When I write the code for Each HtmlAnchor a in Me.Master.FindControls("link" + i)
AddHandler e.OnServerClick, AddressOf OnClick
end for
I get an error that OnServerClick event is protected and I cannot access it. The question is how do I dynamically add event handlers to HtmlAnchor controls?
Is 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 RepliesControls.Add(linkButton)
View 4 RepliesI am trying to add a radio button click event at runtime.
Radiobutton button = new RadioButton();
button.GroupName = "buttonGroup";
button.OnCheckedChanged = "buttonGroup_OnCheckedChanged"; //I can't do this?
I know I can do this from the markup, but when I try to do this from the code behine, I cant find OnCheckedChanged.
I have a GridView control that contians, among other things, a DropDownList. In this particular case, the DropDownList is in the EmptyDataTemplate, but I suspect I will run into a similar situation when I'm in Data Rows as well.I'm trying to handle the OnSelectedIndexChanged event for the DropDownList and in the .aspx file I have used the declarative syntax to assign the handler OnSelectedIndexChanged="ddlStoreList_SelectedIndexChanged") and have created the handler code to deal with this.
[Code]....
The problem that I'm running into is that the event is not being handled. In other words, when I put a breakpoint in the handler, I find that it is not getting hit when I change the selection of the DropDownList.
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'm dynamically creating a table on my page with rows and controls. It looks like a gridview but it's not (it should've been, but too late now, seriously). I have a first name, last name, date of birth, etc. I want each row to have a button to add rows underneath it. So I create an event handler each time I create a new row and assign it to the click event of a button contained in the row. But it's not getting called.
Is it correct that the event handler doesn't stay established because the buttons are dynically created and are lost when the page posts back?
Code:
ImageButton addDependentButton = new ImageButton();
addDependentButton.ID = ADD_DEPENDENT_BUTTON_ID_BASE + currentSubscriberIDAsString;
addDependentButton.ImageUrl = "/Images/btnAdd.gif";
addDependentButton.Click += new System.Web.UI.ImageClickEventHandler(this.AddDependentButtonByRow_Click);
Control[] addDependentArray = { addDependentButton, addDependentDropDown };
WebControlUtilities.AddMultipleControlCellToRow(currentRow, addDependentArray, Constants.CSS_CLASS_TABLE_TEXT_NORMAL);
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]...
The below shown Tree view are dynamically created link buttons.
These link buttons should be created DYNAMICALLY.
I tried to create dynamically and its working fine for 1 and 2 case.
But I am not able to get 3 case dynamically when i clickon from 2 case.
If I click on Products Link Button it'll display all sub products(i.e, computers, mobiles,...) and
if I click on computers and then only it should display all other sub products like Keyboard, Mouse,...
lly, if I click on Mobiles and then only it should display all other sub products like Nokia, Samsung ,...
etc..
[code]....
I have a checkbox inside a update panel. Based on certain conditions, I set the autopostback property to true and also attach a event handler as below
chkBox.CheckedChanged += new EventHandler(this.ChkBoxChaned_Click);
But when the checkbox is checked/unchecked, autopostback happens but the event handler does not get hit.
I have a control that handles commenting. In this control, I have set a delegate event handler for sending an email.
I then have various types of controls, e.g. blog, articles etc, each of which may or may not have the commenting control added (which is done dynamically with me not knowing the id's), i.e. the commenting control is added outside this control. Each of these controls handles it's emailing differently(hence the event).
What I'm trying to determine, is how to assign the event in the parent control. At the moment, I'm having to recursively search through all the controls on the page until I find the comment control, and set it that way. Example below explains:
COMMENTING CONTROL
public delegate void Commenting_OnSendEmail();
public partial class Commenting : UserControl
{
public Commenting_OnSendEmail OnComment_SendEmail();
private void Page_Load(object sender, EventArgs e)
{
if(OnComment_SendEmail != null)
{
OnComment_SendEmail();
}
}
}
PARENT CONTROL
public partial class Blog : UserControl
{
private void Page_Load(object sender, EventArgs e)
{
Commenting comControl = (Commenting)this.FindControl<Commenting>(this);
if(comControl != null)
{
comCtrol.OnComment_SendEmail += new Commenting_OnSendMail(Blog_Comment_OnSendEmail);
}
}
}
EDIT:
The reason I ask is that if I search from this.Page as the initial control, I am worried about time taken to search down the control tree to find it. Each different type of page would be different in how many control it would have. On some testing, it returns back quite quickly the result.
I have a grid view in Ajax UpdatePanel. In a column of a grid view I have a button call btnAddNewRecord. I need to fire btnAddNewRecord.Click event once I click on that.
How can I do this?
Using 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 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.
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]....
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 want to get the Id of the Anchor tag using FindControl like this HtmlAnchor Anchor = (HtmlAnchor)Master.FindControl("A"); But i cant able to get the htmlanchor Tag ID. I am getting Null Result.
View 3 RepliesIs it possible to add a messagebox to an ASHX Handler? I used a handler to pass data from a Web Service to an internal system and need a messagebox to pop up to ask the user to choose from one option or another.
View 2 RepliesI have added a new handler mapping (Windows Server 2008 R2 64 bit.) with command
"%SystemRoot%"system32inetsrvappcmd.exe set config /section:handlers /+[name='ASPHandler',path='*.asp',modules='IsapiModule',scriptProcessor='%windir%system32inetsrvasp.dll',verb='GET,HEAD,POST',resourceType='File',requireAccess='Script']
This line is inserted into file
C:WindowsSystem32inetsrvconfigapplicationHost.config:
<location path="" overrideMode="Allow">
<system.webServer>
<handlers accessPolicy="Read, Script">[code]....
it can be seen in Handler Mappings window. But I want to add this by script not to do any manual configurations in file.
I understand I need to load my dynmaic control on every postback and preferrably in Page_Init(). But my dyanmic controls are loaded from a dropdownlist selectedindexchanged event handler. Now after any postback, my dynamic controls are gone. How would I force it to load on every postback ?
View 2 Repliesi just learnt how to add the anchor dynamically to mysite.
but i don't know how to set the class for the htmlanchor
below is the code:
[Code]....
the point is I can't find( or missed it,) the htmlAnchor attribute for setting the css class of the anchor.
I've created a database table with a bunch of links I'm going to use in my program. All seems fine, except for the onClick even handler, which doesn't work as a string. Anyone got an idea how I can set it? There's no constructor for EventHandler accepting a string...
View 4 Repliesive a user control with several checkboxes, each control (only check boxes) has its own click even handler:
[Code]....
when the user click one of the checkboxes the even is triggered and some code is run correctly.
on my page the user control has its own mouseclick event, i need both to expose the checkbox click event or propagate it to the user control click
