I've created an AsyncFileUpload device that uploads an image in ListView but it doesn't refresh on the page until the page is manually refreshed. how to accomplish this? This is the applicable code:
In ListView control:
[Code]....
After ListView control:
[Code]....
Code-behind:
[Code]....
How would I go about having a thumbnail preview of an image that has been uploaded through AsyncFileUpload?
View 2 Repliesi am using the AsyncFileUpload from the ajaxtoolkit, upter the upload is complete ,
i want to display all the images that were uploaded (and their URL is inserted into the DB) with my repeater and binding method.
but its not working! the images are uploaded, the DB insert works file, but i cant see the images after the repeater is dinded.
(i have to mention that if i go step by step, i do see that the ITEMBOUND is being binded and executed)
[Code]....
[Code]....
I am using AsyncFileUpload to upload the file on OnUploadedComplete event i am binding the gridview with new datasource.On debugging its show that gridview is binded properly but after uploading the file gridview is not refreshed.My Gridview is not inside update panel
View 1 Repliesi want to make something like that
<cc1:AsyncFileUpload runat="server" id="upload"
onuploadedcomplete="Unnamed1_UploadedComplete">
</cc1:AsyncFileUpload>
<img onclick='upload.click()'/>
i tried lots of script but it doesnt work.
I used this code to uploading image and insert it to database
string path = Server.MapPath(".") + "../Upload";
string[] validext = { ".jpg", ".gif", ".png", ".rar" };
string ext =
System.IO.Path.GetExtension(AsyncFileUpload1.PostedFile.FileName);
if (Array.IndexOf(validext, ext.ToLower()) < 0)
[Code] ....
My problem is that it didn't insert image name in database it save some unknown Characters in database. So when I want bind my image from database it didn't show image .
this is my compelete code for validation type and display image with AsyncFileUplaodI'd like to upload only png, jpg, gifI can upload Image and have its preview successfullyand when try to upload another type It prevents and fortunately I can see this message"Upload a valid file with extension png, jpg, gif."but UnfortunatelyIt shows a message box with this errotUnhandled Exception: this._innerTB is null what's my mistake?Â
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Validation in AsyncFileUpload Example</title>
[code].....
I have some asp.net pages that read and write cookie values. During the life cycle of a page it may update the cookie value and then need to read it again further in the code. What I've found is that it's not getting the latest value of the cookie until a page refresh. Is there a way around this? Here's the code I'm using to set and get the values.
public static string GetValue(SessionKey sessionKey)
{
HttpCookie cookie = HttpContext.Current.Request.Cookies[cookiePrefix];
if (cookie == null)
return string.Empty;
return cookie[sessionKey.SessionKeyName] ?? string.Empty;
}
public static void SetValue(SessionKey sessionKey, string sessionValue)
{
HttpCookie cookie = HttpContext.Current.Request.Cookies[cookiePrefix];
if (cookie == null)
cookie = new HttpCookie(cookiePrefix);
cookie.Values[sessionKey.SessionKeyName] = sessionValue;
cookie.Expires = DateTime.Now.AddHours(1);
HttpContext.Current.Response.Cookies.Set(cookie);
}
I have a gridview binded with data and i am providing to user edit command button in gridview s row command event i opened the new page in modal popup to edit the selected id record and after modify i close the popup here i want to refresh gridview with updated data. here is the code i used to open editdocument page in modal popup from gridview row command event
Dim webLink As String = "EditDocument.aspx?ID=" & gv.DataKeys(Item_ID).Values(0) & "&Mode=" & 1
ScriptManager.RegisterStartupScript(Me, GetType(String), " Done", "window.open( '" & webLink & "', '','resizable=yes,scrollbars=yes,status=yes,toolbar=no,menubar=no, height=580px, width=480px,left=350px,top=100px' );", True)
I use AsyncFileUpload to upload images. It works fine.In this code I check so the size isn´t bigger than 1 MB and that it is a .jpg file.What I also will need to check is that the Width isn´t bigger than 100 and the height isn´t bigger than 200.I wonder how that could be possible to do in the code.
[Code]....
I have been cracking at this for a while now with no luck.
Using asyncfileupload control to upload a file and display the image. The uploading works fine and image is displayed if I reload/refresh the page.
But need to know how I can do this without reloading/refreshing the page.
After reading online posts, I see a recommendation to use scriptmanager but this doesn't work for me:
protected void FileUploadComplete(object sender, AjaxControlToolkit.AsyncFileUploadEventArgs e)
{
ScriptManager.RegisterStartupScript(this, GetType(), "TestAlert",
"window.parent.document.getElementById('" + img_ProfilePic.ClientID + "').src='" + "http://www.site.com/default.jpg" + "');",
true);
}
how to refresh a image control to pick up the latest on a asp.net page. The problem is that i am not able to
get the latest image on the page, it keeps showing the old page. But when i hit the refresh button on the toolbar it correctly gets the latest image and displays it in the control.
