Sorting ASP Datalist after BINDING - datalist

Question

I am binding a DataList with dynamic values (ie distances from google api From a particular location.)
ie from x location :
10 km away
15 km away etc as follows
Using this code in ItemDataBound :
private void bindDataList(string location)
{
DataSet dstProperty = Tbl_PropertyMaster.getPropertiesByLocation(location);
dlstNearbyProperties.DataSource = dstProperty;
dlstNearbyProperties.DataBind();
}
.
protected void dlstNearbyProperties_ItemDataBound(object sender, DataListItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Item ||
e.Item.ItemType == ListItemType.AlternatingItem)
{
Label lblPropId = (Label)e.Item.FindControl("lblPropId");
Label lblKmAway = (Label)e.Item.FindControl("lblKmAway");
Label lblPrice = (Label)e.Item.FindControl("lblPrice");
DataSet dstEnabledStat = Tbl_PropertyMaster.GetPropertyDetailsbyId(Convert.ToInt32(lblPropId.Text));
if (dstEnabledStat.Tables[0].Rows.Count > 0)
{
//string origin = "8.5572357 ,76.87649310000006";
string origin = InitialOrigin;
string destination = dstEnabledStat.Tables[0].Rows[0]["Latitude"].ToString() + "," + dstEnabledStat.Tables[0].Rows[0]["Longitude"].ToString();
lblKmAway.Text = devTools.getDistance(origin, destination) + " Away";
}
lblPrice.Text = getMinnimumOfRoomPrice(Convert.ToInt32(lblPropId.Text));
}
}
Is there a way to sort these value in ascendind or descening w.r.t distances .
NB: Distances are not DB values,they are dynamic.
Can this be sorted in a Button1_Click ?

Answer 1

Alrite after lot of hours of playing with codes I did it.
The following is for GRIDVIEW,Similar steps can be followed for DataList As well.
Page Load : I added an extra column 'Miles' to the already existing datatable
protected void Page_Load(object sender, EventArgs e)
{
dtbl = Tbl_PropertyMaster.SelectAllPropertyAndUserDetails().Tables[0];
dtbl.Columns.Add("Miles", typeof(int));
//userId = devTools.checkAdminLoginStatus();
if (!IsPostBack)
{
fillDlPhotoViewAll();
FillGrProperty();
}
}
Row Data Bound :
protected void grProperty_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
DataSet dstEnabledStat = Tbl_PropertyMaster.GetPropertyDetailsbyId(PropId);
if (dstEnabledStat.Tables[0].Rows.Count > 0)
{
string origin = InitialOrigin;
string destination = dstEnabledStat.Tables[0].Rows[0]["Latitude"].ToString() + "," + dstEnabledStat.Tables[0].Rows[0]["Longitude"].ToString();
decimal Kilometre=0.00M;
if(devTools.getDistance(origin, destination)!=0)
{
Kilometre=Convert.ToDecimal(devTools.getDistance(origin, destination))/1000;
}
lblmiles.Text = Kilometre.ToString() + "Kms";
dtbl.Rows[inn]["Miles"] = Convert.ToInt32(devTools.getDistance(origin, destination));
inn = inn + 1;
}
}
ViewState["dtbl"] = dtbl;
}
Sort by distance Button_Click:
protected void btnSort_Click(object sender, EventArgs e)
{
DataTable dataTable;
dataTable = (DataTable)ViewState["dtbl"];
if (dataTable.Rows.Count > 0)
{
dataTable.DefaultView.Sort = "Miles DESC";
dataTable.AcceptChanges();
grProperty.DataSource = dataTable;
grProperty.DataBind();
}
}