Question

I need help formating a Time column in a GridView

Asked by: mainrotor

Hi all,
I have an ASP.Net application with C#.Net codebehind.  In My application I use a GridView with a Date and Time column.  The Time column in the GridView currently displays in a 24hr format  "HH:mm."  I want to change it so that the column displays in the following format "hh:mm:ss tt" , (for example 1:40:55 PM).  
I want to apply the formating to the GridView.  All the examples that I have seen do the formatting on the HTML/ASP code.  I need to do this on the C#.Net codebehind.  
I have included my code and an example of how the GridView currently displays.

Thanks in advance,
MRotor

DataTable t = new DataTable("name");
t.Columns.Add("Date");
t.Columns.Add("Time");
t.Columns.Add("Status");
 
int x = objMS.Milestones.Length; 
while (x >= 0)
{
  DataRow drow = t.NewRow();
  drow["Date"] = stringDateSplit1; 
  drow["Time"] = stringDateSplit2;
  drow["Status"] = strMilestone; 
  t.Rows.Add(drow);
  x--;
}
 
   DataView dv = new DataView(t);
   dv.Sort = ("[Date] DESC , [Time] DESC"); 
 
   GridView1.DataSource = dv;
   GridView1.DataBind();
   GridView1.Width = 700;
   GridView1.AllowPaging = true;
   GridView1.AllowSorting = true;
 
   for (int i = 0; i < GridView1.Columns.Count; i++)
   {
       GridView1.Columns[i].ItemStyle.Width = 175;
   }
 
       GridView1.Visible = true;
       t = null;
}
        objMS = null;
        service = null;
}

                                  
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  • GRID-4-1-.jpg
    • 12 KB

    Picture of how the Time column currently displays in the GridView

    Picture of how the Time column currently displays in the GridView

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Asked On
2009-06-15 at 20:54:58ID24494428
Tags

ASP.net

,

C#.Net

Topics

C# Programming Language

,

Programming for ASP.NET

,

Microsoft Visual C#.Net

Participating Experts
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Answers

 

by: ragi0017Posted on 2009-06-15 at 21:01:05ID: 24634789

you will have to use dataformatstring for the bound columns

DataFormatString examples:
{0:dd MMMM yyyy}    -    gives 24 February 2006
{0:MMM dd}    -    gives Feb 24 (substitue MMM with MMMM for the full month name instead of abbreviation)
{0:dd/MM/yy}    -    gives 24/02/06
{0:dd/MM/yyyy}    -    gives 24/02/2006

similarly you can do for the time part too
also set HtmlEncode="False" to the BoundField.

 

by: mainrotorPosted on 2009-06-15 at 22:03:23ID: 24634957

ragi0017,
That's exactly my dilemma, the columns are bound after the application executes.  There are no bound fields in my GridView, this is what my HTML/ASP code looks like:

<asp:GridView ID="GridView1" runat="server">
</asp:GridView>

Do you have syntax examples of how to use the DataFormatString in my code?

Thanks
MRotor :-)

 

by: AsishRajPosted on 2009-06-15 at 22:19:01ID: 24635026

 

by: techprocessPosted on 2009-06-15 at 22:27:18ID: 24635054

t.Columns.Add("Time", System.Type.GetType("System.String"));

now convert (stringDateSplit2) into proper format... using the formats given by ragi0017.....
hope this helps

or try to give GetType as system.datetime.

 

by: drypzPosted on 2009-06-15 at 22:48:57ID: 24635125

Hi! you can change the display format of your data under the RowDataBound event of your gridview. heres a sample.

.aspx page
 
        <asp:GridView ID="GridView1" runat="server" OnRowDataBound="GridView1_RowDataBound" >
        </asp:GridView>
 
.aspx.cs
 
    public partial class _Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            GridView1.DataSource = CreateTable();
            GridView1.DataBind();
        }
 
        private DataTable CreateTable()
        {
            DataTable newTable = new DataTable();
 
            newTable.Columns.Add("Column1");
            newTable.Columns.Add("Column2");
 
            DataRow row = newTable.NewRow();
            row["Column1"] = DateTime.Now;
            row["Column2"] = DateTime.Now;
 
            newTable.Rows.Add(row);
 
 
            return newTable;
        }
 
        protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
        {
            if (e.Row.RowType == DataControlRowType.DataRow)
            {
                string theDay = Convert.ToDateTime(e.Row.Cells[0].Text).ToString("MM/dd/yyyy");
                string theTime = Convert.ToDateTime(e.Row.Cells[1].Text).ToString("hh:mm:ss tt");
 
                e.Row.Cells[0].Text = theDay;
                e.Row.Cells[1].Text = theTime;
            }
        }
 
    }

                                              
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