FileUpload In FormView Inside An UpdatePanel

Aug 24, 2010

I have an ASP.Net webpage which I intend to use for letting the user(not the real users, but content manager basically) insert and edit the records in a table using a FormView. This FormView is inside an UpdatePanel, as I'm also using cascading dropdownlists to let the user select some values. Now, this FormView also contains 4 FileUpload controls, and as you might know that these fileupload controls require a full postback since most browsers do not let Javascript access the disk. So, this problem would have been solved by doing something like:

<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<Triggers>
<asp:PostBackTrigger ControlID="InsertButton" />
<asp:PostBackTrigger ControlID="UpdateButton" />
</Triggers>
<ContentTemplate>....</ContentTemplate>
</asp:UpdatePanel>

Edit: Forgot to add that the fileuploading takes place in the OnUpdating and OnInserting events of the SqlDataSource. The Problem: Since the InsertButton and the UpdateButton reside inside the Formview, I cannot directly access their ID's through markup. And MSDN says that: Programmatically adding PostBackTrigger controls is not supported. A workable solution for me was to set the UpdatePanel's PostBackTrigger as the whole FormView itself:

<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<Triggers>
<asp:PostBackTrigger ControlID="FormView1" />
</Triggers>
<ContentTemplate>....</ContentTemplate>
</asp:UpdatePanel>

But now due to a bit of change in requirements, this solution(if you call it a solution) is not acceptable.

View 2 Replies


Similar Messages:

C# - Fileupload Inside Updatepanel Which In Usercontrol?

Oct 4, 2010

i am doing Fileupload using asp.net 3.5 with asp.net ajax.In that i am using Usercontrol MainPage.ascx Page:In this page i am using UpdatePanel inside Fileupload control. Demo.aspx:In this page also i am using Updatepanel. i am drag MainPage.ascx usercontrol inside this UpdatePanel which is in Demo.aspx. Question: When i drag the Mainpage.ascx Usercontrol on Demo.aspx. Here i am getting the Fileupload.HasFile is getting null .If anybody knows Plz.

View 2 Replies

AJAX :: FileUpload Inside UpdatePanel

Dec 1, 2010

I am using FileUpload control inside UpdatePanel, but cant get it working and keep getting error : "Object reference not set to an instance..." on line: If fuAvatar.PostedFile.FileName <> "" Then I have checked several forum and people mentioned that we need PostBackTrigger but i just cant get it working and keep getting the "Object reference not set..." error. My FileUpload control is inside a panel and along with another control, and the upload occurs when user click on Finish button.

[Code]....

And my codebehind is:

[Code]....

View 12 Replies

AJAX :: FileUpload Controls Does Not Work Inside An Updatepanel

Feb 26, 2010

I use a tabcontrol with 2 tabs. In the second tabpanel as seen in the code I use a Fileuploadcontrol to upload Images from a users computer.

The problem is that I need to surround the tabcontrol with an updatepanel as I dont want a fullpage postback when switching between these 2 tabpanels. In this code I have the tabcontrol inside an updatepanel but the problem is that the Fileupload controls does not seem to work inside an updatepanel.

How will I solve this problem as I dont want a fullpage postback when switching between the tabs ?

[Code]....

View 8 Replies

FileUpload Control Inside Gridview (ajax Updatepanel)

Mar 11, 2011

I've got a fileupload control inside of a gridview so that each row (item from the database) can have an attachment associated with it. I've got a button next to the fileupload control (besides the default browse... button to select the file) to actually take the file and upload it to a file server. This works great if I use this button "Upload". However, underneath my gridview I have another imagebutton that is outside of the gridview, its just sitting on the form / page. The idea of this "Update" button is when end users make changes to the grid I can simply loop through the grid and update the values they have entered to the database. This also works great.

Now here is my issue assume a user has 3 rows in the grid view. On 2 of these rows he decides to add an attachment but he never clicks the "Upload" button he only uses the standard browse button to select the file. Now instead of clicking the "Upload" button that is on the grid view he ends up clicking the "Update" button outside of the grid thinking that it will save his attachments. So I decided to write code to grab the fileupload control from the grid using .FindControls("NameOfFileUploadControl") in my Update button loop where I loop through all the rows. Then I check if myFileUploadControl.HasFile property to see if there exists a file and if there does upload the file then continue with the code.

