calculation in the gridview

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Is there any way that i can perform the calculation in the gridview and diplay it.
For example i have to calculate the "Age " by fetching the date of birth from database.

Added from comment:

I tryied just now with TemplateField below is the code

ASP.NET

<asp:TemplateField HeaderText="Age">
<%# Eval("CreatedOn", "{0:c0}")%>
<%# incrementsum(Eval("CreatedOn"))%>

and below is the incrementsum function :

JavaScript

<script   runat="server">
      int incrementsum(DateTime   CreatedOn)
      {
            DateTime dtage = new DateTime(CreatedOn);
            TimeSpan ts = DateTime.Now.Subtract(dtage);
            int age = ts.Days / 365;
            return (age);
      }
</script>

is not working.

Can you please tell me how to work with databound event with and example

Thank you in advance

Posted 5-Jan-12 4:04am

Roancho Khan

Updated 5-Jan-12 9:08am

Wendelius

v2

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Comments

darkDercane 5-Jan-12 10:07am

in the databound event you can do a simple calculation of the cells content :P you're seeking that? :P

Roancho Khan 5-Jan-12 10:25am

thank you fro the quick responce darkdercane.

I tryied just now with TemplateField below is the code

<asp:TemplateField HeaderText="Age">
<itemtemplate>
<%# Eval("CreatedOn", "{0:c0}")%>
<%# incrementsum(Eval("CreatedOn"))%>

and below is the incrementsum function :

<script runat="server">
int incrementsum(DateTime CreatedOn)
{
DateTime dtage = new DateTime(CreatedOn);
TimeSpan ts = DateTime.Now.Subtract(dtage);
int age = ts.Days / 365;
return (age);
}

</script>

is not working

Can you please tell me how to work with databound event with and example

Thank you in advance

devbtl 5-Jan-12 11:36am

javascript is another alternate for your problem

2 solutions

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RaviRanjanKr · Answer 1 · 2012-01-05T04:25:00

Solution 2

Try to write code at RowDataBound event of DataGridView

C#

if (e.Row.RowType == DataControlRowType.DataRow)
    {
        // add the Age to the running total variables
        Age += Convert.ToDecimal(DataBinder.Eval(e.Row.DataItem, _
          "Age"));
  
    }

For more reference have a look there[^]

Posted 5-Jan-12 4:25am

RaviRanjanKr

Updated 5-Jan-12 4:26am

v2

Roancho Khan · Answer 2 · 2012-01-06T03:53:00

Thank you RaviRanjankr, i was able to get age value, but now i am facing problem while sorting the age.below is the gridview code

XML

<asp:GridView ID="GridView1" runat="server" AllowPaging="True" AllowSorting="True" AutoGenerateColumns="False" EmptyDataText="Data Not Found !!!" Width="100%" DataSourceID="SqlDataSource1" PageSize="20" OnRowDataBound="GridView1_RowDataBound"  OnSorting="GridView1_Sorting" CssClass="gridviewheader">
       <FooterStyle BackColor="#383838" Font-Bold="True" ForeColor="White" Font-Names="Arial,Helvetica,sans-serif" Font-Size="9px"/>
       <RowStyle BackColor="#9f0000" ForeColor="white" Font-Names="Arial,Helvetica,sans-serif" Font-Size="9px" />
       <AlternatingRowStyle BackColor="#EFF3FB" ForeColor="#333333" />
       <Columns>


           <asp:BoundField DataField="SLNO" HeaderText="SL #" SortExpression="SLNO" ItemStyle-ForeColor="#9f0000" ItemStyle-BackColor="#f7d9b0">
           <ItemStyle HorizontalAlign="Center"></ItemStyle>
           </asp:BoundField>
           <asp:BoundField HeaderText="Age" SortExCan yopu
pression="Age">
           <ItemStyle HorizontalAlign="center"></ItemStyle>
           </asp:BoundField>


       </Columns>
       <PagerStyle BackColor="#e9b76b" ForeColor="#9f0000" HorizontalAlign="Center" />
       <SelectedRowStyle BackColor="#e9b76b" Font-Bold="True" ForeColor="#9f0000" />
       <HeaderStyle BackColor="#9f0000" Font-Bold="True" ForeColor="White" Font-Size="11px" Font-Names="Arial, Helvetcica, Sans-Serif" />
       <EditRowStyle BackColor="#e9b76b" />
       <AlternatingRowStyle BackColor="#e9b76b" ForeColor="#9f0000" />
       </asp:GridView>

--------------------------------------------------------------------------------
below is the sorting code
protected void GridView1_Sorting(object sender, GridViewSortEventArgs e)
{ //Get GridViewRows

var rows = GridView1.Rows.Cast<GridViewRow>().Select(a => new
{
Number = Convert.ToInt32(GridView1.DataKeys[a.RowIndex].Value),
NumberText = ((Label)a.FindControl("Label1")).Text
});
//Get Sort Direction accordingly
SortDirection sortDirection = ViewState["SortOrder"] == null ? SortDirection.Descending :
(SortDirection)Enum.Parse(typeof(SortDirection), ViewState["SortOrder"].ToString()) == SortDirection.Ascending ?
SortDirection.Descending : SortDirection.Ascending;
ViewState["SortOrder"] = sortDirection;

if (sortDirection == SortDirection.Ascending)
rows = rows.OrderBy(a => a.NumberText);
else
rows = rows.OrderByDescending(a => a.NumberText);

GridView1.DataSource = rows.ToList();
GridView1.DataBind();
}

Can you please help me to sort the value

Thank you in advance