad

Oct 18, 2010

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 Replies

Web Forms :: How To Raise Event On Usercontrol From Onload Events

Jan 7, 2010

I have a login.ascx control with three controls (LoginName, Password and btnLogin) , I want to rase a click event on this button from .aspx page because some restriction is there so that I am unable to write any code on .ascx page.I am bale to put loginName and password on .ascx by using query string but unale to raise event.

[Code]....

View 1 Replies

C# - Javascript Event Like Window.onload For Subsequent Loads?

Feb 9, 2011

We have a function that changes the iframe height at the window.onload event so we can adjust it to the page contents. The problem is that after clicking in an asp:menu the height its restored to its default and the window.onload event doesnt fire...so we need the event that would fire in subsequent loads (tried window.unload but didnt trigger)

The resize function cant be called on the asp:menu click because the window wouldnt have finished loading so the height calculation would fail...

View 4 Replies

How To Capture The Onload Event Of A Window With Attachment Response

Jan 26, 2010

I have the following download request in javascript:

var exportWindow = window.open('Download.ashx?source=1', '');
exportWindow.onload = function() {
alert('finished');
};

My problem is that the above alert box does not appear. The download.ashx sets up the following response (which will be saved as a csv file), which works fine.

context.Response.ClearContent();
context.Response.ContentType = "application/text";
context.Response.AddHeader("content-disposition", "attachment; filename="" + fileName + """);
context.Response.Write(resultWriter.ToString());
context.Response.Flush();
context.Response.Close();

If I replace the download.ashx with a normal aspx page, then the alert appears. So my question would be: is it possible to know programatically when the dowload.ashx returned with a response?(using FF3)

View 2 Replies

Use OnLoad Event To Check If There Is A Cache File For This Module?

Dec 27, 2010

We are writing a portal and like every portal we store html data in Db fro Modules. So I thought that I can cache each module in files. I use OnLoad event to check if there is a cache file for this Module, use that and else create cache file:

if (!IsPostBack)
{
string Path = AppDomain.CurrentDomain.BaseDirectory + "CacheModules" + ModuleId + ".dat";
if (File.Exists(Path))
{
Controls.Clear();........

View 1 Replies

Web Forms :: Page.ClientScript.RegisterClientScriptBlock Is Not Working OnLoad Event?

Jun 18, 2010

I put following on Page_onload event, I am not sure why it is not working. However when I use with dropdown, it is working fine.

[Code]....

View 13 Replies

Forms Data Controls :: Gridview Onload Event Does Not Work?

Oct 26, 2010

I want to call a javascript function at onload event of gridview..But I am getting Compilation error. How can I do this?

Basically I am using a javascript in .aspx page which have a master page. I want to get the value from javascript in code behind.

View 3 Replies

Web Forms :: How To Stop Body Onload= Event From Firing When User Clicks Server Side Button

Nov 1, 2010

how to stop body onload= event from firing when user clicks server side button .

this is my below code in client side

[code]....

when i clicks server side button it raises body onload function again?

I want to raise this body onload function only when page load not in server side button click.

View 6 Replies

C# - When To Fire A Custom Control Event

Jan 21, 2010

I am creating a custom control. Let's say I'm reinventing the wheel and creating a custom Button control that derives from the UserControl class(only for example)

Well, it of course has a Click event handler. Now my problem is, when do I call this event handler? I know it happens sometime between the Pages OnLoad and OnLoadComplete, but I'm not quite sure what event I can hookup to so that the Click event is raised at the same time as other control events.

View 2 Replies

C# - Event Won't Fire In Custom Control

Oct 12, 2010

I am trying to create a simple custom control where in there is a image button on the control along with a label.

the problem that i am facing is that the image button appears just fine along with the specified properties. But somehow when i click on the image button it does not generate the click event. the page simply refreshes.

[code]....

View 1 Replies

Custom Control Not Rendering After Event?

Jan 26, 2010

I am just playing with custom controls, and have one built that looks like so:

[Code]....

I'm pretty sure its the Rendering / CreateChildren process that I'm not doing right. Problem is I cant find a good example that shows how to rerender your usercontrol when something needs updating.

View 2 Replies

Adding Event To Custom Control?

Jul 10, 2010

I am extending the TextBox class to include CustomValidator along with the TextBox. I have created properties like CSSClass for ErrorMessage, CustomErrormessage for ErrorMessage on failure. But I am not sure how to get server side validation method in the form of tag. Example:

<asp:CustomValidator runat="server" id="custPrimeCheck"
ControlToValidate="txtPrimeNumber"
OnServerValidate="PrimeNumberCheck"
ErrorMessage="Invalid Prime Number" />

PrimeNumberCheck is the method name which is passed as parameter, same way I want to pass method in my custom TextBox for CustomValidator to run on server side.

View 1 Replies

Dynamic Event Handling Within A Custom Control?

Jan 4, 2010

I have a custom control which contains (amongst other things) an imageButton.

I'm adding a handler to the "click" event of the imageButton however when the button is clicked the handler routine is not called. where I am going wrong with this? should I be handling the click event in some other way?

here is my code:

[code]....

