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how to upload multiple files using a single upload control in a MVC application

By : AcToR
Date : October 18 2020, 06:10 AM
To fix the issue you can do You can get multiple files using Request.Files as HttpFileCollectionBase and through iteration you can upload multiple files.
code :
        public ActionResult Index(HttpPostedFileBase FileUpload1)
            if (FileUpload1.ContentLength > 0)
                HttpFileCollectionBase files = Request.Files;
                DataTable dt = new DataTable { Columns = { new DataColumn("Path") } };
                for (int i = 0; i < files.Count; i++)
                    HttpPostedFileBase file = files[i];
                    string path = Server.MapPath("~") + "\\Images\\" + file.FileName;
                ViewData.Model = dt.AsEnumerable();
            return View();

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Unable to upload files through File Upload control

By : Allcats
Date : March 29 2020, 07:55 AM
wish help you to fix your issue Add Network Service (in security) and give all full control for the folder to which you are uploading the file. if still it doesn't work then add Everyone and give full control.

How to upload files using Kendo UI File Upload Control?

By : John Black
Date : March 29 2020, 07:55 AM
hope this fix your issue I have a simple HTML page and i would like to upload a file from client machine to server side, here i am trying to upload a file using Kendo UI contorl, but it doesn't work fine, i have given my code details below. , Try this example to illustrate your problem
code :
    <link href="styles/kendo.common.min.css" rel="stylesheet" />
    <link href="styles/kendo.default.min.css" rel="stylesheet" />
    <script src="js/jquery.min.js"></script>
    <script src="js/kendo.all.min.js"></script>

        <div id="example" class="k-content">
            <div class="configuration">
                <span class="infoHead">Information</span>
                    The Upload can be used as a drop-in replacement
                    for file input elements.
                    This "synchronous" mode does not require
                    special handling on the server.
            <form method="post" action="submit" style="width:45%">
                <div class="demo-section">
                    <input name="files" id="files" type="file" />
                        <input type="submit" value="Submit" class="k-button" />
                $(document).ready(function() {


How to use two multiple file upload control files in a single button click

By : user2368662
Date : March 29 2020, 07:55 AM
I hope this helps you . Don't use Request.Files. It contains all files from FileUpload1 and FileUpload2. Use FileUpload2.PostedFiles instead.
Here's an example usage
code :
protected void uploadFiles_Click(object sender, EventArgs e)
        if (FileUpload2.HasFiles)
            foreach (HttpPostedFile uploadedFile in FileUpload2.PostedFiles)
                listofuploadedfiles.Text += String.Format("{0}<br />", uploadedFile.FileName);

Restrict file upload control to upload only certion type of files in c #

By : Liam Pino
Date : March 29 2020, 07:55 AM
To fix this issue In web application how to restrict the uploaded file types when opening file upload dialog. If you are using ASP.NET & c# , Just validate the file extension as i did for excel file

Django Admin - Upload multiple images to multiple model objects in a single upload

By : Mihail Potinteu
Date : October 10 2020, 11:00 PM
I wish did fix the issue. Update thousands of records at once is challenging as default.
One issue is the performance on the database side. the best I could come up is using update and overwriting some methods. assume you already have your images in some directory.
code :
from django.db.models import fields
from django.db.models import F
from django.db.models.expressions import Value , CombinedExpression
from django.db.models import QuerySet

class TextValue(Value):
    def as_sql(self, compiler, connection):
        return '%s', [self.value]

class Expr(F):
    ADD = '||'  # standard concat row value + value in PostgreSQL

    #overwrite method to support text
    def _combine(self, other, connector, reversed):
        if not hasattr(other, 'resolve_expression'):
            other = TextValue(other, output_field=fields.CharField())

        return CombinedExpression(self, connector, other)

class Entry(models.Model):
    name = models.CharField(unique=True, max_length=200, db_index=True)
    image = models.ImageField(upload_to= 'media/' , null=True, blank=True , default='default.png')
entries= Entry.objects.all() 
entries.update(**{'image': Expr('name') + '.png'})
{'sql': 'UPDATE "entry" SET "image" = ("entry"."name" || \'.png\')', 'time': '0.024'}]
from django.contrib import  admin
from django import forms

class EntryForm(forms.ModelForm):
    def __init__(self, *args, **kwargs):
        super(EntryForm, self).__init__(*args, **kwargs)
            {'multiple': True, 'accept': 'image/jpg,image/png,image/gif', })

class EntryAdmin(admin.ModelAdmin):
    form = EntryForm

    def save_model(self, request, obj, form, change):
        files = request.FILES.getlist('image')

        # if image exist
        if files:
            for image_field in files:
                    instance = Entry.objects.get(name=image_field.name[:-4])
                    instance.image = image_field
                except Entry.DoesNotExist:
            return super().save_model(request, obj, form, change)

admin.site.register(Entry , EntryAdmin)
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