The issue is when I click this "Update" button .HasFile always returns false even though I can see the text string of the path in the fileuploadcontrol textbox (the standard one next to the browse button). Is it because this goes back to the page load event and checks if it is a post back? What causes this and how can I fix it? Im adding some code because im still confused with this

Protected Sub SaveGrid()
For Each Row As GridViewRow In Me.gvLineItems.Rows
Dim f As FileUpload = CType(Row.FindControl("fuAttachment"), FileUpload)
'todo: this part is not working
If f.FileName.Length > 0 Then 'returns 0 always
'this returns 0.
end if
if f.HasFile() then
'this also returns false
end if
Next
End Sub

This method gets called on a click of a button. The fileupload control is in an of a gridview that is wrapped inside of an UpdatePanel:

<asp:FileUpload Width="90px" Font-Size="xx-small" ID="fuAttachment" runat="server" />

View 1 Replies

Web Forms :: FileUpload Control Does Not Work When Placed Inside UpdatePanel

Jul 24, 2012

Following is my html design 

<asp:UpdatePanel ID="up1" runat="server"><ContentTemplate>
<asp:FileUpload ID="FileUpload1" runat="server" />
<asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="upload" />
<asp:Label ID="Label1" runat="server" Text=""></asp:Label>   </ContentTemplate></asp:UpdatePanel>

and 

if (FileUpload1.PostedFile !=null) {
//my upload code here....
}

without update panel it works fine.after place all control inside update its not working. How to fix this...

View 1 Replies

Web Forms :: Hooking Dynamic Controls Inside An Updatepanel As An Asynctrigger To Another UpdatePanel?

Oct 7, 2010

I have two update panels and one javascript control.

When the javascript button is clicked, it forces a partial postback on UpdatePanel2. UpdatePanel2 is populated with dynamically created buttons that have javascript effects (jquery) but when click can also induce a postback. My problem is that, when clicking on these dynamic buttons, the whole page does not do a partial post back but rather UpdatePanel2 itself does a partial postback and everything is gone.

However, what I want to do is be able to tie each of the dynamic buttons in UpdatePanel2 (After being dynamically created) and make them an asychnonous triggers to UpdatePanel1. So that when clicking on these dynamic buttons, ONLY UpdatePanel1 is doing a partial postback refresh. UpdatePanel2 stays put and remains the same.

View 1 Replies

UpdatePanel Returns Error When Click On Linkbutton Which Is Inside UpdatePanel

Mar 26, 2010

i have Linkbutton inside updatePanel and when i click on it it returns following error

An extender can't be in a different UpdatePanel than the control it extends

View 1 Replies

Web Forms :: Script Inside Updatepanel Disappears On Update Of Updatepanel?

Feb 14, 2011

I have a script inside an updatepanel. This script needs to be inside the updatepanel as it must be located in that spot.

Now when we click the "LinkButton" to update the updatepanel, the script will dissapear.

It seems that the script only is initiazed on the first Page_Load and Refresh of the page.

How can we keep it when pressing the "LinkButton"?

Complete code is below:

[Code]....

View 15 Replies

Forms Data Controls :: Populating DropDownList Inside A ListView Inside A FormView

Jan 16, 2010

I have the following (abbreviated) code:

<asp:FormView ID="FormView1" runat="server" DataKeyNames="ItemID" DataSourceID="LinqDataSource1">
<EditItemTemplate>
<asp:DropDownList ID="ddlCategory" runat="server" SelectedValue='<%# Eval("Category") %>'
DataSource="<%# GetCategories() %>" DataTextField="Text" DataValueField="Value" />
</EditItemTemplate>
<ItemTemplate>
<asp:ListView ID="lvParticipants" runat="server" DataSource='<%# Eval("Participants") %>' >
<InsertItemTemplate>
<asp:DropDownList ID="ddlCountry" runat="server" SelectedValue='<%# Eval("Country") %>'
DataSource="<%# GetCountries() %>" DataTextField="Text" DataValueField="Value" />
</InsertItemTemplate>
</asp:ListView>
<ItemTemplate>
</asp:FormView>

