Question

我在自动排序datagridview时遇到问题。当我单击列标题一次时，它的值被排序但三角标记保持不变，因此它指向错误的方向。在第二次单击时，它是更改的三角形（现在将指向不同的方向，但在将其与datagridview中的值进行比较时更正）然后，排序过程重复 - 所以如果我想对列进行排序，我必须单击标题两次：首先更改方向标记/字形，然后再排序值。

我认为这不重要，但对于这个DGV，我使用BindingList作为数据源。

设计师代码：

        // 
        // dgv
        // 
        this.dgv.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
        this.dgv.Columns.AddRange( new System.Windows.Forms.DataGridViewColumn[] {
        this.monthColumn,
        this.colorColumn} );
        this.dgv.Location = new System.Drawing.Point( 22, 127 );
        this.dgv.Name = "dgv";
        this.dgv.Size = new System.Drawing.Size( 468, 164 );
        this.dgv.TabIndex = 0;
        this.dgv.CellBeginEdit += new System.Windows.Forms.DataGridViewCellCancelEventHandler( this.dgv_CellBeginEdit );
        this.dgv.CellClick += new System.Windows.Forms.DataGridViewCellEventHandler( this.dgv_CellClick );
        this.dgv.CellEndEdit += new System.Windows.Forms.DataGridViewCellEventHandler( this.dgv_CellEndEdit );
        this.dgv.RowsAdded += new System.Windows.Forms.DataGridViewRowsAddedEventHandler( this.dgv_RowsAdded );
        // 
        // monthColumn
        // 
        this.monthColumn.AutoSizeMode = System.Windows.Forms.DataGridViewAutoSizeColumnMode.AllCells;
        dataGridViewCellStyle3.Alignment = System.Windows.Forms.DataGridViewContentAlignment.MiddleCenter;
        this.monthColumn.DefaultCellStyle = dataGridViewCellStyle3;
        this.monthColumn.HeaderText = "Miesiące";
        this.monthColumn.Name = "monthColumn";
        this.colorColumn.ValueType = typeof( int );
        this.monthColumn.Width = 72;
        // 
        // colorColumn
        // 
        this.colorColumn.AutoSizeMode = System.Windows.Forms.DataGridViewAutoSizeColumnMode.Fill;
        dataGridViewCellStyle4.Alignment = System.Windows.Forms.DataGridViewContentAlignment.MiddleCenter;
        this.colorColumn.DefaultCellStyle = dataGridViewCellStyle4;
        this.colorColumn.HeaderText = "Barwa";
        this.colorColumn.Name = "colorColumn";
        this.colorColumn.SortMode = System.Windows.Forms.DataGridViewColumnSortMode.NotSortable;
        this.colorColumn.ValueType = typeof( System.Drawing.Color );

绑定程序：

        dgv.AutoGenerateColumns = false;
        monthColumn.DataPropertyName = "Months";
        colorColumn.DataPropertyName = "Color";
        colorColumn.ReadOnly = false;
        dgv.DataSource = bcolors;//BindingList
        dgv.Sort( monthColumn, ListSortDirection.Ascending );

事件方法用于将backgroundcolor应用于行并禁止编辑colorColumn（readonly不起作用？，但这不是重点）

Answer 1

您可以尝试更改列的sortmode吗？

改变这个：

this.colorColumn.SortMode = System.Windows.Forms.DataGridViewColumnSortMode.NotSortable;

进入这个：

this.colorColumn.SortMode = System.Windows.Forms.DataGridViewColumnSortMode.Automatic;

为什么datagridview需要双击才能对列进行排序

1 个答案: