Date format in Date Parameter

Question

Hi In a Date Parameter is it possible that we can specify Date Format so User can enter date in dd/MM/yyyy format Thanks

Muhammad Imran Ansari · Answer

Hi Ramco Yes you can specify a date format for a parameter as per your requirment. If you are working on windows form you can specify as below: dateTimePicker1.Format = DateTimePickerFormat.Custom; dateTimePicker1.CustomFormat = dd/MM/yyyy; For MVC you can specify a custom DateFormat attribute to control how the date is displayed and parsed. [DisplayFormat(DataFormatString = {0:dd/MM/yyyy} ApplyFormatInEditMode = true)] public DateTime MyDate { get; set; }

Jignesh Kumar · Answer

Hello Ramco Best way to handle date format in crystal report is configure your date filed at application level in your c# code you can do this one DateTime userInput; if (DateTime.TryParseExact(userInputString dd/MM/yyyy CultureInfo.InvariantCulture DateTimeStyles.None out userInput)) { report.SetParameterValue(YourDateParameter userInput); } else { // Display any message if a date is not in correct format MessageBox.Show(Please enter the date in dd/MM/yyyy format.); }

Jaish Mathews · Answer

In C# you can enforce a specific date format such as dd/MM/yyyy  when accepting date input from users. However this depends on the context in which the date input is handled (e.g. console application web application or desktop application). Here's how you can achieve it: 1. Console Application You can parse user input into a DateTime object using a specific format: using System; using System.Globalization; class Program { static void Main() { Console.WriteLine(Enter a date in dd/MM/yyyy format:); string input = Console.ReadLine(); if (DateTime.TryParseExact(input dd/MM/yyyy CultureInfo.InvariantCulture DateTimeStyles.None out DateTime parsedDate)) { Console.WriteLine($You entered: {parsedDate.ToString(dd/MM/yyyy)}); } else { Console.WriteLine(Invalid date format. Please enter the date in dd/MM/yyyy format.); } } } This uses DateTime.TryParseExact to validate and parse the input. 2. Web Application (ASP.NET/Blazor) a) ASP.NET MVC or Razor Pages You can enforce a date format using the [DataType] or [DisplayFormat] attributes: public class MyModel { [DisplayFormat(DataFormatString = {0:dd/MM/yyyy} ApplyFormatInEditMode = true)] [DataType(DataType.Date)] public DateTime MyDate { get; set; } } In the view ensure you use a date input that supports the format: b) Blazor In Blazor Server use an InputText with custom parsing logic to enforce the format: @Message @code { private string DateInput { get; set; } private string Message { get; set; } private void ValidateDateFormat() { if (DateTime.TryParseExact(DateInput dd/MM/yyyy null System.Globalization.DateTimeStyles.None out DateTime date)) { Message = $Valid date: {date.ToString(dd/MM/yyyy)}; } else { Message = Invalid date. Please use the dd/MM/yyyy format.; } } } 3. Windows Forms or WPF For desktop applications you can use a MaskedTextBox to enforce a format like dd/MM/yyyy : Windows Forms: MaskedTextBox maskedTextBox = new MaskedTextBox(00/00/0000); // Mask for dd/MM/yyyy maskedTextBox.ValidatingType = typeof(DateTime); maskedTextBox.TypeValidationCompleted += (sender e) => { if (!e.IsValidInput) { MessageBox.Show(Invalid date. Please use the dd/MM/yyyy format.); } }; WPF: Use a TextBox with validation logic or bind to a date picker with a custom format. Summary While it’s possible to specify a date format like dd/MM/yyyy  it’s essential to validate and parse the input properly. The actual implementation depends on the type of application and the control used for input.