View 8 Replies

Web Forms :: Event Handling For Custom Server Control?

Jun 24, 2010

I am creating a webform in which I am having two radio buttons (Yes/No), one textbox, and two lables.

I want to enable and disable the textbox on radio button click Yes and No respectively.

I want to use custom server control for this whole process as we have to use this DLL in other application also.

Being as beginner I got just confused about event handling methods for server controls.

View 3 Replies

C# - Delete Files When Custom Control Is No Longer Used Any Event?

Mar 24, 2011

I have created a custom control which uploaded files to the server . These uploaded files list that is the name of the file and the file path i save in a session and the files i save to a temp directory .

Now, I want to delete these files as well as clear the session when this control is no longer used .How do i find whether the control is no longer used in the page . I should be doing this from the Custom control and not from the Page ?

View 1 Replies

Web Forms :: Changing Custom User Control And Event Handling

Jul 29, 2010

I have a custom ascx user control on my page that includes a dropdownlist. There is an onSelectedIndexChanged event handler that is connected to this dropdownlist. The first time the user selects a value, the page does a postback and the logic executes correctly. However, if the user then goes to change their selection, the event handler does not get triggered.

View 3 Replies

Force An Event Handler To Fire For A Custom Control On Every Postback?

Feb 11, 2011

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:

[code]....

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.

View 1 Replies

How To Write Code On Drag And Drop Event Of Custom Control

Feb 23, 2010

I have created a Web User Control and convert it into Web Custom Control and add it in Tool Box of Visual Studio. When i drag and drop this web custom control from tool box, i want to execute some sql for that web Control. How do i write a code in Web User Control so that it will execute on drag and drop of Web Custom Control prepared from this Web User Control?

View 1 Replies

C# - How To Handle The Click Event Of A Button In A Custom ITemplate Control

Feb 28, 2011

I've created a custom control in ASP.NET for showing a pop-up message box. In my MessageBox class, I have a Content property as ITemplate like the following:

[PersistenceMode(PersistenceMode.InnerProperty)]
[TemplateContainer(typeof(MessageBoxContent))]
[TemplateInstance(TemplateInstance.Single)]
public ITemplate Content { get; set; }

I used my custom control in my page like this:

<cc1:MessageBox ID="MessageBox1" runat="server">
<Content>
<asp:Button Text="Save" runat="server" ID="B_Save" />
</Content>
</cc1:MessageBox>

Even I set the the Content property's TemplateInstance to Single, I still can't have access to the Button control.

All I want to do is to handle the click event of the button. When I assign an event handler to the button control and run the project, it throws a NullReferenceException.

View 1 Replies

Web Forms :: How To Make Page Onload Event In Full Page

Apr 21, 2010

How can I make my page Onload event in Full Pageand how can I exit My web by Button click.I am using visual web developer and vbcode

View 3 Replies

Custom Server Controls :: Click Event Not Firing In Rendered Control

Apr 14, 2010

I have a custom control that renders a button. I'm trying to attach a server click event but it isn't firing. My code is:

protected override void CreateChildControls()
{
btnRangeGo = new Button();
btnRangeGo.CssClass = "divSearchGo";
btnRangeGo.Text = Resources.CORE_Resource.S0C29; // Go
btnRangeGo.Click += new EventHandler(btnRangeGo_Click);
// Tried with no luck:
// this.Controls.Add(btnRangeGo); // Needed so OnClick gets registered
// Page.Controls.Add(btnRangeGo); // Needed so OnClick gets registered
}

private void btnRangeGo_Click(object sender, EventArgs e)
{
int i = 1;
}
OnRender:
btnRangeGo.RenderControl(writer);

View 5 Replies

Custom Server Controls :: Trigger Click Event In Composite Control?

May 10, 2010

My CompositeControl creates dinamically several RadioButtonLists according to the DataSource information. These controls are added to the Controls list and rendered in CreateChildControls event.

I need to create a LinkButton that clear a specific RadioButtonList selection and do a postback, to load the DataSource information again (some selections changes the data that need to be loaded from the database). For each RadioButtonList, I've put a LinkButton and assigned the Click Event to a method inside the same CompositeControl, to do the RadioButtonList cleaning.

Unfortunatelly, the LinkButton doesn't trigger the Click Event. In HTML code, the link has the "onclick" attribute setted with the asp.net event, but when clicked, nothing happens.

View 1 Replies

Custom Server Controls :: Show Control Event In VS Menu Events?

Jul 22, 2010

am creating a custom server control and there are textbox and button.

I want to add event button to let user execute his/her own code.

I mean my event must show in Events menu at VS (like Property)...

the following image show :

View 4 Replies

How To Run The Javascript Function On The Page Onload Event In Content Page Of Master Page

Nov 4, 2010

HOW TO RUN THE JAVASCRIPT FUNCTION ON PAGE ONLOAD EVENT IN CONTENT PAGE OF MASTER PAGE.?

means i have masterpage and the content page of master page namely default.aspx in vb.net

My problem was that .

i wanna run javascript function in Default.aspx and i have called the function

body onload in master page..

when i run my website it shows the error

"" Microsoft JScript Runtime Error : Object Expected ""

View 4 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved