Web Forms :: Passing A Message Back?
Jun 14, 2010
I've got a page (menu.aspx) that contain a ListView, within the ListView is a user control which is just a GridView of items related to those in the listview. Now the overall page is linked to a master page (Master.admin) that has a simple Literal control that I use to display messages, etc.
What I need to be able to do is if I update, delete, etc something from the Gridview (user control), I would like it to display what ever message I send to the Literal control
I can do it from the actual ListView itself by doing somethihg like ((Master_Admin) Master).Text +=
"My message";
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Sep 10, 2010
How do I pass the value from my menu item to my sql in the back code? Here's what I have so far.
[Code]....
and I need it passed to the ScheduleID so that it reloads the page with the new value parameter
[Code]....
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Apr 28, 2010
I am using ASP.NET 2.0 with C#(No AJAX) in my project. In a particular web page, when the a button is clicked, some server intensive C# code runs before the same page is displayed again with the results. While code execution happens on the server in response to Button_Click event, a blank white page is shown to user on his browser in between post backs. How do i show a message in this case, that the processing is still going on and ask the user to wait? I have used javascript to show a message on page unload. But this message is also erased when the page is posted back to the server and the user sees a blank white page on his browser. How do i avoid this white page? Is there a way to show a message in the blank white page? How do i show a processing Message while the page is loading upon on Post Backs to the same Page.
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May 28, 2010
In my application I have to use such like on clicking back button of the browser the current page should be there. it should not navigate to the previous one...Also there should appear a alert box which will prompt message of fear of losing some data.........
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Jun 5, 2013
I am running one application where one gridview is there when i am deleting any data there it shows one message for deleting.
for message i used this code:
ClientScript.RegisterStartupScript(this.GetType(), "ShowMessage", string.Format("<script type='text/javascript'>alert('{0}')</script>", "this row is deleted"));
after that i am going to some other page ,after going other page when i click on back button in browser it is coming in the previous page but the message which poped up before again getting popup.
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Sep 23, 2010
I have following situation - I am pasing user info object from Controller to View. It contains GUID UserID, which i dont want to be seen on page. So I removed every Html.LabelFor(model => model.UserID), Html.TextBoxFor(model => model.UserID) etc... from generated View source. And because of this when Html.BeginForm() returns that object back to Controller all values is there but UserID is lost??
If I leave Html.LabelFor(model => model.UserID), Html.TextBoxFor(model => model.UserID) etc.. in View everything is fine. But I dont want to show UserID? Where is the problem here?
<%= Html.LabelFor(model => model.C__User_Id) %>
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Oct 6, 2010
I've been going at this for several hours and I simply cannot find the solution.
I want to get some data from my user. So first, I use a controller to create a view which receives a Model:
[code]...
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Apr 28, 2010
If my web method throws an exception, what is the best practice for passing that exception to the client?
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Aug 31, 2010
(I think) with using a data bound Custom Control on the server to get hold of my data (it will be part of a larger dataset) and to ultimately pass updates to the database. The bit I'm researching at the moment is passing that data to and from the client.One way to pass the data to the client is to use JSON within the Pageload event to construct a set of Javascript objects (one per row in the data). Is that the best way, or am I missing something?
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Mar 23, 2011
I am working on an MVC application and I have an index view where I pass model from controller to index view. The index action has no parameters. Now On view I have a jquery calendar. I want to change all the data on view when a date is selected. do I need to use different action method for this as current action method doesn't have parameter. or I can use same ?
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Jan 3, 2010
I am trying to work out the best way of dealing with a mailinglist class I have written. I got a simple form on the page where people can add their email address. Depending on which page they add their email address they join a differnet mailinglist. So from the form I have 2 values passed to the DAL {mailinglistID} and {email} - Various checks are done in the DAL, such as checking if email exists, checking if email exists in that mailing list etc etc.
I would like to be able to present the status codes on the page, so in the DAL I return a number value and from the BLL return a string depending on the number value. DAL returns 1, means email exists in mailing list, BLL see's the 1 and returns "email exists" to the page.
