Converting DataRow to DataRowView is not possible, but we can go around this by using DefaultView property of the Data Row Table. The following code example demonstrate how to get DataRowView out of DataRow: DataTable dt = new DataTable(); dt.Columns.Add("ID", typeof(int)); dt.Columns.Add("Name", typeof(string)); for (int i = 0; i < 10; i++) { DataRow tempDR = dt.NewRow(); tempDR["ID"] = (i...
I will show you three different methods to remove HTML tags from string in C#: 1. By using Regex: public static string RemoveHTMLTags(string html) { return Regex.Replace(html, "<.*?>", string.Empty); } 2. By using Compiled Regex for better performance: static Regex htmlRegex = new Regex("<.*?>", RegexOptions.Compiled); public static string RemoveHTMLTagsCompiled(string html) { return htmlRegex.Replace(html, string.Empty); } 3. By using Char Array for...
We will assume that we have a Label control called "Label1" on your Master Page, you might want to change the text of that Label.To do that write this code in your content page: Label lbl = new Label(); lbl = (Label)Master.FindControl("Label1"); lbl.Text = "Text"; Of course, this is all assuming the label is OUTSIDE the ContentPlaceHolder
This class uses a symmetric key algorithm (Rijndael/AES) to encrypt and decrypt data. As long as encryption and decryption routines use the same parameters to generate the keys, the keys are guaranteed to be the same. In a real-life application, this may not be the most efficient way of handling encryption, so as soon as...
This is a new feature in ASP .NET 2.0. The IButtonControl Interface contains a new property called PostBackUrl which points to the page to which the current page will postback, Button, ImageButton and LinkButton implements this interface and exposes the cross page postback functionality. When user clicks the button in the current page will postback...
In this article we are going to show two examples of exporting to excel. First one is how to export grid view control to excel and the second one is how to export data table to excel. 1-Export Grid View control to Excel: HtmlForm htmlForm = new HtmlForm(); string fileName = "attachment; filename=Reports.xls"; Response.ClearContent(); Response.AddHeader("content-disposition", fileName); Response.ContentType = "application/ms-excel"; StringWriter strw...
We are going to use Gmail outgoing mail server in our code here to demonstrate how you can send an email from your application using C# SmtpClient oSmtpClient = new SmtpClient(); oSmtpClient.Host = "smtp.gmail.com"; //The Outgoing mail server oSmtpClient.Credentials = new NetworkCredential("Your Email", "Your password"); oSmtpClient.Port = 587; oSmtpClient.DeliveryMethod = SmtpDeliveryMethod.Network; oSmtpClient.EnableSsl = true; MailMessage msg = new MailMessage("Email From", "Email...
What Captcha stand for? Completely Automated Public Turing test to tell Computers and Humans Apart. The Captcha technology help you to make sure your site is reasonably secure against automated attacks. Write the following code in a class named Captcha: public class Captcha { //make the captcha image for text public Bitmap MakeCaptchaImage(string txt, int width, int hight,...
In order to make all dates before the current date, not able to be selected, in the onDayRender event for your Calendar: if (e.Day.Date < DateTime.Today) { e.Day.IsSelectable = false; } To make it more obvious to the end user, also add: e.Cell.BackColor = Drawing.Color.GhostWhite; e.Cell.ForeColor = Drawing.Color.Gainsboro;
When a page loads, in order to get the name of the page that sent you there, all you need to use is: Request.UrlReferrer.ToString(); You can create a global variable to hold it: string sReferrer = ""; Then, in the Page_Load event, assign it: if (!Page.IsPostback) { sReferrer = Request.UrlReferrer.ToString(); } Or, you can put it in ViewState at...
