comparing dates

Question

i have a textbox control which displays date (only in MM/dd/yyyy format) from database & a datetime picker for entering another date (usually current date but might be past or future date).When user pickes the date from datetime picker, i have to compare this date with textbox's date and throw some message.Can anyone help me in this matter? i tried with following codes
string textdate1 = textbox.text;
string textdate2 = datetimepicker1.text;
System.DateTime d1 = System.DateTime.Parse(textdate1);
System.DateTime d2 = System.DateTime.Parse(textdate2);

if (System.DateTime.Compare(d1, d2) < 0)
{
MessageBox.Show("date 2 is later then date 1");
}
its urgent plz...

ds ps · Answer

i did it with some tricks for date by splitting the date and taken date as required in my custom format and now it is ok. however i thank u for the efforts u've given for giving me solution.

Niradhip Chakraborty · Answer

Send your entire page code. I will check it in my end.

ds ps · Answer

you have given the same solution. there is no difference.... how can i overcome the existing problem?

Niradhip Chakraborty · Answer

Yes you are right. Please check carefully the following reply and do it same way to overcome the problem. private void dateTimePicker1_ValueChanged(object sender EventArgs e) { DateTime dt1 = dateTimePicker1.Value; DateTime dt2 = DateTime.Parse(textBox1.Text System.Globalization.CultureInfo.CreateSpecificCulture(en-US).DateTimeFormat);//Convert.ToDateTime(textBox1.Text); if (dt2 > dt1) { MessageBox.Show(Please select the date greater than textbox date); } } private void Form1_Load(object sender EventArgs e) { dateTimePicker1.Format = DateTimePickerFormat.Custom; dateTimePicker1.CustomFormat = MM/dd/yyyy; }

ds ps · Answer

i finally knew why its giving error... though the format for datetime picker control is MM/dd/yyyy it is taking value as dd/MM/yyyy.and the textbox control also taking the same format... so when i input 08/22/2009 it gives error but when i input 08/06/2009 it is working... so now how can i change the date format in both the controls? if u've answer then plz share for me.

Niradhip Chakraborty · Answer

I have no idea why it is not working at your end. Check it once again my previous reply. The code will surely work. Check the code. DateTime dt2 = DateTime.Parse(textBox1.Text System.Globalization.CultureInfo.CreateSpecificCulture(en-US).DateTimeFormat);

ds ps · Answer

Well u guys have helped me a lot but its making me mad.. as the same problem is coming when i execute the code. both of the solution didn't work  is there anything that i'm missing?? adding reference like such things..................... its really funny that the same thing works at ur side and not while i use.................

Kirtan Patel · Answer

Hi  take a Look at Fully Tested And Working Code . I have provided my Project Files Refer it if Still having problem after implementing Code . Link is at bottom of post dont forget to mark  Do you like Answer  it will give me some credits :) private void button1_Click( object sender EventArgs e) { if (textBox1.Text !=  || textBox2.Text !=  ) { //parse Both Dates From TextBoxes DateTime d1 = DateTime .Parse(textBox1.Text.Trim()); DateTime d2 = DateTime .Parse(textBox2.Text.Trim()); //Compare Dates if (d2 > d1) { MessageBox .Show( Date 2 is Greater!! ); } else { MessageBox .Show( Date 1 is Greater ); } } else { MessageBox .Show( Please Select Date From DateTime Picker ); } } private void dateTimePicker1_ValueChanged( object sender EventArgs e) { // Set Datetime Picker Date value in text Box textBox1.Text = dateTimePicker1.Value.Date.ToShortDateString(); } Download Project Files

Niradhip Chakraborty · Answer

private void dateTimePicker1_ValueChanged( object sender EventArgs e) { DateTime dt1 = dateTimePicker1.Value; DateTime dt2 = DateTime .Parse(textBox1.Text System.Globalization. CultureInfo .CreateSpecificCulture( en-US ).DateTimeFormat); //Convert.ToDateTime(textBox1.Text); if (dt2 > dt1) { MessageBox .Show( Please select the date greater than textbox date ); } } private void Form1_Load( object sender EventArgs e) { dateTimePicker1.Format = DateTimePickerFormat .Custom; dateTimePicker1.CustomFormat = MM/dd/yyyy ; }

ds ps · Answer

My value is 08/12/2009 i.e in MM/dd/yyyy format.i just wonder if that is giving error:( same format i have used on datetimepicker too.it may give problem on that tooisn't? however thanks for replying... and hope to get solution from u...

Niradhip Chakraborty · Answer

Can you please send me the value of the textbox. I just want to check the format. I have tried with passing in following format in textbox and it works for me. 25/10/2009

ds ps · Answer

i tried with the code provided by you but the string was not recognised as datetime error thrown on the following line: DateTime dt2 = Convert .ToDateTime(textBox1.Text) what should i do? i'm just stuck with this....

Niradhip Chakraborty · Answer

convert the textbox date to datetime. Check my previous reply.

ds ps · Answer

Thanks for the quick reply.but i still have problem in the line while converting textbox1.text value to datetime.here shows string is not recognised as datetime error shown.could you please help me......

Master Billa · Answer

Hi Your code is correct according your requirement display message and change the logic thank you

Niradhip Chakraborty · Answer

DateTime dt1 = dateTimePicker1.Value; DateTime dt2 = Convert .ToDateTime(textBox1.Text); if (dt2 >dt1) { MessageBox .Show( Please select the date greater than textbox date ); }