When the FormView is in Edit mode, ddlCategory is populated as expected by calling GetCategories(), which returns a List of categories. However, when the ListView is in Insert mode, ddlCountry is empty. I put a break point in GetCountries(), but it never gets called. If I change the name of the method, I get an error. So it recognizes the method at compile time, but does not call it at run time. I'm guessing this is an embedded binding issue of some kind, but I'm hoping someone can save me a lot of time by pointing out the solution.

View 11 Replies

Have A Dropdownlist In Inside A Formview And Jquery Cant Find The Control Im Guessing Because Its Inside A Form?

Jun 14, 2010

Hello all i have this little issue getting this to work, i have a dropdownlist in asp.net inside a formview and jquery cant find the control im guessing because its inside a form, this is what i got and it works on another page without a formviewi get this errorName 'Country' is not declared

[Code]....

View 19 Replies

AJAX :: Fileupload In UpdatePanel?

Sep 16, 2010

[Code]....

The FileUpload1.HasFile returns false when in the UpdatePanel Solution

[Code]....

View 3 Replies

Forms Data Controls :: Add A Fileupload Control To A Formview?

Dec 10, 2010

Couple quick questions:What's the difference between FormView1_ItemUpdating and FormView1_OnUpdating? Do they occur at different times in the update process?Still can't get my code to upload the file...what am I missing?

View 9 Replies

Web Forms :: Storing The Filepath Using Fileupload Control In Formview?

Feb 9, 2011

I have a formview with an entitydatasource. I am using a fileupload control in the formview to upload file to a folder. The file upload works fine. The formview is bound to a table x with a field for storing the filepath. I want the uploaded filepath to be stored in that field after fileupload. My html is as follows. I tried setting the textbox txtImageURI to the filepath in Formview_ItemInserting event, but the data did not get store.

<asp:FileUpload
ID="fupldEvent"
runat="server"
/>
<asp:TextBox
ID="txtImageURI"
runat="server"
Text='<%#
Bind("ImageURI") %>'
Visible="false"
/>

View 4 Replies

Forms Data Controls :: FileUpload Control In FormView?

Dec 10, 2010

I've been searching on this question for hours and not finding a solutionI simply want to access a FileUpload control in the EditItemTemplate of a FormView.When the FileUpload control is outside of the FormView, I can access it like this:

[Code]....

Visual Studio says:"The name 'UploadImage1' does not exist in the current context" It says this about any controls I've put in the FormView.How do I access these controls in my c# code behind?

View 2 Replies

AJAX :: Cannot Bind Dropdownlist Inside From Button Click Inside Updatepanel

Sep 24, 2010

I have a gridview inside UpdatePanel.

Inside gridview there is a dropdownlist and a button on each row. On button click I am opening a panel through Modal popup extneder.

Inside that pop up there is again a dropdownlist. I am adding an item into this dropdownlist based on the selection from the dropdown inside gridview.

like ddl.items.insert(0,'xyz');

But first time this inserted item is not getting reflected in the dropdownlist. But after one postback this item is getting reflected.

View 2 Replies

FileUpload Doesn't Work When Nested In UpdatePanel?

Jan 21, 2010

<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:FileUpload onchange="clickTheButton();" ID="FileUpload1" runat="server" />
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="Button1" />
</Triggers>
</asp:UpdatePanel>

Button 1 is outside the update panel and the javascript that gets run when a user adds a file in the upload box is this:

function clickTheButton() {
document.getElementById('<%= Button1.ClientID %>').click();
}

The problem is simple. FileUpload1.HasFile == false. I don't know why this is, but when I put it in the update panel it ceases to work.

I have seen some other threads on this. But none of them answer why this is happening, they just point to things you can download.

