i have searched on google and got an article [URL] keep selected file in fileupload control even after page postback. But it's not working at all. So is there any way through which we can keep selected files in fileupload even after page postback.?
View 1 RepliesI have a FileUpload control and a DropDownlist control in an UpdatePanel and when user select a file for the FileUpload control (no upload yet), in the meanwhile the user select an option from the DropDownList control which will cause a postback! Once the page postback, the path selected in the FileUpload control will gone. How can i remain the path in the FileUpload control? File uploading function was working. I hope can remain the path in the FileUpload control during postback.
I have tried the solution below but the "FileUpload1.HasFile" will return false to me.
If Session("FileUpload1") Is Nothing AndAlso Upload.HasFile Then
Session("FileUpload1") = Upload
lblPhotoUploadErr.Text = Upload.FileName
ElseIf Session("FileUpload1") IsNot Nothing AndAlso (Not Upload.HasFile) Then
[Code]....
My <input id="FileUpload1" name="FileUpload1" type="file"> and country dropdown both are inside update panel , now on selectedindexchanged it do postback , which i am triggering in update panel to avoid page refresh .
Now the problem is when i select any image in fileupload and then select country , my selectedimage vanishes but its path stays in textbox .
I have a FileUpload control in an UpdatePanel and when user select a file, the full file path will will be stored in a hiddenfield, and during postback, i would like to assign the full file path in the hiddenfield back to the FileUpload control textbox, possible to achieve that?
View 1 RepliesHere is the sample code am trying.
<div>
<asp:ScriptManager ID="ScriptManager1" runat="server" EnablePartialRendering="true" />
<div>
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="conditional">
<Triggers>
<asp:PostBackTrigger ControlID="Button1" />
[Code] ....
This upload is working. But why the page is getting refreshed? this is not partial post back and instead it 's full post back. i have read the articles for the fileuplaod with issue inside the update panel. is there any way to achieve this asynchronous upload on button click?
I don't want to use the Ajaxtoolkit Asyncupload because that will upload (Ref : [URL] ....] the moment when we seelct the file itself which i don't want to do that. i need to do on the button click event.
I have Created a Web page with master page. Page Contains two dropdown list i am using Update panel with trigger.
when I select image using fileupload after state and city changes then record submitted with Image but when i select the image after that i did some changes with state and city on that time fileupload lost its selected file or files .
i hv postback event executing after i am trying to upload a file to server to ask for conformation by the user. after postback fileupload control gets cleared and i am not able to get its value after postback. controls viewstateEnabled property is true. How do i assign a file path to fileupload control after postback.
View 2 RepliesI have a grid view which is costomized.I upload a image in this,when i click edit button then give error (Specified cast is not valid.)
<td align="center" rowspan="11" style="width: 130px" valign="top">
<asp:FileUpload ID="FileUpload4" runat="server" Width="100px"
Enabled='<%# bind("imagePath") %>' />
<asp:Label ID="lblimage" runat="server" Text='<%# Bind("imagepath") %>'
Visible="False"></asp:Label>
</td>
How to set default file in <asp:FileUpload />
When a FileUpload is null then i want to set defualt file .
regarding my code :
Byte[] imgByte = null;
if (FileUpload1.HasFile && FileUpload1.PostedFile != null)
{
HttpPostedFile File = FileUpload1.PostedFile;
imgByte = new Byte[File.ContentLength];
File.InputStream.Read(imgByte, 0, File.ContentLength);
}
I have a user control in which i am using File upload control for uploading file.
I have used ModelPopExtender here for showing it in popup.
I am using javascript function for full PostBack. In Javascript function, i am using __doPostBack for PostBack. It is working fine when i use this control in aspx page.
Problem occurs when i use this user control in another user control. It does not find javascript function.
How to file upload without file upload control in C# i am Very Confuse
View 1 RepliesHow to use File Upload to open a file.
View 1 Replies<PagerStyle HorizontalAlign="Right" CssClass="paging"/>
<PagerTemplate>
<table width="100%">
<tr>
<td style="text-align:left; width:50%">
<asp:LinkButton ID="lnkPrv" Visible="false" CommandName="Page" CommandArgument="Prev" runat="server">Previous</asp:LinkButton>
</td>
<td style="text-align:right; width:50%;padding-left:50%;">
<asp:LinkButton ID="lnkNext" CommandName="Page" CommandArgument="Next" runat="server">Next</asp:LinkButton>
</td>
</tr>
</table>
</PagerTemplate>
Code behind is below
protected void gvProduct_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
Literal1.Visible = gvProduct.PageIndex == 0;
LinkButton lnkPrv = (LinkButton)gvProduct.BottomPagerRow.FindControl("lnkPrv");
LinkButton lnkNext = (LinkButton)gvProduct.BottomPagerRow.FindControl("lnkNext");
lnkPrv.Visible = e.NewPageIndex > 0;
lnkNext.Visible = e.NewPageIndex < gvProduct.PageCount - 1;
gvProduct.PageIndex = e.NewPageIndex;
FillGrid();
}
The code does not give any error. I can see it set the visible property to true/false. But actual control on page remain same (always visible on every page).
