DataGridView中内置控件常用事件使用心得-白红宇

DataGridView中内置控件常用事件使用心得

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发布时间：2019-06-12

本文共 3646 字，大约阅读时间需要 12 分钟。

checkbox,button,imagebutton使用dataGridView1_CellContentClick

private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)        {            tb.Text+=string.Format("\r\n{0}，Row:{1}，Column:{2}","单元格内容单击！",e.RowIndex,e.ColumnIndex);        }

combobox使用EditingControlShowing+DropDownClosed，此二事件结合使用可以做到内置combobox一下拉选择了就触发事件

private void dataGridView1_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)        {            tb.Text += string.Format("\r\n{0}，控件名:{1}", "单元格控件编辑！", e.Control.GetType());            if (e.Control.GetType().Equals(typeof(DataGridViewComboBoxEditingControl)))            {                    DataGridViewComboBoxEditingControl editingControl = e.Control as DataGridViewComboBoxEditingControl;                    try                    {                        editingControl.DropDownClosed -= new EventHandler(editingControl_DropDownClosed);                    }                    catch                    {                    }                    editingControl.DropDownClosed += new EventHandler(editingControl_DropDownClosed);            }            else if (e.Control.GetType().Equals(typeof(DataGridViewTextBoxEditingControl)))            {                    DataGridViewTextBoxEditingControl editingControl = e.Control as DataGridViewTextBoxEditingControl;                    try                    {                    }                    catch                    {                    }            }        }        private void editingControl_DropDownClosed(object sender, EventArgs e)        {            DataGridViewComboBoxEditingControl ctl = sender as DataGridViewComboBoxEditingControl;            int r = dataGridView1.CurrentCell.RowIndex;            int c = dataGridView1.CurrentCell.ColumnIndex;            tb.Text += string.Format("\r\n{0}，控件名:{1}", "单元格下拉框下拉！", ctl.GetType());            dataGridView1.CellValueChanged -= dataGridView1_CellValueChanged;        }

textbox一般只需要验证事件可使用dgvJointList_CellValidating

private void dgvJointList_CellValidating(object sender, DataGridViewCellValidatingEventArgs e)        {            int r = dgvJointList.CurrentCell.RowIndex;            int c = dgvJointList.CurrentCell.ColumnIndex;            if (dgvJointList.Columns["diameter"].Index == c ||                dgvJointList.Columns["thickness"].Index == c ||                dgvJointList.Columns["weldLength"].Index == c)            {                string txt = dgvJointList.CurrentCell.EditedFormattedValue.ToString();                string errorMsg;                if (!ValidNumericFF(txt, out errorMsg))                {                    e.Cancel = true;                    this.errorProvider1.SetError(dgvJointList, errorMsg);                }                else                {                    this.errorProvider1.SetError(dgvJointList, "");                }            }        }

单元格内容改变！，Row:-1，Column:0

单元格内容改变！，Row:-1，Column:1

单元格内容改变！，Row:-1，Column:2

单元格内容改变！，Row:-1，Column:3

单元格内容改变！，Row:-1，Column:4

单元格内容改变！，Row:-1，Column:5

单元格内容选择改变！，Row:0，Column:0

单元格控件编辑！，控件名:System.Windows.Forms.DataGridViewTextBoxEditingControl

点击checkboxcell

单元格验证！，Row:0，Column:0

单元格内容选择改变！，Row:0，Column:4

单元格单击！，Row:0，Column:4