DataJuggler.Blazor.FileUpload 7.2.2

BlazorFileUpload

This project was originally a wrapper of Steve Sanderson's BlazorFileInput, but now has been updated to the InputFile .NET component. This project has been updated to .NET 7.

6.21.2023: New Sample Project Blazor Gallery

Blazor Gallery is a C#, Blazor, SQL Server image portfolio site, allowing anyone to create up to five folders with up to 20 images per file.

Live Demo: https://blazorgallery.com

To see a complete working example, with source code please visit:

Blazor Gallery https://github.com/DataJuggler/BlazorGallery

Blazor Gallery can also be installed as a dotnet cli project: (You may change the top line to any directory you wish)

cd c:\Projects\BlazorGallery
dotnet new install DataJuggler.BlazorGallery
dotnet new DataJuggler.BlazorGallery

Another complete working example, with source code please visit:

<img src=https://excelerate.datajuggler.com/Images/ExcelerateLogoSmallWhite.png height=128 width=128> <img src=https://excelerate.datajuggler.com/Images/logotextsparkled.png>

Blazor Excelerate <br /> https://excelerate.datajuggler.com <br /> Code Generate C# Classes From Excel Header Rows

The source code for the above project is available at:

https://github.com/DataJuggler/Blazor.Excelerate

Here is an example of creating a file upload component:

@using DataJuggler.Blazor.FileUpload

<FileUpload CustomSuccessMessage="Your file uploaded successfully." 
    OnReset="OnReset" ResetButtonClassName="localbutton" ShowStatus="false"
    PartialGuidLength="12" MaxFileSize=@UploadLimit FilterByExtension="true" 
    ShowCustomButton="true"  ButtonText="Upload Excel" OnChange="OnFileUploaded"
    CustomButtonClassName="@OrangeButton" AllowedExtensions=".xlsx"
    ShowResetButton="false" AppendPartialGuid="true"
    CustomExtensionMessage="Only .xlsx extensions are allowed." 
    InputFileClassName="customfileupload" Visible=false Status="Refresh"
    FileTooLargeMessage=@FileTooLargeMessage>
</FileUpload>

To handle the File Upload event 'OnFileUploaded'. The code shown also starts a progress bar timer and reads the sheet names using Nuget package DataJuggler.Excelerate (the Nuget package that powers Blazor Excelerate).

#region OnFileUploaded(UploadedFileInfo file)
/// <summary>
/// This method On File Uploaded
/// </summary>
public void OnFileUploaded(UploadedFileInfo file)
{
    // if the file was uploaded
    if (!file.Aborted)
    {
        // Show the Progressbar
        ShowProgress = true;
        
        // if the ProgressBar
        if (HasProgressBar)
        {
            // Start the Timer
            ProgressBar.Start();
        }
        
        // Create a model
        GetSheetNamesModel model = new GetSheetNamesModel();
        
        // Set the model
        model.FullPath = file.FullPath;
        
        // Store this for later
        ExcelPath = file.FullPath;
        
        // reload the model
        HandleDiscoverSheets(model);
    }
    else
    {
        // for debugging only
        if (file.HasException)
        {
            // for debugging only
            string message = file.Exception.Message;
        }
    }
}
#endregion

Update

version 7.1.0 7.2.2023: DataJuggler.BlazorFileUpload now supports multiple file uploads.