Event Handling Without Delegates?
May 4, 2010why delegates are using in event handling?what is the advantages of using delegates in event handling?
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Similar Messages:
Bind Multiple Delegates To An Event?
Nov 12, 2010[Code]....
How to bind multiple delegates to an event?
Web Forms :: Bind Multiple Delegates To An Event?
Nov 12, 2010Presently i used user control in my total application. i wrote single delegate , single event in to forms like this.
In User Control :
public delegate void onCloseClick();
public event onCloseClick OnCloseClick;
In Form :
In form load i declared --> this.devXToolRibbon1.OnCloseClick += new UBS.Phoenix.WinForm.Common.DevUI.DevXToolRibbon.onCloseClick(devXToolBar1_OnCloseClick);
i implemented event like this...
void devXToolBar1_OnCloseClick()
{
Form.close();
}
i know this much only about delegates & events... when we will bind multiple delegates to an event?
MVC :: Event Handling In MVC?
Jul 15, 2010Im new to MVC. How controls events are handled in MVC (like Textbox_textChanged event in MVC)
View 2 RepliesUser Control Event Handling
Jun 5, 2010i have some problem with my userControl. Pls look below for better understanding. Pic1. The default page. When i click on the links on the left, userControl will load into the placeHolder as in pic2. But when i click on the Clear button that is inside the userControl, instead of clearing the text in the textbox, it load back to the default page show in pic1. Can anyone pls advise me what went wrong?
View 9 RepliesWeb Forms :: Postback Event Handling?
Oct 5, 2010According toMSDN[URL]Postback event handling:If the request is a postback, control event handlers are called. After that, the Validate method of all validator controls is called, which sets the IsValid property of individual validator controls and of the page."It is my understanding that the Validate method of the validtor controls is called after Load but before the control event handlers.The text quoted says its after the control event handlers.
View 1 RepliesWeb Forms :: Event Handling In Framework?
Mar 8, 2010As I am new to .NET framework.I have a doubt in Event handling. For example to handle a button click we write a delegate as private void button1_Click(object sender, EventArgs e)In this function I can change the sender object value means I can do what ever I want to do with Button object.Why this is implemented in this way in Framework.Is this good to do so.
View 1 RepliesPage Postbacks And Event Handling?
Mar 8, 2010how ASP.NET handles page postback and events?
View 4 RepliesDynamic Event Handling Within A Custom Control?
Jan 4, 2010I 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]....
Web Forms :: Event Handling For The Dynamic Controls?
Feb 5, 2010In one of my ASP.NET webform application I want create dynamic controls and add Event handlers for those dynamic controls..For example when I click a button I want to display a list box and I want to add
SelectedIndexChanged event for that list box.I have errors in doing this... Here's the code I tried out... I think there are errors due to my lack of knowledge in postback
[Code]....
[Code]....
DLabel is a existing label control...*** When I click the button I get the ListBox... When I select the Item 1 the page reloads and nothing is displayed in the Label.
Web Forms :: How To Client Side Event Handling
Sep 8, 2010i should handle a event whn my focus chages from one text box to other....[ i should get an error as you are not entered the data(it should accept only numbers) ]
View 10 RepliesC# - Webforms MVP Passive View - Event Handling?
Mar 14, 2010Should the view have nothing event specific in its interface and call the presenter plain methods to handle events and not have any official EventHandlers? For instance
[code]....
My intention is to understand the benefits of each style and not just a blanket answer of which to use. My main goals is clarity and high value testability. Testability overall is important, but I wouldn't sacrifice design simplicity and clarity to be able to add another type of test that doesn't lead to too much gain over the test cases already possible with a simpler design. If a design choice does off more testability include an example (pseudo code is fine) of the type of test it can now offer so I can make my decision if I value that type of extra test enough.
Web Forms :: Event Handling For Dynamic Controls
Jan 19, 2011I have created radiobutton list dynamically in my app'n...can any one tell me how to handle the selectedindexchanged event for the dynamically created radiobuttonlist. I just want to capture the value of radiobuttonlist and store it in the database.
View 1 RepliesWeb Forms :: Dynamic Buttons With Event Handling?
Mar 1, 2010I am not sure how to do this. I have part of it working and I think I understand why it isn't working, I just not sure what I have to do to fix it... I am dynamically placing some data into an ASP:Table from a DataSet. This is all done from the Page_Loud event. I am looping through the dataset by going through the rows no problem to display the data in cells added by rows to the asp:table.
What I am also doing though is adding a button for each row that is to run an Access insert query that adds a record in a log table.I have used the following code to get this to work which it does, most of this is called through functions in the Page_loud event. this is the gist of it:
this is in a loop of the DataSet
for (int i = 0; i < dsResult.Tables[0].Rows.Count - 1; i++)
{
Button btn = new Button();
btn.Text = strDynamicText;
intTID = dsResult.Tables[0].Rows[i].ItemArray[5].ToString();
[Code]....
