winfrom datagridview

Question

 我想做个功能 当datagridview 存在数据的时候 我直接把光标定位到datagridview 上面 进行键盘上下键移动操作
  代替 用鼠标在datagridview 上去点击   这个怎么实现呢？
     

Answer 1

C# WinFrom中DataGridView上下键控制选择单元格（代码示例）
开发工具：VS2008数据库：Access4.0实现功能：用户可以使用“上、下”键选择DataGridView某行某列，并且将选择的单元格高亮显示。示例代码：        /// <summary>
        /// 自定义存放显示DataGridView行数变量
        /// </summary>
        private int tempCountNum = -1;         /// <summary>
        /// 处理键盘弹起事件
        /// </summary>
        /// <param name="e"></param>
        private void ProcessKeyUp(KeyEventArgs e)
        {
             if (e.KeyCode == Keys.Up || e.KeyCode == Keys.Down)
            {
                if (e.KeyCode == Keys.Up)
                {
                    if (dgvResTable.Rows.Count > 0)
                    {
                        if (this.tempCountNum < 0)
                        {
                            this.tempCountNum = this.dgvResTable.Rows.Count;
                        }
                        if (tempCountNum > 0)
                        {
                            this.tempCountNum--;
                        }
                        this.dgvResTable.CurrentCell = this.dgvResTable.Rows[this.tempCountNum].Cells["NUM"];
                        this.dgvResTable.BeginEdit(true);
                    }
                }
                else if (e.KeyCode == Keys.Down)
                {
                    if (dgvResTable.Rows.Count > 0)
                    {
                        if ( tempCountNum >= 0 && tempCountNum < dgvResTable.Rows.Count)
                        {
                            tempCountNum++;
                            if (tempCountNum >= 0 && tempCountNum < dgvResTable.Rows.Count)
                            {
                                this.dgvResTable.CurrentCell = this.dgvResTable.Rows[this.tempCountNum].Cells["NUM"];
                                this.dgvResTable.BeginEdit(true);
                            }
                        }
                    }
                }
                
            }
      }
 

Answer 2

datagridview本身就可以通过上下左右键来移动，

Answer 3

CurrentCellChanged上下键事件
或者参考：
C# WinFrom中DataGridView上下键控制选择单元格（代码示例）
开发工具：VS2008数据库：Access4.0实现功能：用户可以使用“上、下”键选择DataGridView某行某列，并且将选择的单元格高亮显示。示例代码：        /// <summary>
        /// 自定义存放显示DataGridView行数变量
        /// </summary>
        private int tempCountNum = -1;         /// <summary>
        /// 处理键盘弹起事件
        /// </summary>
        /// <param name="e"></param>
        private void ProcessKeyUp(KeyEventArgs e)
        {
             if (e.KeyCode == Keys.Up || e.KeyCode == Keys.Down)
            {
                if (e.KeyCode == Keys.Up)
                {
                    if (dgvResTable.Rows.Count > 0)
                    {
                        if (this.tempCountNum < 0)
                        {
                            this.tempCountNum = this.dgvResTable.Rows.Count;
                        }
                        if (tempCountNum > 0)
                        {
                            this.tempCountNum--;
                        }
                        this.dgvResTable.CurrentCell = this.dgvResTable.Rows[this.tempCountNum].Cells["NUM"];
                        this.dgvResTable.BeginEdit(true);
                    }
                }
                else if (e.KeyCode == Keys.Down)
                {
                    if (dgvResTable.Rows.Count > 0)
                    {
                        if ( tempCountNum >= 0 && tempCountNum < dgvResTable.Rows.Count)
                        {
                            tempCountNum++;
                            if (tempCountNum >= 0 && tempCountNum < dgvResTable.Rows.Count)
                            {
                                this.dgvResTable.CurrentCell = this.dgvResTable.Rows[this.tempCountNum].Cells["NUM"];
                                this.dgvResTable.BeginEdit(true);
                            }
                        }
                    }
                }
                
            }
      }
 

Answer 4

CurrentCellChanged上下键事件
或者参考：
C# WinFrom中DataGridView上下键控制选择单元格（代码示例）
开发工具：VS2008数据库：Access4.0实现功能：用户可以使用“上、下”键选择DataGridView某行某列，并且将选择的单元格高亮显示。示例代码：        /// <summary>
        /// 自定义存放显示DataGridView行数变量
        /// </summary>
        private int tempCountNum = -1;         /// <summary>
        /// 处理键盘弹起事件
        /// </summary>
        /// <param name="e"></param>
        private void ProcessKeyUp(KeyEventArgs e)
        {
             if (e.KeyCode == Keys.Up || e.KeyCode == Keys.Down)
            {
                if (e.KeyCode == Keys.Up)
                {
                    if (dgvResTable.Rows.Count > 0)
                    {
                        if (this.tempCountNum < 0)
                        {
                            this.tempCountNum = this.dgvResTable.Rows.Count;
                        }
                        if (tempCountNum > 0)
                        {
                            this.tempCountNum--;
                        }
                        this.dgvResTable.CurrentCell = this.dgvResTable.Rows[this.tempCountNum].Cells["NUM"];
                        this.dgvResTable.BeginEdit(true);
                    }
                }
                else if (e.KeyCode == Keys.Down)
                {
                    if (dgvResTable.Rows.Count > 0)
                    {
                        if ( tempCountNum >= 0 && tempCountNum < dgvResTable.Rows.Count)
                        {
                            tempCountNum++;
                            if (tempCountNum >= 0 && tempCountNum < dgvResTable.Rows.Count)
                            {
                                this.dgvResTable.CurrentCell = this.dgvResTable.Rows[this.tempCountNum].Cells["NUM"];
                                this.dgvResTable.BeginEdit(true);
                            }
                        }
                    }
                }
                
            }
      }