I am uploading an image with AsyncFileUpload, it works well, but i want to show to the user the image which him just uploaded, but i am having troubles to make that work.I have tried the OnClientUploadComplete event which receive sender and args paramenters, but the second paramenter only have the file name (without relative url), lenght, but not the file name after saved on the server.I also tried ScriptManager.RegisterClientScriptBlock and call my own function in order to pass the url, but for some reason i can't select the img control with jquery, seems like that peace of code is executing in another instance of the page... not sure.
View 2 RepliesI have a datalist and gridview that have a image in a column.. when you click the imagebutton, its calls my method that updates a table. The page is posting during this event, but when the page is done, the image hasnt changed.. im sure it has to do with the datasource not binding during that click.. so where can i move this code to or can i simply bind the control during that click? Currently im handling it in the itemdatabound event.. which would explain it.. but where is the correct place to handle this logic?
[Code]....
The control on the page is configured like so..
[Code]....
How to add client side required validator to asyncfileupload ,to enforce user to select file before submitting the page.
View 1 Replies Here is my code. I just wanted to update one column. Why is everything getting NULL put into it?
[Code]....
[Code]....
I moved from the FileUpload control to the AsyncFileUpload control.
1) Do AsyncFileUpload controls work under UpdatePanels??? (Please provide example or reference)
2) Can AsyncFileUpload controls be triggerd with an update button (both inside the same updatepanel)?
am using the AsyncFileUpload, when the AsyncFileUploadEventArgs event is fired i need to check if a textbox as been populated which i am doing. the problem is i am setting the validator to invalid. i would of thought this would display the error to the user, but nothing happens
protected void AsyncFileUpload1_UploadedComplete(object sender, AjaxControlToolkit.AsyncFileUploadEventArgs e)
{
[code]...
am fairly new to AJAX, but have successfully got my page working in FF and somewhat working in Opera and Chrome.I have made a table, and populated cells of that table with an AJAX call to a sever side script.I am then using those cells in mathematical equations on the client side.In FireFox this works smoothly, In IE it fails completely. IE doesn't see that there is a value to the cell of the table, even though it displays the information in the cell after the AJAX call. Am I doing something wrong to make IE over look the fact that i have changed the DOM? or am I doing something completely impossible in IE?I need a way to let IE know that there is a value in the cell.
View 3 RepliesI can't get the OnClientUploadStart function to trigger when the upload starts. I also can't get the throbberID to work.
<asp:ScriptManager ID="ScriptManager1" runat="server" />
<asp:AsyncFileUpload ID="AsyncFileUpload1" runat="server" [code]....
i am using AsyncFileUpload in a upadte panel but while i am running this project it shows a server error that
could not found AsyncFileUpload1_UploadedComplete event in Updatepanel1
[Code]....
I am just about to learn how the AsyncFileUpload component works. I have come up with some code but this does not compile excactly. It seems but are not sure that I need to declare some events etc... I will explain excactly what my goal is to do. It will be possible to upload a .jpg file from a users computer and save this file to the below path with a new name:
UploadedFile.jpg
"~/Folder1/Images/"
[Code]....
Is there any solution short of posting back, which completely defeats the entire purpose of this control?
View 1 RepliesI have built a custom Ajax User Control which uses the AsyncFileUpload control released with the latest Ajax Toolkit.
On my local machine the application works fine without error, however if I deploy the app onto my web server the functionality breaks.
I am trying to add a file via the AsyncFileUpload control, save it to the web server, then save some details into a datatable which is displayed in a gridview. All of this sits in an update panel.
When uploading small files (under 55kbs) the process works fine, however when uploading larger files, it doesn't like it. The control uploads the file successfully to it (the client error is not triggered), but it breaks when I try to save it to the web server. Upon saving, the document saves OK, but all the data is stripped away. It just saves the filename with no content. It looks like the AsyncFileUpload control has lost the File in session, therefore cannot save it. However the AsysncFileUpload.filename still exists and AsyncFileUpload.HasFile is returning true.
Has anyone seen anything like this before or have any ideas why this could be happening? I have set the web config httpRuntime maxRequestLength = 20480, so it shouldnt be that.
See code:
[code]....
I am just about to learn how the AsyncFileUpload component works. I have come up with some code but this does not compile excactly. It seems but are not sure that I need to declare some events etc...
I will explain excactly what my goal is to do.It will be possible to upload a .jpg file from a users computer and save this file to the below path with a new name:
UploadedFile.jpg
"~/Folder1/Images/" [Code]....