Here is the problem I am having. The button does display for each row, and the query does execute and run when I press the button. The values being passed in intTID and intUserGroup (are global), are suppose to be different for each row though, and are to insert a unique table ID, and a different group depending on what is in the dataset. Problem is, it is only assigning the last tableID from the result set into the button and will always pass that same ID no matter what button is pressed. This is the same with the intUserGroup. It needs to dynamically have differnent table IDs passed but that's not happening. What do I have to do differently to make sure that when the button is created dynamically it will pass the unique values for each row?
Web Forms :: Event Handling In PreRender Vs Page_Load?
Jun 29, 2010I have a GridView, here I am adding the LinkButtons at runtime to the GridView cells. I am also attacing an click event on these LinkButtons.
The issue is that when I populate the GridView from the Page_load the LinkButton click works, but if I move GridView polulation code in the Page_PreRender event the click event doesn't executes.
Code:
private void Page_PreRender(object sender, System.EventArgs e)
{
//does not fires the Click event of dynamically generated LinkButtons
GridView1.DataSource = getDataTable();
[Code]....
Asp.net Handling Back Button Event After Logout?
Aug 8, 2010In the logout link button click event I have cleared the session variables.I am checking these session variables for null values at each page's load event.If it has the null value redirecting them to the login page.But the problem is whenever I click the browser back button,the page_load event won't get called.For that I have cleared the the browser cache history.
View 2 RepliesC# - Handling Button Click Event Before OnPreInit?
Mar 18, 2010have a data access layer, a business logic layer and a presentation layer (ie. the pages themselves). handle the OnPreInit event and populate collections required for the page. All the data comes from an SQL server database and I do not use caching.I handle a button click event to grab values from a form and insert a new object into the database. The problem is that by the time I handle the click event, the collections have already been populated, so the new item which has been inserted into the database has not been retrieved.What is the accepted solution to this?I could insert the new object directly into the collection and re-bind the GridView, but the SQL query selects only a set of objects and the new object could fall outside of this set.
View 5 RepliesWeb Forms :: Event Handling With HTML And Server Control
Apr 3, 2010one is anchor tag and other asp linkbutton tag
we want to call user defined function on onclick of anchor tag and as well as linkbutton
is it possible?
Web Forms :: Event Handling For Custom Server Control?
Jun 24, 2010I 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.
Handling Browser Close Event And Page Refresh
Nov 16, 2010In our application we need to handle browser close event. When a user directly closes the browser, we should give him an alert message and stop him by directly closing the window based on some conditions. This we have handled through body onunload event. The problem is we are getting the alert message but after showing the alert message the window gets closed.
Is there any way to stop closing the window on click of browser close event?
And also when the page is refreshed, the last performed action is getting fired again.
Event Handling For A Dynamically Added User Control?
Apr 26, 2010I have a user control say SearchVendor.ascx which contains 4 buttons a gridview and another user control. I need to load the control dynamically actually as a modal pop up
I get this code
var uc = Page.LoadControl("~/blah/VendorProductSearch.ascx") as VPSearch;
uc.ShowVPSearch(true);
_tempPlaceHolder.Controls.Add(uc);
it works fine the control gets loaded properly but onclick of any button the second time the control disappears ?
I want the dynamically added control to remain until the user clicks on the cancel button
Web Forms :: Handling Event From Dynamically Generated ImageButtons?
Sep 5, 2010I have a situation here.
review the following code
[Code]....
Now when user clicks on the accept or reject button, there is an error (could not parse server message) however if there is only one instance of both buttons the code works fine.
AJAX :: ModalPopupExtender Server Side Event Handling?
Feb 10, 2010I'm using a ModalPopupExtender in my website, to show "accept/cancel" messages, and catch the user selection at the server side. I put two buttons (ok/cancel) at the panel that will be shown as a modal popup, add them a server side event handler, but it does not fire.
[Code]....
Web Forms :: Changing Custom User Control And Event Handling
Jul 29, 2010I 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 RepliesWeb Forms :: Event Handling Of Dynamically Created Combo Boxes?
Jan 18, 2010I am creating n number of Combo boxes dynamically at run time and adding a Handler of Combo1_SelectedIndexChanged() to the combo boxes.
At run time, When I select an item from one of the Combo boxes, the event fires n times rather than 1.
So for example : If there are 5 combos created, and I select an item from my first combo, the event Combo1_SelectedIndexChanged() , fires 5 times and that is an issue for me. How can I restrict this to run only for the combo that I selected.