启用和禁用Datagridview中的单元格 [英] Enabling and disabling a cell in a Datagridview

问题描述

我正在使用DataGridView控件来显示一些数据。我需要启用一些数据，并根据网格中的某些值动态禁用一些数据。

有谁可以告诉我怎么做？

解决方案

要禁用一个单元格，它必须是只读的，并且以某种方式变灰。此功能启用/禁用DataGridViewCell：

  ///< summary> 
 ///在DataGridView中切换单元格的已启用状态。没有本地的
 ///支持禁用单元，因此需要这种方法。禁用状态
 ///表示单元格是只读的，并且显示为灰色。 
 ///< / summary> 
 ///< param name =dc>要启用/禁用的单元格< / param> 
 ///< param name =enabled>单元格是启用还是禁用< / param> 
 private void enableCell（DataGridViewCell dc，bool enabled）{
 // toggle只读状态
 dc.ReadOnly =！enabled; 
如果（启用）
 {
 //将单元格样式恢复为默认值
 dc.Style.BackColor = dc.OwningColumn.DefaultCellStyle.BackColor; 
 dc.Style.ForeColor = dc.OwningColumn.DefaultCellStyle.ForeColor; 
} 
 else {
 //灰色单元格
 dc.Style.BackColor = Color.LightGray; 
 dc.Style.ForeColor = Color.DarkGray; 
} 
} 
  

I am using a DataGridView control for displaying some data. I need to enable some data and disable some data dynamically based on some values in the grid.

Can anyone tell me how to do it?

解决方案

To "disable" a cell, it must be read-only and grayed out somehow. This function enables/disables a DataGridViewCell:

    /// <summary>
    /// Toggles the "enabled" status of a cell in a DataGridView. There is no native
    /// support for disabling a cell, hence the need for this method. The disabled state
    /// means that the cell is read-only and grayed out.
    /// </summary>
    /// <param name="dc">Cell to enable/disable</param>
    /// <param name="enabled">Whether the cell is enabled or disabled</param>
    private void enableCell(DataGridViewCell dc, bool enabled) {
        //toggle read-only state
        dc.ReadOnly = !enabled;
        if (enabled)
        {
            //restore cell style to the default value
            dc.Style.BackColor = dc.OwningColumn.DefaultCellStyle.BackColor;
            dc.Style.ForeColor = dc.OwningColumn.DefaultCellStyle.ForeColor;
        }
        else { 
            //gray out the cell
            dc.Style.BackColor = Color.LightGray;
            dc.Style.ForeColor = Color.DarkGray;
        }
    }

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