I have no idea if this is the right way of doing it or not - the (problem or question) is that in the content page I am checking the if the returned string is "" or has a value, and presenting the message in a visable div.
Is this the best way to do this, or should the status value be converted to a message on the code behind of the content page.
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Apr 21, 2010
I am developing an application that will have 200+ sessions at any given time. I am also relatively new at asp.net development. This application will be hosted on a remote server along with its SQL Server 2008 database. Each session will constantly use SQL select, update, insert, and delete commands. Do you think it would matter if I used server-side logic to perform all the SQL commands, passing parameters back and fourth? Or should I do some more research on client-side database manipulation? Would it be too much load if i used strictly server-side?
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Mar 11, 2011
I have a page with a partialview on it which is a list of items. I have a button on it which shows the next 5 items.
This is done via ajax:-
[code]...
My question is that I need the 'page' variable to increment each time someone presses the form button which is contained within the partialview.
How do I keep track of that variable?
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Mar 3, 2010
I have an Send.aspx page that has an uploadify control on it. Upload.ashx handles the file upload.I am adding a file record to a sql database in the Upload.ashx file and I need to get the ID of that record back from Upload.aspx when it is done.Can't get it working with Sessions. =( Something to do with an Adobe bug?
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<script type="text/javascript">
// <![CDATA[
var contestID = $('[id$=HiddenFieldContestID]').val();[code]...
This took a while for me to figure out. But in retrospect it is extremely simple. For this reason, I mad a video tutorial to help newcomers get started quickly and understand how this awesome control works.
Video Tutorial from start to finish:
http://casonclagg.com/articles/6/video-tutorial-uploadify-asp-net-c-sharp.aspx
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Feb 3, 2010
I have an asp.net application with separate classes for business logic and database interaction and then of course the UI. I am building a form to add a widget to a widget list table in the database. My UI collects the information and submits it to the business class. I'm going to write the business class to first double check that the widget has a name (I know I should do this in UI with validation, and I will, but this is just in case validation is forgotten) and if it does, go ahead and send the information to the database class. The database class will then attempt to write the info to the correct table using a try catch finally block. Any errors caught here are logged and then rethrown so I can inform the user. So, knowing that my database class may rethrow an error, my business class code will also be written in a try catch finally block.
So at this point I have a number of possible outcomes that I want to inform the user via the UI:
1) Everything was fine and the widget was added.
2) Something happened with the database write and the user should try again later.
3) The user forgot to name the widget.
My question is: should I write my UI in a try catch block and then throw a custom Exception with an Exception.Message in the business layer if anything goes wrong, or just have my business logic return a string that is the message? I'll want to know if the process was successful or not, because I'll want to format the actual message differently, so I'd have to use if...elseif to determine if the message was bad or not.
It seems like throwing a custom Exception in the business layer may be a good way to tell the UI something bad happened. If the UI doesn't catch anything then of course the operation was successful. Then again throwing an exception for missing data seems a bit hefty.
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Mar 2, 2011
When the user clicks the submit button on a form I want to return a success / failure message to the user and i'm wondering what the best way to send the message back to the user is.
For example on a login form if the user enters an incorrect password i'd want the view to reload with a message telling them that login failed. Or on an update form the original view they had would show up with a message saying update was successful.
My idea is to have a few partial views or HTML helpers that look for a ViewBag property like "ErrorMessage" or "SuccessMessage" and conditionally show themselves when these properties have a value. These components could be added to the _Layout or manually each form where they are required.
Edit
I have since found out that the ValidationSummary method takes a parameter of whether to exclude property errors which means you can use it to show when login / registration has failed. But there seems to be a bug where the validation summary is still generated even if there are no errors.
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Jan 24, 2010
I was wondering how i could implement a message passing facility through a social networking website i am making. Instead of creating it all from the start, is there a much more simple approach i could possibly take?
I quite like the way facebook does it, how is this done?
I am ok with AJAX but would prefer something really simple not to the extent of adding emoticons etc.
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May 25, 2010
This is what I have implemented, for further code, how to send the text of the text box to the server to store in variable or database without post back? It can be done by using Ajax and update plane, but I would like to implement it using a JavaScript script.
