Category: 3DW DevTools

Append options to a select element using javascript

//dynamically add 20 years from this year to drop-down

      var select = document.getElementById(“ccexp”);

      var startYear = new Date().getFullYear();

      var option, currentYear, currentYearString, currentYearTwoDigit;

      for (var i = 0; i <= 20; i++) {

          currentYear = startYear + i;

          currentYearString = currentYear.toString();

          currentYearTwoDigit = currentYearString.substring(2);

          option = document.createElement(“option”);

          option.setAttribute(“value”, currentYearTwoDigit);

          option.appendChild(document.createTextNode(currentYear));

          select.appendChild(option);

      }

Javascript to append options to a select element

select multiple elements by class, and loop through them with javascript

I have a table with elements in it. I need to target them and change the css class.

<div class="dwtooltip"><img src="note_icon.png" /><span class="dwtooltiptext">my tooltip text here.</span></div>

const items = document.querySelectorAll(‘.dwtooltip’);
if(items){

}
for (var i=0; i < items.length; i++) {
console.log(i);
items.forEach(function(el){
el.classList.add(“notooltip”);
el.classList.remove(“dwtooltip”);
});
}


Get the value from between parenthesis c#

Many times you have data in a format that needs to be parsed. One thing I have come across lately is needing to get a value from between parenthesis.

Data: Here is my description and it has a code.(1234)

I need to get the code of 1234 from the data.

string value = "Here is my description and it has a code.(1234)";
int startIndex = value.IndexOf('(');
int endIndex = value.IndexOf(')');
int length = endIndex - startIndex;
if (startIndex > -1 && endIndex > -1)
{
return value.Substring(startIndex + 1, length-1);
}
else   return "There are no parenthesis in the value.";

Local email delivery : Dump email from an app into a local directory for testing

While devving an app on localhost, the email  scripts error out and you cant test what the message would have looked like. With this handy snippet, you can dump any email from your app into a local directory. Slap this into your dev web config file.

<mailSettings>

    <smtp deliveryMethod="SpecifiedPickupDirectory">

      <specifiedPickupDirectory pickupDirectoryLocation="C:\MailDump\" />

      <network host="localhost"/>

    </smtp>

  </mailSettings>

 

Add an ID to the rows of a GridView table

It can be handy to have each row have an ID for use with client side scripting. By default the asp gridview does not come with ids for the rows. Use the row databound event to add them

protected void GridViewFullView_RowDataBound(object sender, GridViewRowEventArgs e)
{
     if (e.Row.RowType == DataControlRowType.DataRow)
     {
         GridViewRow row = e.Row;
          row.Attributes["id"] = GridViewFullView.DataKeys[e.Row.RowIndex].Value.ToString();
     }
}

Add “Please select” message to databound dropdown list c#

So you have dropdown lists, populated with data from your data storage solution.  You need to prepend the lists with messages such as “Please select an option”.

 

 public void addMessageToDropdown(DropDownList whatDropdown, string ddmessage)
 {
    DropDownList list = whatDropdown as DropDownList;
    if(list != null)
    {
      list.Items.Insert(0, ddmessage);
    }
 
 }

 

Add years to dropdown

Need a dropdown list with some years in it and a custom message as the first choice? How about this to start with: current year through 6 years into the future. Add a dropdownlist control to the page and call this function on pageload.

public void addYearsToDropdown(DropDownList whatDropdown, string ddmessage)
 {
      DropDownList list = whatDropdown as DropDownList;
      if(list != null)
      {
          list.Items.Insert(0, ddmessage);
      }
      int curYear = System.DateTime.Now.Year - 1;
      for(int i = 1; i < 6; i++)
      {
          list.Items.Insert(i, (curYear + i).ToString());
       }
 }

addMessageToDropdown(DropDownListYears, “–Select A Year–“);

Firewall and Web application security

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https://www.cloudflare.com/security/

Security

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  • DNSSEC

    DNSSEC is the Internet’s non-spoofable caller ID. It guarantees a web application’s traffic is safely routed to the correct servers so that a site’s visitors are not intercepted by a hidden “man-in-the-middle” attacker.
    Learn More

  • Web Application Firewall (WAF)

    Cloudflare’s enterprise-grade web application firewall (WAF) detects and block common application layer vulnerabilities at the network edge, utilising the OWASP Top 10, application-specific and custom rulesets.
    Learn More

  • Rate Limiting

    Rate Limiting protects critical resources by providing fine-grained control to block or qualify visitors with suspicious request rates.
    Learn More

  • SSL / TLS

    Transport Security Layer (TLS) encryption enables HTTPS connections between visitors and origin server(s), preventing man-in-the-middle attacks, packet sniffing, the display of web browser trust warnings, and more.
    Learn More

  • Secure Registrar

    Cloudflare is an ICANN accredited registrar, protecting organizations from domain hijacking with high-touch, online and offline verification for any changes to a registrar account.
    Learn More

  • Orbit

    Cloudflare Orbit solves security-related issues for Internet of Things devices at the network level.
    Learn More

  • Warp

    Automatically secure, accelerate, route, and load balance applications and services without directly exposing them to the internet.
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  • Workers

    Cloudflare Workers let developers run JavaScript Service Workers in Cloudflare’s 122 data centers around the world.
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    Secure, authenticate, and monitor user access to any domain, application, or path on Cloudflare.
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Checking boxes in a C# ASP checkbox list using values from a database

Suppose you have an ASP checkbox list and you need to check the boxes using data returned from the information storage.

You have a couple of ways the data could have been stored. If each checkbox option is a separate field in the database, you could go with a simple loop, but if they have been stored in one field, you need to put some programming power into it.

Here’s a scenario. I have a “seasons” checklist. There are values stored in the db that the user selected. For example if they chose Summer and Fall, the db string “seasons” would contain “Summer Fall”.

<asp:CheckBoxList ID="CheckBoxListSeasons" runat="server">
 <asp:ListItem>Summer</asp:ListItem>
 <asp:ListItem>Fall</asp:ListItem>
 <asp:ListItem>Winter</asp:ListItem>
 <asp:ListItem>Spring</asp:ListItem>
 </asp:CheckBoxList>

In order to display the list with the Summer and Fall boxes checked, I would do this:

string seasons = "Summer Fall"
for (int i = 0; i < CheckBoxListSeasons.Items.Count; i++)
 {

if (seasons.Contains(CheckBoxListSeasons.Items[i].Value))
 {

CheckBoxListSeasons.Items[i].Selected = true;
 }
 } // end checkbox loop