Add Event Handler To Control
Jul 25, 2012
I am creating a web control by addin the html in the code behind, like this:
Code:
Dim sb As New StringBuilder
Dim myDiv As HtmlGenericControl = Me.theContainer
sb.Append("<table width='100%' cellpadding='0' cellspacing='0' style='border:0px;'>" & vbCrLf)
sb.Append(" <tr class='mainRow1'>" & vbCrLf)
sb.Append("<td align='left' style='border:0px solid white;'>Main Menu</td>" & vbCrLf)
[Code] ....
This will generate the html for the table in the codebehind then inject it into the specified DIV element. My question is, if I create a control in this manner, how do i add an event that will fire a method in my codebehind? For example, if i want to create a image button i would do it this way in the code:
Code:
<asp:ImageButton CommandArgument='<%# (Container.DataItem.objectValue) %>'
ID='ImageButton1' runat='server' OnCommand='Button1_Click' ImageUrl='~/images/folder.gif' />
but in the code behind i would do this:
Code:
sb.Append("<input type='image' name='ctl00$ContentPlaceHolder1$importWizard1$folderControl1$folderRepeater$ctl04$ImageButton" & myCounter & "'")
sb.Append(" id='ctl00_ContentPlaceHolder1_importWizard1_folderControl1_folderRepeater_ctl04_ImageButton" & myCounter & "'")
sb.Append(" src='images/folder.gif' style='border-width:0px;' />" & vbCrLf)
But I cant add the OnCommand because it wont be rendered properly.
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Mar 10, 2011
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 ?
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Apr 24, 2010
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.
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[Code]....
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Oct 3, 2010
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Nov 11, 2010
i have a calender control like this
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i want to call the event handler for the dropdownlist - selectedIndexchanged and i have added it also like this
protected void ddlBlist_SelectedIndexChanged(object sender, EventArgs e)
{
}
but this is not getting fire when i am changing the item of the dropdownlist.
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Jun 15, 2010
i try to create dynamic control and have a single event handler to ease the fireevent how do i do it?also can i declare a single event handler to parent control and be use by child control of the same type
in example:
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aa.Control.Add(any anchor)
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Mar 8, 2010
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.
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[Code]....
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Jun 29, 2010
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[Code]....
Or Should I do this??
[Code]....
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Jul 16, 2010
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Apr 12, 2010
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Mar 11, 2010
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[Code]....
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I have got most of this code online, which does not quite work, can something like this be done to produce a button click event to indicate that a built in button on the datapager control has been pressed ?
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Feb 11, 2011
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[code]....
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<asp:Repeater ID="rptrActivites" runat="server" EnableViewState="true">
<ItemTemplate>
<div class="activity">[code]...
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If Not Page.IsPostBack Then
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Jan 26, 2016
I use this code to obtain a selected data from GridView control. I created a user control and reference it to ASPX page. However, for some reason I can not access public methods IndexChanged to retrieve information of selected line.
*
User controls:
*
Public gridRow As GridViewRow
Public Event IndexChanged As GridViewSelectEventHandler
*
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End Sub
*
ASPX page:
*
*
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{
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{
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}
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}
EDIT:
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Jun 8, 2010
Get the DataSource of GridView control in SelectedIndexChanged event handler?
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<ItemTemplate>
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attributeid attributename
1 color
2 size
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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)
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Jan 26, 2010
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 ,
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[Code]....
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