如何通过点击标题的checkbox获取DataGridview的引用？

Question

如何通过点击标题的checkbox获取父控件DataGridview的引用？winform的。
        /// <summary>
        /// 全选或取消全选
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void headCheckBoxClicked(object sender, DatagridviewCheckboxHeaderEventArgs e)
        {
            DataGridView dgv = ??
            try
            {
                foreach (DataGridViewRow row in (IEnumerable)dgv.Rows)
                {
                    row.Cells["IsCheck"].Value = e.CheckedState;
                }
            }
            catch (Exception exception)
            {
                MessageBox.Show(exception.Message);
            }
        }

Answer 1

直接用 this.dataGridView1 引用就可以了吧。

Answer 2

我的窗体有几个dataGridView，都有这个事件，我希望直接从事件中获取dataGridView，共用一个事件函数，而不用为每个dataGridView写不同的事件函数。

Answer 3

private DataGridView DataGridView1 = new DataGridView();
        private CheckBox CheckBox1 = new CheckBox();         public Form1()
        {
            InitializeComponent();
        }        private void Form1_Load(object sender, EventArgs e)
        {
            CheckBox1.CheckedChanged += CheckBox1_CheckedChanged;
            DataGridView1.CellPainting += DataGridView1_CellPainting;
            this.DataGridView1.AllowUserToResizeRows = false;
            this.DataGridView1.AllowUserToResizeColumns = false;
            this.DataGridView1.Dock = DockStyle.Fill;            this.DataGridView1.Columns.Add(new DataGridViewCheckBoxColumn());
            this.DataGridView1.Columns.Add("Column2", "Column2");            for (int i = 1; i <= 3; i++)
            {
                this.DataGridView1.Rows.Add(0, "Row" + i.ToString() + " Column2");
            }            this.CheckBox1.Visible = false;
            this.CheckBox1.Text = "CheckBox";            this.Controls.Add(DataGridView1);
            this.Controls.Add(CheckBox1); 
        }        private void CheckBox1_CheckedChanged(object send, System.EventArgs e)
        {
            for (int i = 0; i <= this.DataGridView1.RowCount - 1; i++)
            {
                this.DataGridView1.Rows.SharedRow(i).SetValues(CheckBox1.Checked);
            }
        }        private void DataGridView1_CellPainting(object sender, System.Windows.Forms.DataGridViewCellPaintingEventArgs e)
        {
            if (e.RowIndex == -1 & e.ColumnIndex == 0)
            {
                Point p = this.DataGridView1.GetCellDisplayRectangle(e.ColumnIndex, e.RowIndex, true).Location;
                p.Offset(this.DataGridView1.Left, this.DataGridView1.Top);
                this.CheckBox1.Location = p;
                this.CheckBox1.Size = this.DataGridView1.GetCellDisplayRectangle(e.ColumnIndex, e.RowIndex, false).Size;
                this.CheckBox1.Visible = true;
                this.CheckBox1.BringToFront();
            }
        } 

Answer 4

如果你的 DatagridviewCheckboxHeader 是继承自 DataGridViewColumnHeaderCell 的，那么
DataGridView dgv = (sender as DataGridViewColumnHeaderCell).DataGridView;