/// <summary>
/// Process user-initiated sort operation
/// </summary>
/// <param name="source"></param>
/// <param name="e"></param>
/// <remarks></remarks>
/// <history>
/// [msellers] 5/17/2007 Added
/// </history>
protected void grdDocuments_Sorting (object sender, GridViewSortEventArgs e)
{
ArrayList objCustomSortList = new ArrayList ();
DocumentsSortColumnInfo objCustomSortColumn = new DocumentsSortColumnInfo ();
DocumentsSortColumnInfo.SortDirection objCustomSortDirecton = DocumentsSortColumnInfo.SortDirection.Ascending;
string strSortDirectionString = "ASC";
// Set the sort column name
objCustomSortColumn.ColumnName = e.SortExpression;
// Determine if we need to reverse the sort. This is needed if an existing sort on the same column existed that was desc
if (ViewState ["CurrentSortOrder"] != null && ViewState ["CurrentSortOrder"].ToString () != string.Empty)
{
string existingSort = ViewState ["CurrentSortOrder"].ToString ();
if (existingSort.StartsWith (e.SortExpression) && existingSort.EndsWith ("ASC"))
{
objCustomSortDirecton = DocumentsSortColumnInfo.SortDirection.Descending;
strSortDirectionString = "DESC";
}
}
// Set the sort
objCustomSortColumn.Direction = objCustomSortDirecton;
objCustomSortList.Add (objCustomSortColumn);
var docComparer = new DocumentComparer (objCustomSortList);
mobjDocumentList.Sort (docComparer.Compare);
grdDocuments.DataSource = mobjDocumentList;
grdDocuments.DataBind ();
// Save the sort to viewstate
ViewState ["CurrentSortOrder"] = e.SortExpression + " " + strSortDirectionString;
// Mark as a user selected sort
IsReadComplete = true;
}
public ArrayList GetSortColumnList (string localResourceFile)
{
DocumentsSortColumnInfo objSortColumn = default(DocumentsSortColumnInfo);
string strSortColumn = null;
ArrayList objSortColumns = new ArrayList ();
//if (this.SortOrder != string.Empty) {
if (!string.IsNullOrEmpty (this.SortOrder))
{
foreach (string strSortColumn_loopVariable in this.SortOrder.Split(char.Parse(",")))
{
strSortColumn = strSortColumn_loopVariable;
objSortColumn = new DocumentsSortColumnInfo ();
// REVIEW: Original: if (Strings.Left(strSortColumn, 1) == "-") {
if (strSortColumn.StartsWith ("-"))
{
objSortColumn.Direction = DocumentsSortColumnInfo.SortDirection.Descending;
objSortColumn.ColumnName = strSortColumn.Substring (1);
}
else
{
objSortColumn.Direction = DocumentsSortColumnInfo.SortDirection.Ascending;
objSortColumn.ColumnName = strSortColumn;
}
objSortColumn.LocalizedColumnName = Localization.GetString (objSortColumn.ColumnName + ".Header", localResourceFile);
objSortColumns.Add (objSortColumn);
}
}
return objSortColumns;
}
protected void grdSortColumns_DeleteCommand (object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
{
ArrayList objSortColumns = default(ArrayList);
DocumentsSortColumnInfo objSortColumnToDelete = new DocumentsSortColumnInfo ();
objSortColumns = RetrieveSortColumnSettings ();
foreach (DocumentsSortColumnInfo objSortColumnToDelete_loopVariable in objSortColumns)
{
objSortColumnToDelete = objSortColumnToDelete_loopVariable;
if (objSortColumnToDelete.ColumnName == grdSortColumns.DataKeys [e.Item.ItemIndex].ToString ())
{
objSortColumns.Remove (objSortColumnToDelete);
break; // TODO: might not be correct. Was : Exit For
}
}
BindSortSettings (objSortColumns);
}
private ArrayList RetrieveSortColumnSettings ()
{
// Custom viewstate implementation to avoid reflection
ArrayList objSortColumnSettings = new ArrayList ();
DocumentsSortColumnInfo objSortColumnInfo = null;
string strValues = null;
strValues = Convert.ToString (ViewState [VIEWSTATE_SORTCOLUMNSETTINGS]);
if ((strValues != null) && strValues != string.Empty)
{
foreach (string strSortColumnSetting in strValues.Split(char.Parse("#")))
{
objSortColumnInfo = new DocumentsSortColumnInfo ();
objSortColumnInfo.ColumnName = strSortColumnSetting.Split (char.Parse (",")) [0];
objSortColumnInfo.LocalizedColumnName = strSortColumnSetting.Split (char.Parse (",")) [1];
objSortColumnInfo.Direction = (DocumentsSortColumnInfo.SortDirection)System.Enum.Parse (typeof(DocumentsSortColumnInfo.SortDirection), strSortColumnSetting.Split (char.Parse (",")) [2]);
objSortColumnSettings.Add (objSortColumnInfo);
}
}
return objSortColumnSettings;
}
protected void lnkAddSortColumn_Click (System.Object sender, System.EventArgs e)
{
ArrayList objSortColumns = default(ArrayList);
DocumentsSortColumnInfo objNewSortColumn = new DocumentsSortColumnInfo ();
objSortColumns = RetrieveSortColumnSettings ();
objNewSortColumn.ColumnName = comboSortFields.SelectedValue;
objNewSortColumn.LocalizedColumnName = LocalizeString (objNewSortColumn.ColumnName + ".Header");
if (comboSortOrderDirection.SelectedValue == "ASC")
{
objNewSortColumn.Direction = DocumentsSortColumnInfo.SortDirection.Ascending;
}
else
{
objNewSortColumn.Direction = DocumentsSortColumnInfo.SortDirection.Descending;
}
objSortColumns.Add (objNewSortColumn);
BindSortSettings (objSortColumns);
}
