c# - 在datagridview上选择复选框的解决方案

Question

将复选框列插入datagridview时，我使用以下代码，

DataGridViewCheckBoxColumn checkBoxColumn = new DataGridViewCheckBoxColumn(); dataGridView1.Columns.Add(checkBoxColumn);

当我尝试选择复选框时，它不是 selectecd （未选中或未选中），有没有更好的方法来做到这一点？

Answer 1

你可以用这篇文章

rotected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        //Check for the row type, which should be data row
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            //Find the check boxes and assign the values from the data source
            ((CheckBox)e.Row.FindControl("chkSelect")).Checked = Convert.ToBoolean(((DataRowView)e.Row.DataItem)[1]);
            ((CheckBox)e.Row.FindControl("chkAdd")).Checked = Convert.ToBoolean(((DataRowView)e.Row.DataItem)[2]);
            ((CheckBox)e.Row.FindControl("chkEdit")).Checked = Convert.ToBoolean(((DataRowView)e.Row.DataItem)[3]);
            ((CheckBox)e.Row.FindControl("chkAll")).Checked = Convert.ToBoolean(((DataRowView)e.Row.DataItem)[4]);

            //Find the checkboxes and assign the javascript function which should
            //be called when the user clicks the checkboxes.

            ((CheckBox)e.Row.FindControl("chkSelect")).Attributes.Add("onclick", "checkBoxClicked('" +
((CheckBox)e.Row.FindControl("chkSelect")).ClientID + "','" + ((CheckBox)e.Row.FindControl("chkAdd")).ClientID
+ "','" + ((CheckBox)e.Row.FindControl("chkEdit")).ClientID + "','" + ((CheckBox)e.Row.FindControl("chkAll")).ClientID + "'," + "'SELECT')");

            ((CheckBox)e.Row.FindControl("chkAdd")).Attributes.Add("onclick", "checkBoxClicked('" +
((CheckBox)e.Row.FindControl("chkSelect")).ClientID + "','" + ((CheckBox)e.Row.FindControl("chkAdd")).ClientID
+ "','" + ((CheckBox)e.Row.FindControl("chkEdit")).ClientID + "','" + ((CheckBox)e.Row.FindControl("chkAll")).ClientID + "'," + "'ADD')");

            ((CheckBox)e.Row.FindControl("chkEdit")).Attributes.Add("onclick", "checkBoxClicked('" +
((CheckBox)e.Row.FindControl("chkSelect")).ClientID + "','" + ((CheckBox)e.Row.FindControl("chkAdd")).ClientID
+ "','" + ((CheckBox)e.Row.FindControl("chkEdit")).ClientID + "','" + ((CheckBox)e.Row.FindControl("chkAll")).ClientID + "'," + "'EDIT')");

            ((CheckBox)e.Row.FindControl("chkAll")).Attributes.Add("onclick", "checkBoxClicked('" +
((CheckBox)e.Row.FindControl("chkSelect")).ClientID + "','" + ((CheckBox)e.Row.FindControl("chkAdd")).ClientID
+ "','" + ((CheckBox)e.Row.FindControl("chkEdit")).ClientID + "','" + ((CheckBox)e.Row.FindControl("chkAll")).ClientID + "'," + "'ALL')");

        }
    }

Answer 2

您只是在 gridview 中添加一列，但在为 gridview 分配数据源时。将 gridview 与数据源绑定以访问行以选中或取消选中复选框。

根据评论进行编辑。

您可以使用 RowDataBound 事件在 bihnding 期间使用带有数据源数据的网格视图的行实例来启用/禁用复选框。

void gridview1_RowDataBound(object sender, GridViewRowEventArgs e)
{
  if (e.Row.RowType == DataControlRowType.DataRow)
  {
       CheckBox chk = (CheckBox)e.Row.FindControl("chkBoxID");
       if(DataBinder.Eval(e.Row.DataItem, "datasourceColumnName").ToString() == "someval")
             chk.Enabled = false;
  }
}