Convert this sendgrid example to asp.net?

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• Why am i getting 'A column already belongs to this DataTable.' exception at dt.Columns.Add(header)?

  I have the following tsv file: (columns start from StyleName and end at Current Prod PS)

  StyleName   Desc    Box Count   MinPerQ1    MaxPerQ1    SNDContainsPS   SNDSpecifiedPSIs    CurrentCommonProdID ProductIDs  SND Indicates PS?   PS Specified In SND Is  Currently mapped to Current Prod PS
  Custom (Sphere Design)  Lens    1   357 357 0   NULL    398497  45222275    No  NA  __Misc GB | Vial    1
  PLASMA TREAT    PLASMA TREAT    1   11  11  0   NULL    -2  38953746    No  NA  __Unmappable    
  

  I am trying to convert the tsv file into a DataTable because after some research, I found that Datatable will make my use case easier to manipulate later on (I want to insert a column into this tsv file later on from another tsv file, which is outside the scope of this question).

  I am getting this error at dt.Columns.Add(header);:

  'A column named 'SND Indicates PS?' already belongs to this DataTable.'

  Why is that? I searched for the SND Indicates PS? keyword and the only one i see is the column name, theres no duplicates whatsover...so how come this exception is being thrown?

      public static DataTable ConvertCSVtoDataTable(string strFilePath, char delimiter = '\t')
      {
          DataTable dt = new DataTable();
          using (StreamReader sr = new StreamReader(strFilePath))
          {
              string[] headers = sr.ReadLine().Split(delimiter);
              foreach (string header in headers)
              {
                  dt.Columns.Add(header);
              }
              while (!sr.EndOfStream)
              {
                  string[] rows = sr.ReadLine().Split(delimiter);
                  DataRow dr = dt.NewRow();
                  for (int i = 0; i < headers.Length; i++)
                  {
                      dr[i] = rows[i];
                  }
                  dt.Rows.Add(dr);
              }
          }
          return dt;
      }
  
• Why Point with random X and Y results always on the same line?

  I know that Random isn't totally random and it gives same result repeatedly if use it with a very little span. However, i was just playing around with it and came up with a very interesting result.

  Here is the result :

  Here is my code :

  private void Form1_Load(object sender,EventArgs e)
  {
     timer1.Enabled = true;
     timer1.Interval = 1000;//i was hoping that interval will change result but no luck.
  }
  
  
  
  
  private void timer1_Tick(object sender,EventArgs e)
  {
      Label label = new Label();
      label.Visible =true;
      label.Text = "  ";
      label.AutoSize = true;
      Random rndX = new Random();
      Random rndY = new Random();//I know i don't actually need this.
      Point point = new Point(){X=rndX.Next(0,1000),Y=rndY.Next(0,1000)};
      label.Location = point;
      label.BackColor = Color.FromArgb(rnd.Next(1,255),rnd.Next(1,255),rnd.Next(1,255));
      this.Controls.Add(label);
   }
  

  Why is random behaving like this?

  Also is there a way to make this truely random?
• Remove punctation within string

  I would like to remove a punctation within a string. The punctuation before a space should be preserved. Double punctuation should also not be removed.

  Hel-lo World --> Hello World
  Hel.lo Wo-rld --> Hello World
  approx. age --> approx. age
  approx.-age --> approx.-age
  

  So far i got this. But it replaces all punctations ... and covers only case 1 and 2

  Regex.Replace("Hel-lo World!", @"[^\w\s]", "");
  
• how to get all controls of aspx page without running in browser

  I have aspx page which may controls. I want get all controls of aspx page without running into browser. Means by taking physical path, I want to get list of all controls from aspx.

  for example - I have following aspx page and I want to get all controls(textbox and label) and their attributes.

  <%@ Page Title="Home Page" Language="VB" MasterPageFile="~/Site.Master" AutoEventWireup="true" 
  CodeBehind="Default.aspx.vb" Inherits="WebApplication1._Default" %>
  
  <asp:Content ID="BodyContent" ContentPlaceHolderID="MainContent" runat="server">
  
  <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
  <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
  
  </asp:Content>
  
• using select options to get value in asp.net razor page

  I want to create a select option to input one of a few fixed values and have it return a matching value to a variable similar to how the input text fields, how would I do this? This was my attempt, the <input type="text"> works fine but the select types return null.

