Category Archives: ASP.NET

RegularExpressionValidator in ASP.NET

RegularExpressionValidator validation control in ASP.NET validates a control according to the regular expression (RegEx) set to its ValidationExpression property. Using this validation control we can specify a format of data that a control should accept using a RegEx. For example, we can validate a Phone number, Email, Zip Code etc using a RegularExpressionValidator control. Properties… Read More »

Validating list controls in ASP.NET using RequiredFieldValidator

RequiredFieldValidator control can be used to validate ASP.NET list controls like DropDownList, ListBox and RadioButtonList so that they cannot be left blank. Users must select a value from these list controls when validation has been applied. To validate a list control, we need to set InitialValue property of the RequiredFieldValidator along with other properties. Let… Read More »

How to avoid space occupied by an inactive validation control in ASP.NET

A validation control occupies space even if it is not showing any error. This is because by default Display property of the validation control is set to Static. For example, if we take two validation controls, one RequiredFieldValidator and one RangeValidator and if any of the validation fails, both the validation controls will consume their… Read More »

RangeValidator control in ASP.NET

RangeValidator validation control in ASP.NET is used to validate whether the value of a control is in a given range. It can validate Currency, Date, Double, Integer and String value. Properties of RangeValidator control Property Uses ControlToValidate It takes ID of the control you want to validate Type It specifies the type of data you… Read More »

CompareValidator control in ASP.NET

CompareValidator validation control in ASP.NET is used to validate an input control’s value by comparing it with another control’s value or a constant value. For example, we can use CompareValidator to validate controls if we want user to enter same value in two different controls, to compare value of a control with another control, to… Read More »

Validation controls in ASP.NET

Data validation is very important while accepting input from user. There may be different business logic for validating data. Some basic validation would be to validate a field to accept only numbers or a valid email address or phone number of a country in a specific pattern etc. ASP.NET provides some built-in controls for this… Read More »

Adding markers to Google Maps from database using ASP.NET

Introduction Here, I will explain how to add markers to Google Maps from SQL Server database using ASP.NET   Description Here first we will create a table “Locations” in the SQL Server database to store latitude and longitude of the places to which we want to add markers Step 1: Create table as following CREATE… Read More »

Adding Google Maps to your website

Introduction In this article I will explain how to integrate Google Maps to your website Description In this article we will use Google Maps JavaScript API v3 to show Google Maps in our website. First we will see how to get an API key required for Google Maps. Then we will create a simple map… Read More »

Using single event handler for multiple control’s event in Windows Forms and ASP.NET using C#, VB.NET

Introduction: In this post I will explain how to use single event handler for click event of multiple Button controls in Windows Forms and ASP.NET using C# and VB.NET Description: Event handling in Windows Forms Create a new Windows Forms application and four buttons on the form, “btnAdd”, “btnSubtract”, “btnMultiply” and “btnDivide”. Write following event… Read More »

Changing UICulture of master and content pages on button click in ASP.NET using C#, VB.NET

Download Source Code Introduction In this article I will explain how to change UICulture of master and content pages on button click in ASP.NET. This will enable users to select a language to view contents of a page/site. When user selects a language, UICulture of the page is set to that specific language and page… Read More »