コード例 #1
0
        private void dataGridView1_ColumnHeaderMouseClick(object sender, DataGridViewCellMouseEventArgs e)
        {
            // sorting is handle by this event handler
            string strSortCol = this.dataGridView1.Columns[e.ColumnIndex].Name;

            if (strPrevSortCol.Trim().ToUpper() != strSortCol.Trim().ToUpper())
            {
                this.dataGridView1.Columns[strPrevSortCol].HeaderCell.SortGlyphDirection = System.Windows.Forms.SortOrder.None;
                strPrevSortCol = strSortCol;
                strSortOrder = "ASC";
            }

            if (this.dataGridView1.Columns[e.ColumnIndex].HeaderCell.SortGlyphDirection == System.Windows.Forms.SortOrder.Ascending)
            {
                this.dataGridView1.Columns[e.ColumnIndex].HeaderCell.SortGlyphDirection = System.Windows.Forms.SortOrder.Descending;
                strSortOrder = "DESC";
            }
            else if (this.dataGridView1.Columns[e.ColumnIndex].HeaderCell.SortGlyphDirection == System.Windows.Forms.SortOrder.Descending)
            {
                this.dataGridView1.Columns[e.ColumnIndex].HeaderCell.SortGlyphDirection = System.Windows.Forms.SortOrder.Ascending;
                strSortOrder = "ASC";
            }
            else
            {
                if (strSortOrder == "ASC")
                    this.dataGridView1.Columns[strSortCol].HeaderCell.SortGlyphDirection = System.Windows.Forms.SortOrder.Ascending;
                else
                    this.dataGridView1.Columns[strSortCol].HeaderCell.SortGlyphDirection = System.Windows.Forms.SortOrder.Descending;
            }

            dataGridView1.Rows.Clear();

            DataRetriever retriever = new DataRetriever(XmlFile, strSortCol, strSortOrder);
            memoryCache = new Cache(retriever, Page_Size);
            this.dataGridView1.RowCount = retriever.RowCount;
            dataGridView1.Refresh();
        }
コード例 #2
0
        private void LoadData(string strSortCol, string strSortOrder)
        {
            // this function will load data into data table
            dataGridView1.Rows.Clear();
            dataGridView1.Refresh();
            dataGridView1.Columns.Clear();
            dataGridView1.DataSource = null;

            try
            {
                DataRetriever retriever = new DataRetriever(XmlFile, strSortCol ,strSortOrder);
                memoryCache = new Cache(retriever, Page_Size);
                //foreach (DataColumn column in retriever.Columns)
                //{
                //    dataGridView1.Columns.Add(column.ColumnName, column.ColumnName);
                //}

                retriever.Columns.Cast<DataColumn>().ToList().ForEach(n => dataGridView1.Columns.Add(n.ColumnName, n.ColumnName));
                this.dataGridView1.RowCount = retriever.RowCount;
            }
            catch (Exception ex)
            {
                MessageBox.Show("Connection could not be established. " + "Verify that the connection string is valid.");
                Application.Exit();
            }

            // Adjust the column widths based on the displayed values.
            this.dataGridView1.AutoResizeColumns(DataGridViewAutoSizeColumnsMode.DisplayedCells);

            // set the sorting glyph initially when data load
            if (strSortOrder == "ASC")
            {
                this.dataGridView1.Columns[strSortCol].HeaderCell.SortGlyphDirection = System.Windows.Forms.SortOrder.Ascending;
            }
            else
            {
                this.dataGridView1.Columns[strSortCol].HeaderCell.SortGlyphDirection = System.Windows.Forms.SortOrder.Descending;
            }
        }