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• Postback event not firing on FIRST button click..

  - by ClarkeyBoy

  Hi, I have a form which accepts two arguments. The first one is mode - this is either view, new or edit. If it is new then the second argument is type - this is either range, collection or design. When set to new, and the type is valid, a new instance of that type is created and the data from the form is added to it. The item (range, collection or…

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• XML Postback issue

  - by Mikey1980

  I have a script that is designed to parse XML postbacks from Ultracart, right now just dumps it into a MySQL table. The script works fine if I point it to a XML file on my localhost but using 'php://input' it doesn't seem to grabbing anything. My logs show apache returning 200 after the post so I have no idea what could be wrong or how to drill…

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• URGENT: How to force a postback with asp.net and C#

  - by ErnieStings

  I have a demo scheduled with a client and i need a quick and dirty fix for now. I will find a more appropriate work around tomorrow but for the time being i need a way to force a post back, or refresh the page. i tried: Response.Redirect(""); but it brings me to a page that says "Object moved to here". 'here' is a hyperlink that brings me to…

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• CrossPage PostBack in series of web pages

  - by Vishnu Reddy

  I had a requirement to pass data between pages in my application. I have a Page A where user will input some data and on submit User will be redirected to Page B where again user will enter some more data and on submitting user will be show a confirmation in Page C after doing some calculations and data saving. Following is the idea I was…

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• Postback problem downloading zip file

  - by Chris Conway

  I've got a problem on a webforms application where a user selects some criteria from dropdowns on the page and hits a button on the page which calls this method: protected void btnSearch_Click(object sender, EventArgs e) They then click on button to download a zip file based on the criteria which calls this method: protected void…

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• Retrieving postback from Dynamically created controls in MVC without using FormCollection

  - by splatto

  I'm passing a List to an MVC view and generating checkboxes for each object in the list (The checkboxes are named t.Name). I'd like to be able to tell which checkboxes were checked once the form is posted. However, I'd like to avoid using the FormCollection object. Is there any way to do this?

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• dynamically created controls and postback

  - by Mark

  Hi all, I have created dynamic controls (Radiobuttonlists) in an asp.net page (c#). I create them after a button click like this. RadioButtonList rbl = new RadioButtonList(); c2.Controls.Add(rbl); //Set properties of rbl rbl.RepeatLayout = RepeatLayout.Flow; rbl.ID = string.Format("rbl{0}", item.QuestionID); rbl.RepeatDirection =…

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• invalid postback event instead of dropdown to datagrid

  - by rima

  I faced with funny situation. I created a page which is having some value, I set these value and control my post back event also. The problem is happening when I change a component index(ex reselect a combobox which is not inside my datagrid) then I dont know why without my page call the Page_Load it goes to create a new row in grid…

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• asp.net dropdown list postback to anchor

  - by The Talking Walnut

  How can I go to an anchor tag on the page when the myDropDownList_SelectedIndexChanged() event fires? I am using regular ASP.NET Forms. Update: The following is valid for an ASP.NET Button. I would like to achieve the same functionality (going to #someAnchor) when I select an option from the Dropdown list. <asp:Button…

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• is it possible to do partial postback on web?

  - by carter-boater

  Hi all, I read some paragraphs in a book saying that it is not possible to do a partial postback for web, even AJAX is employed. Ajax will postback everything and update only ajaxfied controls. However, on pages I made using ajax, I used Fiddler to monitor the transportation. I found when the page initial load, it loaded…

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• Maintain scroll position in ASP.NET

  - by nikolaosk

  One of the most common questions I get is " How to maintain the scroll position-location when a postback occurs in our ASP.NET application? " A lot of times when we click on a e.g a button in our application and a postback occurs, our application "loses" its scroll position. The default behaviour is to go back to the top…

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• Maintain scroll position in ASP.NET

  - by nikolaosk

  One of the most common questions I get is " How to maintain the scroll position-location when a postback occurs in our ASP.NET application? " A lot of times when we click on a e.g a button in our application and a postback occurs, our application "loses" its scroll position. The default behaviour is to go back to the top…

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• What's the difference between a Callback and a Partial Postback?

