Questions on UI for ASP.NET MVC Forum

1 answer

72 views

Disable Choose File Button on Upload Control

I'm using the Kendo for ASP.Net MVC Upload control. I'm on version 2019, and upgrading right now is not an option unfortunately. When the user chooses a file (multi-select is off), I have a Submit button separate from the control that the user clicks to begin the upload. While the upload is taking place, I want the Choose File button to be disabled. I need the pause and cancel buttons enabled, so it won't work to disable the entire control. I have a place to put some javascript to disable the button, but everything I've tried so far doesn't accomplish disabling the button.

Here is the declaration of the control:

<div id="uploadControlContainer" class="upload-input col-sm-12">
@(Html.Kendo().Upload()
.Name("chunkContent")
.Async(a => a
.Batch(false)
.Save("UploadLargeFileChunk", "DocumentUpload")
//.Remove("Remove", "DocumentUpload") not implemented
.AutoUpload(false)
.ChunkSize(Model.ChunkSize)
.AutoRetryAfter(Model.AutoRetryAfter)
.MaxAutoRetries(Model.MaxAutoRetries)
)
.Multiple(false)
.Events(e => e.Select("onSelectFile"))
.Events(e => e.Upload("onUploadChunk"))
.Events(e => e.Cancel("onCancelUpload"))
.Events(e => e.Success("onUploadSuccess"))
.Events(e => e.Error("onUploadError"))
.Messages(m => m.Select("Choose File"))
)
</div>

Upload

answered on 06 Feb 2025

1 answer

109 views

Import Excel data into Kendo Grid

Hi,

I have have a requirement, where I need to upload an excel file. After uploading the excel file when the user clicks Import button then all the excel data should add to the Kendo grid.

I am using .Net 8 with MVC Razor page to achieve this. Is there any library I have to use to read the excel data to kendo grid or the kendo grid

have some API(s) which can read the excel file and update the grid.

This is my excel records.

This is my application, when the user upload this above excel and click on import from Excel, then the above excel records should fill in the

kendo grid.

Grid

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answered on 23 Jan 2025

0 answers

108 views

How to continue upload of other files if one failes to upload?

Im trying to find a way to continue with upload of multiple files if one fails. I have a check on Save that if file names is longer then 100 chars, it will return a error. Upload will stop on that file, and will only continue when user click on X button to remove the file. I need for kendo upload to continue with the upload of other files without user having to click on X button for each file that files.

Upload

asked on 07 Aug 2024

0 answers

129 views

Upload, delete and download documents using Kendo upload

Hi

My req is to save the documents in database in blob format. When user submits the form, the form will be saved in database and then with saved formid as reference key uploaded documents will be saved in documents table.

When user edits submitted form, I need to display already attached forms on the page. User may delete or attach new forms in edit screen.

When user viewing the form in read only mode, user should be able to download the form. How can i achieve this?

below code is working for uploading...

<div class="row col-md-12">
                    <div class="col-md-10">
                        <div class="form-group">
                            @Html.LabelFor(model => model.files, htmlAttributes: new { @class = "control-label col-md-4" })
                            <div class="col-md-8">
                                @(Html.Kendo().Upload()
                                    .Name("files")
                                    .Validation(validation => validation
                                    .AllowedExtensions(new string[] { ".pdf", ".txt", ".xlsx", ".xls", ".doc", ".docx" })
                                    .MaxFileSize(15728640)
                                    .MinFileSize(3000))
                                    .ShowFileList(true)
                                    .HtmlAttributes(new { aria_label = "files" })
                                )
                                @Html.ValidationMessageFor(model => model.files, "", new { @class = "text-danger" })
                            </div>
                        </div>
                    </div>
                </div>

viewmodel class

[Display(Name = "Upload relevant documents")]
public IEnumerable<HttpPostedFileBase> files { get; set; }








foreach (var file in vm.files)
{
       byte[] document = new byte[file.ContentLength];
       file.InputStream.Read(document, 0, file.ContentLength);

       RLADOCUMENT rd = new RLADOCUMENT
       {
           RLAFORMID = (int)entity.ID,
           DOCUMENTNAME = file.FileName,
           CONTENTTYPE = file.ContentType,
           DOCUMENTSIZE = document.Length,
           DOCUMENTDATA = document,
           CREATEDBY = Environment.UserName,
           CREATEDDATE = DateTime.Now,
           EXTENSION = Path.GetExtension(file.FileName)
       };
       _context.RLADOCUMENTS.Add(rd);
       _context.SaveChanges();
}

Can someone help me how to display already attached files in Edit Mode with remove and upload option and download the attached reports.

Upload

asked on 22 Apr 2024

1 answer

133 views

Custom Upload Template

How to display the "File(s) saved successfully in the Custom Kendo Upload Template.

