Is there a way to display an encrypted file in PdfViewer ?

I created a file:

formatProvider = new Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.PdfFormatProvider();
formatProvider.ExportSettings.UserPassword = "xxx";
formatProvider.ExportSettings.IsEncrypted = true;

formatProvider.Export( ...)

And now I want to display it, but haven't found a place to pass a password to the viewer.
It's not displaying any error, it's just displaying - the correct number of - empty pages.

Hi there,

I've been tasked with migrating DataTable functionality to Telerik RadGridView in a C# WinForms app.

DataTable code sample:

   var taxColumn = new DataColumn();
   taxColumn.DataType = System.Type.GetType("System.String");
   taxColumn.ColumnName = "tax";
   taxColumn.Expression = "SUBSTRING('ABC',2,3)";

My attempt to do the equivalent using a RadGridView TextBoxColumn fails with "unknown function SUBSTRING()".

Is there any similar functionality in RadGridView to the Substring function in DataColumn please? It's essential to be able to write expressions that do substirng operations in the app I'm working on.

Thanks as ever for your help!

Kind regards, James

I am happy Telerik created these dialogs for aesthetic reasons.

Is there a way to restrict access to file operations (Delete, copy, et. al.)?? I want to restrict file functions that can be performed via these dialogs. For example, I want to prevent someone from copying files from a USB when selecting a folder or selecting a file.

Thanks,

Jim

Hi,

I need to build a solution to export text from PDF including their X,Y cordinates. 

Could it be done with PDFViewer or other Telerik product?

Best regards,
André

Hi, i read the documentation for "custom-sorting" and "Setting Sorting Programmatically" but that´s not my case.

i need a possibility to add a custom-sorting only for one column and sort with the data of a hidden column.

What´s the right way to do that?

Best regards

Martin

I am trying to achieve a similar experience as in your CardView demo with the cities. The images are stored as block blobs in an Azure storage account. The blobs have tags, which i want to expose , similar to the meta from the demo where we have city name, population, country).

As far as i saw, there is no direct integration for CloudBlockBlob, so i am trying to place this in a byte array in order to display. Yet the outcome is an empty box in the grid, for each item from the container. the blobs are correctly downloaded, verified by writing the fileContent byte array to disk via filestream.

Any idea on how to achieve this?

Thank you!

 public partial class Form1 : Form
    {
        string sasToken = "?st=2020-02-12T21%3A05%3A08Z&se=2021-02-13T21%3A05%3A00Z&sp=rl&sv=2018-03-28&sr=c&sig=*redacted*";
        public Form1()
        {
            InitializeComponent();
            
        }


        public List<IListBlobItem> MainBody3(string id)
        {
            StorageCredentials accountSAS = new StorageCredentials(sasToken);

            // Use these credentials and the account name to create a Blob service client.
            CloudStorageAccount account = new CloudStorageAccount(accountSAS, "storage_account_name", endpointSuffix: null, useHttps: true);

            CloudBlobClient client = account.CreateCloudBlobClient();
            CloudBlobContainer container = client.GetContainerReference("images-analyzed-sampled");

            BlobContinuationToken token = null;
            List<BlobInfo> blobi = new List<BlobInfo>();
            List<IListBlobItem> poze = new List<IListBlobItem>();
            BlobRequestOptions options = new BlobRequestOptions();
            var myResults = new DataSet();
            do
            {
                var result = container.ListBlobsSegmented(null, true, new BlobListingDetails(), 20, token, null, null);
                token = result.ContinuationToken;

                var blobs = result.Results;
                foreach (IListBlobItem item in blobs)
                {
                    var blob = item as CloudBlockBlob;

                    long fileByteLength = blob.Properties.Length;
                    byte[] fileContent = new byte[fileByteLength];
                    for (int i = 0; i < fileByteLength; i++)
                    {
                        fileContent[i] = 0x20;
                    }
                   
                    radCardView1.Items.Add(blob.DownloadToByteArray(fileContent, 0));

                }
            } while (token != null);


            return poze;

        }




        private bool HasMatchingMetadata(CloudBlockBlob blob, string term)
        {
            foreach (var item in blob.Metadata)
            {
                if (((item.Key.StartsWith("Tag") || (item.Key.StartsWith("PredictedImageType"))) && item.Value.Equals(term, StringComparison.InvariantCultureIgnoreCase)))
                    return true;
            }

            return false;
        }

        private void radButton1_Click(object sender, EventArgs e)
        {
            MainBody3("");
        }
    }
    public class BlobInfo
    {
        public string ImageUri { get; set; }
        public string ThumbnailUri { get; set; }
        public string Caption { get; set; }
    }
}

public RadForm1() 
        {
            RadMapElement.VisualElementFactory = new MyMapVisualElementFactory();
            InitializeComponent();

            <..filling data and asigning clustering here>

        } 

public class MyMapVisualElementFactory : MapVisualElementFactory
    {
        public override MapCluster CreateCluster()
        {
            System.Diagnostics.Debug.WriteLine("FIRE!");
            return new MapCluster();
        }
    }

Hi, 

Can I load pictures via LoadImageFromUrl from a local disk without async methods?

The code below works, but it works poorly and often the images do not load, or not all are loaded.

Uri uri = new Uri(Path.Combine(Holder.TempPath, e.Url), UriKind.Absolute);

WebClient client = new WebClient();
client.OpenReadCompleted += (w, a) =>
    {
     if(a.Error == null)
      {
    try
     {
             e.ImageElement.Init(a.Result, new Telerik.WinControls.RichTextEditor.UI.Size(16, 16), extension);
     }
      catch
     {
       //Handle errors
      }
    }
    };
    client.OpenReadAsync(uri);

Hi,

i would like to change cursor for data field label in RadDataLayout, to make it work as hyperlink, I set it font as below, but can't find any cursor property, is it possible?

Private Sub RadDataLayout1_ItemInitialized(sender As Object, e As Telerik.WinControls.UI.DataLayoutItemInitializedEventArgs)

            Dim ci As DataLayoutControlItem = e.Item
            e.Item.Font = New System.Drawing.Font(e.Item.Font.Name, e.Item.Font.Size, FontStyle.Underline)

end sub

Thanks

Alex

Hi,

When the record count is more than 500, the loading time of the appointments on the scheduler, loading time of the unassigned calls & drag & drop the assigned calls on the scheduler is taking more time to load, as we have used for loop function for binding the records.

To reduce the time taken we have used parellel.for threading concept but this is not applicable for the below functions.

=> scheduler.Appointments.Add(appointment)
=> scheduler.PerformLayout()
=> scheduler.Refresh()

It is a big problem for us, Can you please suggest if there a concept/method to reduce the loading time in the radscheduler? 

Video link mentioned below for your reference.

Video Link : https://ttprivatenew.s3.amazonaws.com/pulse/suganya-gmail/attachments/12503756/TinyTake14-02-2020-05-55-27.mp4