I read this
[URL]
and I was wondering if there's anyone that can explain to me what Prerender should do, for example for a button or a calendar component.
I can't imagine it; can you show me few lines?
i need clear expition for authentication and authorization in .net
View 3 RepliesHow should we use ClientIDMode property that comes with asp.net 4.0?... When i should i use one over the other clientIdModes?
View 1 Repliesi need MVC pattern with sample example....
View 1 RepliesRecently I was asked to express the DI in colloquial explanation.
I answered :
1)I am going to a hotel.I ordered food.The hotel management asks me to clean the plates and
clean the tables.So here i am a client,I am responsible for managing the service (Instantiating,executing,disposing).But DI decouples such tasks so the service consumer no need not worry about controlling the life cycle of the service.
2)He also asked is there any microsoft API follows DI ?.I answered (This was my guess) In WCF you can create a Proxy using ChannelFactory that controls the life time of your factory.
for item (1) he said only 10% is correct
for item(2) he said that is factory pattern not dependency injection.
Actually what went wrong in my explanation (apart from my bad English) ? What is the real answers for those?
I am trying to unable the asp.net so that i can dev on windows azure, unfortunately going through windows features(in win7) to install it, always prompts and error with no explanation whatsoever. its the "an error has occured, some programs may not have been changed sucessfully" or something similar to that.I have tried uninstalling IIS and reinstalling afterwords, and have tried removing WAS.
View 4 RepliesI've been looking on the Internet for a fairly clear explanation of the different methods of registering javascript in an asp.net application. I think I have a basic understating of the difference between registerStartupScript and registerClientScriptBlock (the main difference being where in the form the script is inserted).I'm not sure I understand what the RegisterClientScriptInclude method does or when it is used. From what I can gather, it is used to register an external .js file. Does this then make any and all javascript functions in that file available to the aspx page it was registered on? For example, if it was registered in the onLoad event of a master page, would all pages using that master page be able to use the javascript functions in the .js file? What problems would arise when trying to use document.getElementById in this case, if any? Also, when it is necessary/advantageous to use multiple .js files and register them separately?
View 1 RepliesHregarding to following query:
Use AdventureWorks
Go
ELECT p.ProductID,
piy.ProductID
What does mean ON 1 = 1 in this query??
I am a total newbie in the oAuth area and have set up DotNetOpenAuth to set up an oAuth Service provider. The sample provided in the DotNetOpenAuth download is quite confusing for me...maybe cos i am new to this stuff. There is one default page that creates a database and populates the database. Now I browse to the login.aspx and it asks me to put an openid, actually I want to use DNN (which implements DotNetOpenAuth) and i want to use those credentials on another site which will be the oAuth consumer. Can someone explain how to test the oAuth Service provider in the samples of DotNetOpenAuth?
View 1 RepliesSeems like a basic question but im looking for an article that can give a good solid overview of how a page in asp.net works.
What im looking for in specific is how variables react on postback and stuff like that. For example if I bind an Asp.net control to the page, do I need to rebind it every time the page is refreshed? And what if its a postback, do page variables get preserved across postbacks.
what the two following options in the publish dialog are for when publishing a site? I just required to know in what situation these will be use.
1) "Allow this precompiled site to be updatable"
2) "Used fixed naming and single page assemblies"
3) "Emit Debug information"
4) "Enable strong naming on precompiled assemblies"
explain reasons why the name property of a Repeater control's child controls would be generated differently in an ASP.NET application when it is deployed on different IIS servers?
One some IIS servers the Name is generated using the format:
String.Format("{0}:_ctl{1:00}:{2}", RepeaterControlID, itemIndex, ChildControlID);
e.g.
<input name="Mntc_Software_List:_ctl1:id" id="Mntc_Software_List__ctl1_id" type="hidden" value="1772" />
and on other IIS servers the format is:
String.Format("{0}$ctl{1}${2}", RepeaterControlID, itemIndex, ChildControlID);
e.g.
<input name="Mntc_Software_List$ctl01$id" type="hidden" id="Mntc_Software_List_ctl01_id" value="1772" />
ASP.Net page life cycle events with code example C#
View 1 RepliesI have been led to believe that the best point to bind your controls is the PreRender. As all the controls are ready and this is the last stage before rendering etc. Is this correct or should controls be bound at a different point?
View 2 RepliesWould a call to a database be called if you put the databind method in the PreRender event of a listbox and the listbox was rendered on the screen for example? This is a specific example regarding a listbox, but basically does code in PreRender only get called if the control is rendered on the screen. If this is so, is it good practice to put code into PreRender such as databinding?
View 1 RepliesI have a SiteMap in my project and I want That on the PreRender The SiteMap appear CollapseAll() but I can't do it.
View 3 RepliesDo you know any drawback to add controls to a page on PreRender event?