Using the template below:

<span class='k-progress'></span>
<div class='file-wrapper'>
<span class='file-icon #=addExtensionClass(files[0].extension)#'></span>
<div class='file-heading file-name-heading'>Name: #=name#</div>
<div class='file-heading file-size-heading'>Size: #=kendo.toString(size/1024,"n2")# KB</div>
<div class="file-heading file-error-heading">
#if (files[0].error) { # <span class="k-file-validation-message"> #= files[0].error # </span> # } #
</div>
</div>

Upload

answered on 28 Mar 2024

1 answer

309 views

Kendo MVC upload control, validation doesn't display any message

I'm using Kendo v 2023.2.606 from the Kendo CDN.
In my view I have the following code:

<div class="row row-cols-lg-auto gx-3 gy-2 align-items-baseline mt-2">
    <div class="col">
        <h4>Choose File</h4>
        <!-- upload a file -->
        @(Html.Kendo().Upload()
            .Name("files")
            .Multiple(false)
            .ShowFileList(false)
            .Async(_ => _
                .Save("SubmitFile", "DataImport", new { Area = "Admin" })
                .Batch(true)
                .AutoUpload(true)
            )
            .Events(_ => _
                .Upload("onUpload")
                .Success("onUploadSuccess")
                .Error("onUploadFail")
            )
            .Validation(_ => _
                .AllowedExtensions(new string[] { "xls", "xlsx", "csv" })
                .MaxFileSize(3145728)
            )
        )
    </div>
</div>

If I select a file with an extension that is not listed, e.g. .zip, or I select a file that is more than 3.14MB all I see is this:

It does not hit my MVC controller action (which is fine) but the only indication of a problem is the (!) icon. The icon is not clickable.

Why is it not displaying a message saying the file is not valid/too big?

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answered on 20 Mar 2024

1 answer

96 views

Legacy versions for the trial package

Hi everyone, I need help with the trial plan. I'm currently using MVC version 5.2.7 in my project, but the version required for the Telerik trial version is 5.2.9. How can I get an older version?

Application

General Discussions

Installer and VS Extensions

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answered on 18 Oct 2023

1 answer

282 views

Upload .net core and MVC doesn't work in iOS

Has anyone else noticed that neither the .Net core or MVC upload module works when run under iOS? https://www.telerik.com/aspnet-core-ui/upload

If you try and upload anything you can never click submit.

You can try it on the demo here on any iOS device -

https://demos.telerik.com/aspnet-core/upload?_ga=2.7918193.219391470.1689953144-110638612.1682430985&_gl=1*wzaau5*_ga*MTEwNjM4NjEyLjE2ODI0MzA5ODU.*_ga_9JSNBCSF54*MTY4OTk1MzE0NC4xMS4xLjE2ODk5NTQxMDguNjAuMC4w

This seems to have broken when the move was made to go to Sass from Less a few months ago. It worked fine in Less. With it being such a major component it is something that you would hope gets fixed very quickly.

Upload

answered on 25 Jul 2023

1 answer

157 views

validation is not firing on Upload with other controls

I have a form as follows where it fires validation for text box controls but not for file upload

<form id="frmItem">
    <table class="table table-bordered">
        <thead class="bg-dark text-center text-white">
            <tr>
                <th colspan="2">Add/Modify Item</th>
            </tr>
        </thead>
        <tbody>
            <tr>
                <td style="width:404px;">Item ID Name</td>
                <td>
                    @(Html.Kendo().TextBox().Name("txtItemName")
                        .HtmlAttributes(new { placeholder = "Item ID Name", required = "required", validationmessage = "Enter Item ID Name" }))
                </td>
            </tr>
            <tr>
                <td>UN Number</td>
                <td>
                    @(Html.Kendo().TextBox().Name("txtUnNumber")
                        .HtmlAttributes(new { placeholder = "UN Number", required = "required", validationmessage = "Enter UN Number" }))
                </td>
            </tr>
            <tr>
                <td>Packing Instructions</td>
                <td>
                    @(Html.Kendo().TextBox().Name("txtPackingInstructions")
                        .HtmlAttributes(new { placeholder = "Packing Instructions", required = "required", validationmessage = "Enter Packing Instructions" }))
                </td>
            </tr>
            <tr>
                <td>SDS Sheet</td>
                <td>
                    @(Html.Kendo().Upload().Name("SdsSheet")
                        .Multiple(false)
                        .HtmlAttributes(new { required = "required" }))
                </td>
            </tr>
            <tr>
                <td>Cargo Only?</td>
                <td>@(Html.Kendo().CheckBox().Name("txtCargoOnly"))</td>
            </tr>
            <tr>
                <td>Example Shipment Ground (Fully Regulated)</td>
                <td>@(Html.Kendo().Upload().Name("GroundShipment"))</td>
            </tr>
            <tr>
                <td>Example Shipment Next Day Air (Fully Regulated)</td>
                <td>@(Html.Kendo().Upload().Name("NextDayShipment"))</td>
            </tr>
            <tr>
                <td>Example Shipment Freight (Fully Regulated)</td>
                <td>@(Html.Kendo().Upload().Name("FreightShipment"))</td>
            </tr>
            <tr>
                <td>Example Shipment Ground (Limited Quantity)</td>
                <td>@(Html.Kendo().Upload().Name("GroundShipmentLimited"))</td>
            </tr>
            <tr>
                <td>Example Shipment Next Day Air (Limited Quantity)</td>
                <td>@(Html.Kendo().Upload().Name("NextDayShipmentLimited"))</td>
            </tr>
            <tr>
                <td>Example Shipment Freight (Limited Quantity)</td>
                <td>@(Html.Kendo().Upload().Name("FreightShipmentLimited"))</td>
            </tr>
            <tr>
                <td colspan="2">
                    <button class="k-button k-button-solid-primary k-button-solid k-button-md k-rounded-md" type="submit">Submit</button>
                </td>
            </tr>
        </tbody>
    </table>
</form>
<script>
    $(document).ready(function () {
        var validator = $("#frmItem").kendoValidator().data("kendoValidator");

        $("#frmItem").submit(function (event) {
            event.preventDefault();

            if (validator.validate()) {
                
            } else {
                
            }
        });
    });
</script>