  <div class="text-center">
      <h1 class="display-4">Add new patient</h1>
      <form method="post">
          <input type="text" asp-for="patientModel.PatientID" placeholder="Patient ID" />
          <input type="text" asp-for="patientModel.FirstName" placeholder="First Name" />
          <input type="text" asp-for="patientModel.SecondName" placeholder="Second Name" />
          <input type="text" asp-for="patientModel.Location" placeholder="Location" />
          <select id="active" name="active" asp-for="patientModel.Sex">
              <option value="ACTIVE">MALE</option>
              <option value="INACTIVE">FEMALE</option>
              <option value="OTHER">OTHER</option>
          </select>
          <select id="active" name="active" asp-for="patientModel.Active">
              <option value="ACTIVE">ACTIVE</option>
              <option value="INACTIVE">INACTIVE</option>
          </select>
  
          <button type="submit">Submit</button>
  
      </form>
  </div>
  

      public class addnewpatientModel : PageModel
      {
          [BindProperty]
          public PatientModel patientModel { get; set; }
          public void OnGet()
          {
  
          }
          public IActionResult OnPost()
          {
              return RedirectToPage("/index");
          }
  
      }
  
• Solution for contenteditable="true" property is not working for image tag when resize image in Chrome and Firefox

  I want to resize the image inside the img tag in a div. I am using contenteditable="true" property for the div. I am editing the content but I do not select the image and resize the image in chrome and firefox

  my code is simple

  div contenteditable="true" img src="img.png" div

  This code is working in the IE browser and I am selecting an image and also resize the image but in chrome and firefox, it won't work for me.

  Please give some solution. Thank you
• How to send a PDF using sendgrid to an email address?

  I'm trying to use the following code to send a pdf

  var html_to_pdf = require('html-pdf-node');
   var defer = Q.defer();
          let options = {format: 'A4', margin: {top: "20", left: "20", right: "20", bottom: "20"}};
          let html = "<p>Hi there,</p>";
          let file = {content: html};
          html_to_pdf.generatePdf(file, options).then(pdfBuffer => {
              var body = {
                  subject: "Your",
                  personalizations:
                      [{ to: [ { email: recipientEmail } ],
  
                          "dynamic_template_data": {
                              "senderName": senderName,
                              "name": recipientName,
                              "email": recipientEmail,
                              "body": recipientMessage,
                              "subscriptionCode": subscriptionCode
                          }
                      }],
                  to: [ { email: recipientEmail } ],
                  from: { email: "info@test.com", name: "test Team" },
                  content: [{type: "text/plain", value: "Hi there"}],
                  attachments: [
                      {
                          filename: "test.pdf",
                          content: btoa(pdfBuffer),
                          type: 'application/pdf',
                          disposition: 'attachment',
                      }
                  ]
              };
              this._sendEmail(body).then( (result) => {
                  defer.resolve(result);
              }).catch (error => {
                  defer.reject(error);
                  console.error(error);
              });
          }).catch (error => {
              defer.reject(error);
              console.error(error);
          });
          return defer.promise;
  

  Unfortunately, the pdf doesn't get sent? There is no error output. What am I doing wrong?
• How do we programmatically delete SendGrid account information for GDPR related requests?

  We use SendGrid to deliver our emails to our customers. We are implementing a light-weight internal infrastructure to handle GDPR requests from our customers. We would like to know how to forward relevant requests to Sendgrid, as our downstream dependency, to ensure complete deletion of our user information. I noticed from the below link that SendGrid is covered by Twilio's Data Protection Addendum, https://sendgrid.com/resource/general-data-protection-regulation-2/. But I could not find any definitive documentation around API support or actual deletion process with respect to GDPR at Twilio.

  If someone could point me to any relevant document or API, it would be helpful.

  Thanks, Dheeban
• Updating SendGrid contact custom fields via SendGrid API. Why isn't this working?

  I'm trying to update my SendGrid contacts and can't figure out why my attempts to update my contacts' custom fields are not working. My reserved fields (first_name, last_name, email) update, but my custom fields do not. Any ideas why?

  Documentation here: https://sendgrid.api-docs.io/v3.0/contacts/add-or-update-a-contact

      try:
          headers = {
              'authorization': f"Bearer {settings.SENDGRID_API_KEY}",
          }
          data = {
              "list_ids": [
                  # "Users" list
                  "7c2...d20"
              ],
              "contacts": [{
                  "email": user.email,
                  "first_name": user.first_name,
                  "last_name": user.last_name,
                  "custom_fields": {
                      "educator_role": user.educator_role,
                  }
              }]
          }
  
          response = requests.put("https://api.sendgrid.com/v3/marketing/contacts", headers=headers, data=json.dumps(data))
          if(response.status_code != 202):
              capture_message(f"Could not add user with email {user.email} to Sendgrid.", level="error")
      except:
          capture_message(f"Adding/updating SendGrid contact failed for {user.email}.", level="error")```