When deleting a GridView row in the UI (via a LinkButton whose CommandName="Delete"), the view does not automatically refresh and continues to display the deleted row until I take some other action (manually refresh page, navigate away and back again, etc).
In the debugger, I see the row is successfully deleted, and both the RowDeleting and RowDeleted events fire, but the GridView's PreRender event does not fire afterwards (in contrast, that PreRender event does fire when first loading the page, when adding a new row, etc).
I've used GridViews in similar configurations without having this problem, but I don't see obvious differences. It seems the process is aborting before the PreRender event, but no exceptions are being thrown, and stepping off the end of the RowDeleted event in the debugger brings me back to the UI as though the process were completing normally.
where I should look for the trouble or a solution? Other possibly-relevant details: the GridView is bound to a SqlDataSource; the data source does not declare any DeleteCommand; I handle the deletion by calling a stored procedure in the RowCommand handler, after which I rebind the GridView with DataBind(), at which point I can see the GridView's Rows.Count has decreased by one as I'd expect. Everything seems fine through the RowDeleted event, then... nothing!
UPDATE: tried calling the SP to delete in the RowDeleting handler rather than RowCommand handler... made no difference. The row is still deleted but processing terminates without calling the GridView's PreRender, and the deleted row is left on display until some further UI interaction updates the view.
UPDATE2: I'm not even getting the Page's PreRender event, which precedes the control PreRender events. Will continue working backwards to see if I can find where things are halting, since stepping out of the RowDeleted event seems to be the end of the line...
UPDATE3: I've been poking around some more and, although it complicates my code, I was able to get things working by declaring a DeleteCommand in the GridView's SqlDataSource that just does the simple row (record) deletion, and then in the RowDeleted handler calling the additional stuff I had in my stored procedure that needs to happen along with the primary deletion. While it's less convenient having the primary deletion in one place and the related processing in another, at least it's working.
But I don't know what to conclude from this: that a DeleteCommand is needed for proper page life cycle? that one shouldn't do a deletion in a stored procedure in the RowCommand handler? something else? I wish I could identify what, specifically, is broken about my initial attempt...
I want to access the raw HTML code that my ASP.NET System.Web.UI.Page is about to render.
How can i do that? Is there a property or method like System.Web.UI.Page.HTML or something like that.
I know I could loop through the Controls List of the page and get access to all the Literal Controls etc, but I was wondering if there's a direct property or method that can return me the raw html, which I can modify just before rendering the page.
I have a site with about 7-8 tab panels with update panels. On all the other tabs there doesn't seem to be a problem except the newest tab I created outside of the project and then piece by piece brought on.To make a long story short -
Users selected a dropdownlist outside of the panels and based on what they select certain tabs display.
Both inside the selectedchange of that dropdownlist I have -
[Code]....
Which just double checks the dropdown since there is a change if the select portion isnt at the top insert it. I also have in the pre-render of that dropdownlist9 the following -
[Code]....
Which is supposed to put the select into the dropdownmenu. But for just this dropdownmenu for reasons beyond me after the first dropdownlist is changed the select statements are not at the top of dropdownlist9. But on the 2nd change and there after they are inserted.
Really running around circles with this. The microsoft visual studio just seems so odd and unrelievable lately.
I need to dynamically modify the contents of a column in a GridView1 before it is displayed. Basically, I need to convert every 'Environment.NewLine' in a field to a so it displays as a new line on an ASP.NET page. How do I do this?
View 2 RepliesIn my gridview I have fields for inserting a new record in the footer.
In my objectdatasource selecting event if no records came back I bind a single mock row to force the footer to show so they can still add records. Since the row does not contain real data I hide the row.
[Code].....
I am creating Dynamic UserControls with Dynamic AjaxControls. Then I store each of the UserControls in a Collection. On Postback I recall the UserControls in the collection to Re-Create the interface. It works if i only use Standard HTML controls but does NOT work with AJAX controls. I get this error on PostBack Extender controls may not be registered after PreRender. So far I have tried the following:
MyBase.OnPreRender(e) in Page and Usercontrol EnsureChildControls() in the OnInit Added ScriptManager to the MasterPage None of this stuff is working... If I re-create all the controls including the ones inside the usercontrol then i get no error however it takes forever to do a postback as opposed to just recalling the collection of UserControls.
I get this error on postback from using a dynamic created controls, specifically the
Ajax ComboBox. If I use DropDownList instead, then I don't get the error. How to over come this issue? I do need to use theAjax ComboBox because it allow extra properties not available in DropDownListHere is the complete error:Microsoft JScript runtime error: Sys.WebForms.PageRequestManagerServerErrorException: Script controls may not be registered after PreRender.My ToolKitScriptManager resides in the MasterPage.
I 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]....