DateTimePicker1 >= DateTimePicker2

Garth Edmunds

I am very new to the C# world and I am trying to build a WindowsformApp that has the following fields on form1. I Have 4 datetimepicker fields in my windows form.

I would like if I pick a date in datetimepicker1 the other datetimepicker fields will react to be equal to or greater than as shown in the following.

datetimepicker1 <= datetimepicker2 <= datetimepicker3

datetimepicker3 >= datetimepicker2

datetimepicker3 <= datetimepicker4

4 Replies

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James Axsom8y ago
Accepted answer
Hi Garth.
Hope this helps!

Application Starts and all dates are the same

I change top date picker to date July 30.
Date 2 is equal or greater than Date 1
Date 3 is equal or greater than Date 2
Date 4 is equal or greater than Date 3

Code:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Data.SqlClient;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO;

namespace Sandbox2
{
    public partial class MyMainForm : Form
    {
        public MyMainForm()
        {
            InitializeComponent();
        }

        private void MyMainForm_Load(object sender, EventArgs e)
        {

        }

        private void dtpDate1_ValueChanged(object sender, EventArgs e)
        {
            DateTime dt = dtpDate1.Value;
            dtpDate2.Value = dt.AddDays(1);
            dtpDate3.Value = dt.AddDays(2);
            dtpDate4.Value = dt.AddDays(3);
        }
    }
}
Alright, Have a great day.
Garth Edmunds8y ago
James,

I tried the code and when I set the first date the rest of the dates will not change. Did I type in something wrong?

Garth

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO;
namespace DateTimePicker
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void dateTimePicker1_ValueChanged(object sender, EventArgs e)
{
DateTime dt = dateTimePicker1.Value;
dateTimePicker2.Value = dt.AddDays(1);
dateTimePicker3.Value = dt.AddDays(2);
dateTimePicker4.Value = dt.AddDays(3);
}
}
}
Garth Edmunds8y ago
I wish I could upload an image for the response but I do not know how... I am not sure how to explain this. I just have 4 datetimepickers on my form1. I have no code whatsoever
Amit Gupta8y ago
The question was little bit confusion for me. It would be useful if you provide sample data of datetimepicker and required expected output