<div id="CommentID" style=" width:30%; height:30%">
<asp:Button ID="Button1" runat="server"
Text="Comment"
OnClientClick="visibleDiv('id1'); return false;" />
<div id="id1" runat="server" style="visibility: hidden; background-color:Green; width:100%; height:100%">
<asp:TextBox ID="TextBox1" runat="server"
AutoCompleteType="Disabled" Rows="3"
TextMode="MultiLine" Width="98%">
</asp:TextBox>
<asp:Button ID="Button2" runat="server"
Text="Post"
onclick="Button2_Click" />
<asp:Button ID="Button3" runat="server"
Text="Cancel"
OnClientClick="visibleDiv('id1'); return false;" />
</div>
</div>
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Feb 9, 2010
I'm dynamically binding tables and sub tables using nested listviews. On the client side I have a piece of jQuery that is toggling the visiblity of TRs witin the tables in order to provide a group expand / contract view option.
On postback I'm obviously loosing my class changes that I have applied via jQuery. I'm wondering what the best approach to maintaining these client side class changes is? I've considered creating a hidden input control per table to store the indexes of the visible TRs at the time of expanding them. The intention being to then look for the indexes during postback / rebinding and add the visible classes to each corresponding element.
Is there a better approach or some native method of passing back the client side style / class change to the server during postbacks?
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Jun 9, 2010
I'd like to get the message number and severity level information from SQL Server upon execution of an erroneous query.
For example, when a user attempts to delete a row being referenced by another record, and the cascade relationship is "no action", I'd like the application to be able to check for error message 547 ("The DELETE statement conflicted with the REFERENCE constraint...") and return a user friendly and localized message to the user.When running such a query directly on SQL Server, the following message is printed:
Msg 547, Level 16, State 0, Line 1
<Error message...>
In an Asp.Net app is this information available in an event handler parameter or elsewhere?
Also, I don't suppose anyone knows where I can find a definitive reference of SQL Server message numbers?
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Mar 26, 2011
I have an application that interact with a SMS gateway and after successful delivery of message to my application i will like to acknowledge them by sending HTTP 200 Response to the Gateway, how can I do that suing asp.net. I am thinking of using Response Headers parameter to do that.
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Feb 22, 2011
Using Vb.Net 2003 Asp.Net 1.1
I have a dynamic data bound drop down list, when the user selects thier selected item I have to use the autopostback feature.
Problem is: when the page comes back it is at the top of the page not where i have the control.
I don't really need it to focus back on the dropdownlist but to scroll to it, I want to do it in the code behind.
Any "New" ways to do it, I mean new as in code from like 2010 instead of old code from the early days.
I really don't want to use Page.Register new Script...... code if I can avoid it.
What would be cool is a ScrollToControl() Function for my code behind that worked but didn't register script.
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Oct 15, 2010
[Code]....
I have created a back button on my asp page. However, I would like this back button a a sinlge click to return the user to the page 2 pages before. I have tried to enter the history.back(2) but with no luck it does not work.
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Jul 7, 2012
i m having problem with logout code in asp.net with c#. this logout code should end session, disable browser's back button and and if somebody try to login by paste the url of any user account page.i used this code in login page
protected void Button1_Click(object sender, EventArgs e)
{
Session["name"] = TxtUserName.Text;
}
and in logout i used this
protected void logout_Click(object sender, EventArgs e)
{
Session.RemoveAll();
Session.Abandon();
Response.ClearHeaders();
Response.Redirect("login.aspx");
}
nothing happening back button is still visible
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Mar 31, 2010
I have a gridview bound to a sqldatasource with editing enabled. If I click Edit, then either Cancel or Update, the update or cancel occurs and the Edit button reappears. However, I cannot then click the browser's back button without having the Update and Cancel buttons reappear. A second click of the back button takes me to a state where the Edit button shows again, *then* another back button click will take me to the referring page (the one before the one with the gridview on it.) IOW, it looks like the postbacks are cached. How can I prevent this and have the back button go straight to the referring page?
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