Datagridview date sorting is not working

Question

1.80/5 (2 votes)

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Hi,
I am having a datagirdiew with one date column. in which when i sort the date column to ascending order, the date format is becoming like below:

see last 3 dates, here it was sorting with date and month but not year.
i want it as

What I have tried:

if (Rb_Date.Checked == true)
            {
                dgv_summary.Columns["Date"].ValueType = typeof(DateTime);
                this.dgv_summary.Sort(this.dgv_summary.Columns["Date"], ListSortDirection.Ascending);
            }

Can any one suggest a code to sort the datagridview column date with DATE/MONTH/YEAR..

Thanks in Advance.

Posted 29-Jan-18 18:26pm

chaitanya556

Updated 29-Jan-18 19:28pm

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Karthik_Mahalingam · Answer 1 · 2018-01-29T19:28:00

Solution 2

try like this

private void Form1_Load(object sender, EventArgs e)
       {
           DataTable dt = new DataTable();
           dt.Columns.Add("Date" );
           dt.Columns.Add("DateObjectHide",typeof(DateTime));
           dt.Rows.Add("27/01/2015");
           dt.Rows.Add("27/01/2016");
           dt.Rows.Add("27/01/2016");
           dt.Rows.Add("27/01/2017");
           dt.Rows.Add("27/01/2018");
           dt.Rows.Add("27/01/2018");
           dt.Rows.Add("27/01/2018");
           dt.Rows.Add("27/02/2018");
           dt.Rows.Add("27/02/2018");
           dt.Rows.Add("27/03/2016");
           dt.Rows.Add("27/04/2015");
           dt.Rows.Add("27/04/2016");
           dataGridView1.DataSource = dt;
           dt.AsEnumerable().ToList().ForEach(k => k["DateObjectHide"] = DateTime.ParseExact(k["Date"].ToString(), "dd/MM/yyyy", CultureInfo.CurrentCulture));
           dataGridView1.Columns["DateObjectHide"].Visible = false;

       }



       bool flag = false;
       private void buttonSort_Click(object sender, EventArgs e)
       {
           if(flag)
               this.dataGridView1.Sort(this.dataGridView1.Columns["DateObjectHide"], ListSortDirection.Ascending);
           else
               this.dataGridView1.Sort(this.dataGridView1.Columns["DateObjectHide"], ListSortDirection.Descending);
           flag = !flag;

       }

Posted 29-Jan-18 19:28pm

Karthik_Mahalingam

Updated 29-Jan-18 19:29pm

Comments

chaitanya556 30-Jan-18 21:42pm

Hi, It Didn't worked. actually im binding the data from the database.

Karthik_Mahalingam 30-Jan-18 21:50pm

however from database you will be getting datatable rite?
so you can apply the above logic.

chaitanya556 30-Jan-18 21:55pm

actually im binding like this:
Hide Copy Code

string sqlex="select * from Table";dap=new SqlDataAdapter(sqlex,connectionString);table=new DataTable();table.Columns.Add(new DataColumn(" ",typeof(bool)));dap.fill(table);datagridview1.DataSource=table;

Karthik_Mahalingam 30-Jan-18 22:03pm

you should add the column after binding the data to table.
after "fill" method.

Karthik_Mahalingam 30-Jan-18 22:14pm

string sqlex="select * from Table";
dap=new SqlDataAdapter(sqlex,connectionString);
table=new DataTable();
table.Columns.Add(new DataColumn(" ",typeof(bool)));
dap.fill(table);
 table.Columns.Add("DateObjectHide",typeof(DateTime));
datagridview1.DataSource=table;
  table.AsEnumerable().ToList().ForEach(k => k["DateObjectHide"] = DateTime.ParseExact(k["Date"].ToString(), "dd/MM/yyyy", CultureInfo.CurrentCulture));
           dataGridView1.Columns["DateObjectHide"].Visible = false;

chaitanya556 30-Jan-18 22:27pm

FormatException was unhandled

 k["DateObjectHide"] = DateTime.ParseExact(k["Date"].ToString(), "dd/MM/yyyy", CultureInfo.CurrentCulture));

"String was not recognized as a valid DateTime."

Karthik_Mahalingam 30-Jan-18 22:33pm

is there any null in Date column ?

chaitanya556 30-Jan-18 22:34pm

No... the date format will be as like "dd/MM/yyyy"

Karthik_Mahalingam 30-Jan-18 22:35pm

try this

 table.AsEnumerable().ToList().ForEach(k => {
                DateTime temp ;
                k["DateObjectHide"] = null;
                if( DateTime.TryParseExact(k["Date"].ToString(), "dd/MM/yyyy", CultureInfo.CurrentCulture, DateTimeStyles.None, out temp){
                     k["DateObjectHide"] = temp;
                }
            }
            );

chaitanya556 30-Jan-18 22:48pm

 k["DateObjectHide"]=null

is getting an ArgumentException was unhandled
Cannot set Column 'DateObjectHide' to be null. Please use DBNull instead.

i used DBNull instead of null.
but it got an error
'System.DBNull' is a 'type' but is used like a 'variable'

Karthik_Mahalingam 30-Jan-18 22:59pm

use DBNull.Value;

chaitanya556 30-Jan-18 23:06pm

i got an empty "DateObjectHide" column in that datatable

Karthik_Mahalingam 30-Jan-18 23:11pm

What is the value in date column.

chaitanya556 30-Jan-18 23:14pm

27/01/2018
like that...

Karthik_Mahalingam 31-Jan-18 0:04am

ok
try my code in a separate form and check the functionality.

debasish mishra · Answer 2 · 2018-01-29T19:28:00

Solution 1

dgv_summary.Columns["Date"].DefaultCellStyle.Format = "dd/MM/yyyy";

Try this code block before your sorting line of code.

Posted 29-Jan-18 19:28pm

debasish mishra

Comments

[no name] 31-Jan-18 2:37am

Let me know the reason to down vote?