I am having a fileuploade control on my aspx page. On button click I want the physical fullpath of my file, which i am going to upload on server. If the file is in desktop then it should show C:Users Admin1DesktopSampleHonourImages.png
I have used Path.GetFullPath(Fileupload1.FileName) but it is giving C:Program Files (x86)IIS ExpressHonourImages.png instead of actual path
In my application Im saving multiple files(image,pdf,txt) to a folder. Suppose I have an image with name "image1", if this image already exists in the folder and if another user tries to add another image with the same name "image1" then, it should give message to change the File name.
I had used below code:
string filePath = DamRep_FileUpload.PostedFile.FileName;
string filename = Path.GetFileName(filePath);
string contenttype = String.Empty;
if (contenttype != String.Empty)
{
if (File.Exists("~/FTP/File/"))
[Code] ....
but its not working.
I have Fileupload control in my page
1-i want delete the text that is beside of fileupload button text: no file choesn
2-i want change text of file upload button( I want change Choose file text)
I have fileupload control on button click event it is uploading file to my folder. its working fine.
i want as the user give the file path using file upload control browse button it uploads the file user does not need to click on button.
[URL] .... I am referring to the link given mentioned above, i want to save image details into database of each file, if i select two files i want to save filename in database in each row. ist file in 1 row , second file in next row with file name.
View 1 RepliesI'm having a little problem with my file uploading. Does anybody know how to maintain the value in the FileUpload control between server posts?
I have a form which, among other things, uploads a file. I am using an ileUpload control (created dynamically) to let a user browse their PC for a file and then using the SaveAs method to upload the file to the server.When I'm selecting a file and Click on Next button for processing then selected file is lost.
Same is happening with me with HtmlTextArea (dynamically generated) , the problem was that I was not again re-initializing the controls after postback. What I did is re-initialized it in Init method of placeholder (as I have created/placed all dynamic controls in placeholder ).
But this thing is not working for fileupload control. I found solution in one of the forum is that "use hiddenField Control to transfer the selected file from the client to server"but this mechanism will only help to retain the name of file
in a hidden variable and the FileUpload1.PostedFile.SaveAs(filename) will not work bcz of absense of object (fileupload1).
here is code:
[Code]....
I have done almost the same in different test project , it works . I dont know whats wrong?
[Code]....
How to correct this?
I have seen many posts here regarding this, but none with a successful solution.I m using a asp.net fileupload control & not the html one.I have various controls on the page, & on a listbox control, listitem selection, page postbacks.So before it, if i had selected a file for upload & page poastbacks, the the file goes off.Now on postback, I have got the filename in a hidden field, but since the Fileupload control doesnt have any setter methods, not able to get how to set the hidden field value & how to set it...
View 2 RepliesI have a ASP.Net FileUpload control in my page. Once the File is uploaded I want to display the path in FileUpload control
View 1 RepliesI'm posting this here because is related with ajax:
I need to upload files without the postback. So far i know that i can use an UpdatePanel with an AsyncFileUpload to achieve this, and it works fine, but this is not enough for me. Turns out that i need the fileupload control to be invisible until the user press a button. then i have to show the file upload control also without the postback, that's why i'm using the updatepanel. To acomplish this i'm using the following code:
[Code]....
if i don't use the normal panel it works fine, but when i put that control, it doesn't work. By "doesn't work" what i whant to say is that it doesn't fire the OnUploadedComplete method.
I'm trying to put a updateprogress into a webpage where selection from the dropdownlist causes postback. Works out well except that on the first postback, the gif image shows on the leftside rather than on the center. On succeeding postback, it will show on the centre where I intend it to be. Below is my code:
[Code]....
I am using .net 3.5 framework. I have a Tabcontainer inside that I have place asp.net fileupload control which is inside update panel. It's been known fact that fileupload control does not work under update panel unless we use Postback Triggers.
[Code]....
[Code]....
I have gridview. In my griview, i have Fileupload template field.
but, problem is whenever my page get postback fileupload loses its content or selected file.