  - by Tim Goodman

  Is there a difference, or are the terms synonymous? Sorry if this has been asked before, I could only find the difference between a full postback and a callback. I'm already aware of how a full postback is different. In using ASP.Net 2.0, if that matters. (By the way, does it matter? Or are these terms defined the…

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• How do you persist a class on PostBack in an ASP.NET 3.5 Web Forms project?

  - by Kyle Noland

  How do I persist an ASP.Net class on PostBack? I've already taken the time to go to the database and fill my object with values when the page loads initially, so how can I save this object in an elegant way on a PostBack? The page that contains the custom object posts back to itself. For what it's worth I'm using C#…

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• FAQ: Highlight GridView Row on Click and Retain Selected Row on Postback

  - by Vincent Maverick Durano

  A couple of months ago I’ve written a simple demo about “Highlighting GridView Row on MouseOver”. I’ve noticed many members in the forums (http://forums.asp.net) are asking how to highlight row in GridView and retain the selected row across postbacks. So I’ve decided to write this post to demonstrate how to implement…

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• FAQ&ndash;Highlight GridView Row on Click and Retain Selected Row on Postback

  - by Vincent Maverick Durano

  A couple of months ago I’ve written a simple demo about “Highlighting GridView Row on MouseOver”. I’ve noticed many members in the forums (http://forums.asp.net) are asking how to highlight row in GridView and retain the selected row across postbacks. So I’ve decided to write this post to demonstrate how to implement…

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• How to trigger a postback using JQuery Droppable plugin ?

  - by Sandeep K Ram

  Hi, This is my script for the draggable and droppable <script type="text/javascript"> $(function() { $(".Source li").draggable({ appendTo: "body", helper: "clone", revert: "invalid" }); $(".Destination ").droppable({ activeClass:…

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• How can I access the value of a checkbox without a postback?

  - by Starwfanatic

  I have a radgrid controlling access to an application for users. There are two columns, a 'name' column and a checkbox 'access' column representing their current access permission. the checkboxes are populated from a database. I would like the to change the checkboxes to grant or deny access to the users I specify.…

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• Page_BlockSubmit - reset it to False, if there is a scenario when page doesn't postback on validation error

  - by Vipin

  Recently, I was facing a problem where if there was a validation error, and if I changed the state of checkbox it won't postback on first attempt. But when I uncheck and check again , it postbacks on second attempt...this is some quirky behaviour in .ASP.Net platform. The solution was to reset Page_BlockSubmit flag…

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• ASP.NET :: During page_load, how can I get the ID of the control that submitted the postback?

  - by Andy Evans

  During the Page_Load, I would like to capture the control that performed the postback. protected void Page_Load(object sender, EventArgs e) { if (!Page.IsPostBack) { } // Capture the control ID here. } As usual, any ideas would be greatly appreciated!

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• How to let Html Link (anchor) do a postback to be like LinkButton?

  - by Pr0fess0rX

  Hello, I would like to ask how can i make an html anchor (a element) or even any object to do a postback or to execute an server side method? I want to create a custom button (a wrapped with some divs to do some custom them) and i want to implement OnClick to be look like the ASP.NET LinkButton?

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• ASP.NET Chart Control - During a PostBack

  - by Guilherme Cardoso

  To use the Chart control from a PostBack is necessary to modify the ChartImg.axd HttpHandler, otherwise we'll get the error message: Error executing child request for ChartImg.axd In Web.Config search the line: <add path = "ChartImg.axd" verb = "GET,HEAD" type =…

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• ASP.NET control event handler not firing on postback?

  - by Polaris878

  I have a control which has an ImageButton which is tied to an OnClick event... Upon clicking this control, a postback is performed and the event handler is not called. AutoEventWireup is set to true, and I've double checked spelling etc.... We haven't touched this…

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• What's the official Microsoft way to track counts of dynamic controls to be reconstructed upon Postback?

  - by John K

  When creating dynamic controls based on a data source of arbitrary and changing size, what is the official way to track exactly how many controls need to be rebuilt into the page's control collection after a Postback operation (i.e. on the server side during the…

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• How to Retrieve Values of A Dynamically Created Control's Child Controls on PostBack?

  - by Jordan

  Given: I have a custom server control in the markup of an aspx page. This control creates child controls in its CreateChildControls() method (e.g. it retrieves content from a database and based on that content dynamically creates either a CheckBoxList or a…

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