/// <summary>
/// Process user-initiated sort operation
/// </summary>
/// <history>
/// [msellers] 5/17/2007 Added
/// </history>
protected void grdDocuments_Sorting(object sender, GridViewSortEventArgs e)
{
var objCustomSortList = new ArrayList();
var objCustomSortColumn = new DocumentsSortColumnInfo();
var objCustomSortDirecton = Models.SortDirection.Ascending;
var 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)
{
var existingSort = ViewState ["CurrentSortOrder"].ToString();
if (existingSort.StartsWith(e.SortExpression, StringComparison.InvariantCulture) &&
existingSort.EndsWith("ASC", StringComparison.InvariantCulture))
{
objCustomSortDirecton = Models.SortDirection.Descending;
strSortDirectionString = "DESC";
}
}
// Set the sort
objCustomSortColumn.Direction = objCustomSortDirecton;
objCustomSortList.Add(objCustomSortColumn);
var docComparer = new DocumentViewModelComparer(objCustomSortList);
Documents.Sort(docComparer.Compare);
grdDocuments.DataSource = Documents;
grdDocuments.DataBind();
// Save the sort to viewstate
ViewState ["CurrentSortOrder"] = e.SortExpression + " " + strSortDirectionString;
}
ArrayList RetrieveSortColumnSettings()
{
// custom viewstate implementation to avoid reflection
var objSortColumnSettings = new ArrayList();
DocumentsSortColumnInfo objSortColumnInfo = null;
string strValues = null;
strValues = Convert.ToString(ViewState [VIEWSTATE_SORTCOLUMNSETTINGS]);
if (!string.IsNullOrEmpty(strValues))
{
foreach (string strSortColumnSetting in strValues.Split('#'))
{
objSortColumnInfo = new DocumentsSortColumnInfo();
objSortColumnInfo.ColumnName = strSortColumnSetting.Split(',') [0];
objSortColumnInfo.LocalizedColumnName = strSortColumnSetting.Split(',') [1];
objSortColumnInfo.Direction = (DocumentsSortColumnInfo.SortDirection)Enum.Parse(
typeof(DocumentsSortColumnInfo.SortDirection),
strSortColumnSetting.Split(',') [2]);
objSortColumnSettings.Add(objSortColumnInfo);
}
}
return(objSortColumnSettings);
}
void SaveSortColumnSettings(ArrayList objSettings)
{
// custom viewstate implementation to avoid reflection
DocumentsSortColumnInfo objSortColumnInfo = null;
string strValues = "";
foreach (DocumentsSortColumnInfo objSortColumnInfo_loopVariable in objSettings)
{
objSortColumnInfo = objSortColumnInfo_loopVariable;
if (strValues != string.Empty)
{
strValues = strValues + "#";
}
strValues = strValues + objSortColumnInfo.ColumnName + "," + objSortColumnInfo.LocalizedColumnName + "," + objSortColumnInfo.Direction.ToString();
}
ViewState [VIEWSTATE_SORTCOLUMNSETTINGS] = strValues;
}
protected void grdSortColumns_DeleteCommand(object source, DataGridCommandEventArgs e)
{
var objSortColumns = default(ArrayList);
var 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;
}
}
BindSortSettings(objSortColumns);
}
protected void lnkAddSortColumn_Click(object sender, EventArgs e)
{
var objSortColumns = default(ArrayList);
var objNewSortColumn = new DocumentsSortColumnInfo();
objSortColumns = RetrieveSortColumnSettings();
objNewSortColumn.ColumnName = comboSortFields.SelectedValue;
if (comboSortOrderDirection.SelectedValue == "ASC")
{
objNewSortColumn.Direction = Models.SortDirection.Ascending;
}
else
{
objNewSortColumn.Direction = Models.SortDirection.Descending;
}
objSortColumns.Add(objNewSortColumn);
BindSortSettings(objSortColumns);
}
/// -----------------------------------------------------------------------------
/// <summary>
/// Read settings from the screen into the passed-in DocumentsSettings object
/// </summary>
/// <remarks>
/// </remarks>
/// <history>
/// </history>
/// -----------------------------------------------------------------------------
void FillSettings()
{
string strDisplayColumns = "";
DocumentsDisplayColumnInfo objColumnInfo = null;
int intIndex = 0;
var objSortColumns = default(ArrayList);
string strSortColumnList = "";
DocumentsSortColumnInfo objSortColumn = null;
// ensure that if categories list is checked that we did have an available category
if ((chkUseCategoriesList.Checked && !lstNoListsAvailable.Visible))
{
// if so, set normally
Settings.UseCategoriesList = chkUseCategoriesList.Checked;
Settings.CategoriesListName = cboCategoriesList.SelectedValue;
}
else
{
// otherwise default values
Settings.UseCategoriesList = false;
Settings.CategoriesListName = "";
}
Settings.ShowTitleLink = chkShowTitleLink.Checked;
Settings.AllowUserSort = chkAllowUserSort.Checked;
Settings.GridStyle = comboGridStyle.SelectedItem.Value;
try {
DateTime.Now.ToString(textDateTimeFormat.Text);
Settings.DateTimeFormat = textDateTimeFormat.Text;
}
catch (Exception ex) {
Exceptions.LogException(ex);
Settings.DateTimeFormat = null;
}
if (folderDefaultFolder.SelectedFolder != null)
{
Settings.DefaultFolder = folderDefaultFolder.SelectedFolder.FolderID;
}
else
{
Settings.DefaultFolder = null;
}
var objColumnSettings = RetrieveDisplayColumnSettings();
intIndex = 0;
foreach (DocumentsDisplayColumnInfo objColumnInfo_loopVariable in objColumnSettings)
{
objColumnInfo = objColumnInfo_loopVariable;
// Figure out column visibility
objColumnInfo.Visible = ((CheckBox)grdDisplayColumns.Items [intIndex].Cells [1].FindControl("chkVisible")).Checked;
if (strDisplayColumns != string.Empty)
{
strDisplayColumns = strDisplayColumns + ",";
}
strDisplayColumns = strDisplayColumns + objColumnInfo.ColumnName + ";" + objColumnInfo.Visible.ToString();
intIndex = intIndex + 1;
}
Settings.DisplayColumns = strDisplayColumns;
objSortColumns = RetrieveSortColumnSettings();
foreach (DocumentsSortColumnInfo objSortColumn_loopVariable in objSortColumns)
{
objSortColumn = objSortColumn_loopVariable;
if (strSortColumnList != string.Empty)
{
strSortColumnList = strSortColumnList + ",";
}
strSortColumnList = strSortColumnList + (objSortColumn.Direction == DocumentsSortColumnInfo.SortDirection.Descending ? "-" : "") + objSortColumn.ColumnName;
}
Settings.SortOrder = strSortColumnList;
Settings.GridStyle = comboGridStyle.SelectedValue;
}