EDIT: Really my main reason for wanting to do this is so that I can get a ..Uploading File.. Tag to pop up while the client is uploading to the server and once it has completed, display it in a datalist. I just cant get the UpdateProgress to work.

View 3 Replies

AJAX :: FileUpload Control Not Working In UpdatePanel?

Sep 21, 2010

I want to uplaod my images into the database.it works fine if my images are inserted into the database on postback,but when i put my FileUpload control in UpdatePanel the FileUpload.PostedFile property shows NULL.remember my scriptmanager tag is in master page.

here is the code:

UploadImage.aspx

<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">

[Code]....

</asp:Content>

View 2 Replies

Forms Data Controls :: DropDownList Inside GridView Inside UpdatePanel SelectedIndexChanged Event Not Firing?

Aug 16, 2010

I have an UpdatePanel with a GridView. This GridView has a template column that is a DropDownList. The problem is that the SelectedIndexChanged event does not fire for the DropDownList. Here is the code:

[Code]....

The codebehind:

[Code]....

View 2 Replies

AJAX :: Editing Image Inside DetailsView Inside UpdatePanel?

Oct 4, 2010

I'm trying to add and edit an image which is located in a detailsview which is inside an UpdatePanel. After I read relevant topics in the forum I installed the Ajax Control Toolkit. Below is my source code. When I used it only for insert new image it worked great. The problem caused when I tried to implement it on the Edit mode, i.e. when I tried to edit the image and upload a different image. Unfortunately it didn't work as I hoped. Nothing happend and the image hasn't been changed. I also tried to change the IDs (AsyncFileUpload ID) to be the same in both places but it didn't work either.

The source code:

<asp:DetailsView ID="dvMovie" runat="server" Height="50px" Width="695px"
AutoGenerateRows="False" DataSourceID="sdsMovieById"
BorderColor="#E7E7FF" BorderStyle="None" BorderWidth="1px" [code].....

View 2 Replies

Using JS Event Handlers Inside A Wizard Inside An Updatepanel?

Feb 28, 2010

I've got a textbox being used to enter a password inside a wizard control. I'm trying to get a password strength meter working with it.

Unfortunately, the password box isn't visible until step 4 and this means that I can't register the event handler onload() and putting some JS next to the PW box to register the event handler doesn't seem to fire. I'm guessing this is due to the contents of the wizard being loaded through an AJAX postback.

[code]....

View 1 Replies

C# - UpdatePanel's PostbackTrigger That Is Inside A Usercontrol Inside A Masterpage?

Feb 24, 2011

I have a masterpage and inside that masterage is a user control that has a toolbar with a save button. I then have an aspx page that inherits form t he master page. In that page I have and updatepanel. Is it possible to set the post back trigger to the Save button inside the usercontrol?

View 3 Replies

AJAX :: Fileupload In Updatepanel With Timer Doesn't Work At The Second Time

Jan 23, 2011

I cannot use asyncFileUpload as it has too many restrictions which doesn't meet our requirement.

I'm able to add a updatepanel trigger to force the Button1 to perform a postback. after the file uploaded, I need to use a timer to do different tasks and return messages back to client with the timer. That is all fine.

However, when one upload is finished. I try to do it again. The FileUpload1.HasFile is "false". I don't know why. if I remove the timer, at the second time, the HasFile is "true". I think there must be something in the timer and disable the Button1's postback.

page:

[Code]....

Code:

[Code]....

View 2 Replies

AJAX :: FileUpload Control With Validation Not Work After Enclosing With UpdatePanel?

Nov 23, 2010

I have a FileUpload Control on the page with validation and it is working smoothly.

Later there is an important demand to have it partially updated so we enclose it with UpdatePanel.

Then problem comes up when user browse file and press upload button, no file is uploaded.

Is it we cannot do partial rendering with FileUploader ?

View 3 Replies

C# - Works Out Of UpdatePanel But Not Inside UpdatePanel?

Mar 28, 2010

I have copy and paste this Alert Class:[URL] It works except with a button inside an update panel but it shows no error. The asp code inside is executed but nothing shows up on client side.

View 2 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved