根据条件更改数据网格视图中图像的颜色 [英] Chnge Color of image in datagridview according condition

问题描述

您好，我的朋友正在开发一个基于窗口的项目，我从SQL数据库中获取学生的记录，并在Datagridview中显示.这些学生分为两个类别，例如商业，医学和艺术.问题是，如果该学生属于商业类别，那么我想在相关学生记录前面的Datagridview列中显示一个红色圆圈，如果他是医学类别，然后是黄色圆圈，如果是艺术类别，然后是绿色圆圈，我在设计时添加了该列，并使用图像类型列来显示圆圈并在其中放置圆圈的图像，但是如何更改颜色根据我的条件这张图片.

请帮助我，如果有人对此有任何想法，我非常需要它.

谢谢与问候

Parveen Rathi

Hi.. friends a window based project is being developed by me, I am getting the record of students from SQL database and show in Datagridview. The students are divided in different - 2 category for example Commerce, Medical and Arts.The problem is that if the student is in Commerce category then I want to show a red color circle in a Datagridview column in front of associated student record, if he is in Medical category then yellow color circle and if in Arts then green color circle, I add the column at design time and take an image type column to show circle and place an image of circle in it, but how can I change the color of this image according to my conditions.

Please help me I need it very urgent if anybody have some idea about it.

Thanks & Regards

Parveen Rathi

推荐答案

Itz非常简单.示例代码为:

Itz pretty simple. Sample code is:

private void myDataGridView_CellValueChanged(object sender, DataGridViewCellEventArgs e)
  {
   int colIndex = e.ColumnIndex;
   int rowIndex = e.RowIndex;

   if (rowIndex >= 0 && colIndex >= 0)
   {
    DataGridViewRow theRow = dataGridView1.Rows[rowIndex];
    if (theRow.Cells[colIndex].Value.ToString() == "Commerce")
     theRow.DefaultCellStyle.BackColor = Color.Red;
    elseif (theRow.Cells[colIndex].Value.ToString() == "Medical")
     theRow.DefaultCellStyle.BackColor = Color.Yellow;
    if (theRow.Cells[colIndex].Value.ToString() == "Arts")
     theRow.DefaultCellStyle.BackColor = Color.Green;
   }
  }

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