在datagridview中改变行backcolor [英] changing row backcolor in datagridview

问题描述

我在Windows窗体中改变行颜色有问题。我用列做了，并对Rows进行了相同的尝试，但它没有起作用。有人可以告诉我如何做吗？

我的代码到目前为止：

  public partial class Form1：Form 
 {
 public Form1（）
 {
 InitializeComponent（）; 
 abc（）; 
} 
 
 void abc（）
 {
 DataTable hh = new DataTable（）; 
 hh.Columns.Add（1，typeof（string））; 
 hh.Columns.Add（2，typeof（string））; 
 hh.Columns.Add（3，typeof（string））; 
 
 hh.Rows.Add（new object [] {a，b，c}）; 
 hh.Rows.Add（new object [] {a1，b1，c1}）; 
 hh.Rows.Add（new object [] {a2，b2，c2}）; 
 
 dataGridView1.DataSource = hh; 
 
 foreach（DataGridViewRow在dataGridView1.Rows中）//尝试将所有行更改为橙色
 dr.DefaultCellStyle.BackColor = Color.Orange; //但是它不起作用
 
 dataGridView1.Rows [0] .DefaultCellStyle.BackColor = Color.Orange; //不起作用
 dataGridView1.Refresh（）; 
 dataGridView1.Update（）; 
 
 dataGridView1.Columns [0] .DefaultCellStyle.BackColor = Color.Beige; //这个工程
 
 
} 
} 
  

解决方案

使用Datagridview CellPainting事件。只需复制此代码。

  if（e.RowIndex == -1）
 {
 SolidBrush br = new SolidBrush（Color.Blue）; 
 e.Graphics.FillRectangle（br，e.CellBounds）; 
 e.PaintContent（e.ClipBounds）; 
 e.Handled = true; 
} 
 else 
 {
 SolidBrush br = new SolidBrush（Color.Orange）; 
 e.Graphics.FillRectangle（br，e.CellBounds）; 
 e.PaintContent（e.ClipBounds）; 
 e.Handled = true; 
 
} 
  

如果检查它是否为标题。使用你想要的颜色..如果你不想画的标题只是擦除所有代码里面的if。

我想渐变backcolor告诉我。

编辑：

这是一个代码，用于绘制一种颜色的对行，并在另一种颜色中损坏。您必须使用Cellpainting事件。

  else 
 {
 if（e.RowIndex％2 == 0）
 {
 SolidBrush br = new SolidBrush（Color.Gainsboro）; 
 
 e.Graphics.FillRectangle（br，e.CellBounds）; 
 e.PaintContent（e.ClipBounds）; 
 e.Handled = true; 
} 
 else 
 {
 SolidBrush br = new SolidBrush（Color.White）; 
 e.Graphics.FillRectangle（br，e.CellBounds）; 
 e.PaintContent（e.ClipBounds）; 
 e.Handled = true; 
} 
} 
  

编辑2：细胞固定事件在哪里？ p>

I have Problem with changing rows color in Windows Forms. I did it with Columns and tried the same for Rows but it didn't work. Can someone show me how to do it?

My Code so far:

 public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();
        abc();
    }

    void abc()
    {
        DataTable hh = new DataTable();
        hh.Columns.Add("1", typeof(string));
        hh.Columns.Add("2", typeof(string));
        hh.Columns.Add("3", typeof(string));

        hh.Rows.Add(new object[] { "a", "b", "c" });
        hh.Rows.Add(new object[] { "a1", "b1", "c1" });
        hh.Rows.Add(new object[] { "a2", "b2", "c2" });

        dataGridView1.DataSource = hh;

        foreach (DataGridViewRow dr in dataGridView1.Rows) // trying to change all rows to orange
            dr.DefaultCellStyle.BackColor = Color.Orange;  // but it doesn't work

        dataGridView1.Rows[0].DefaultCellStyle.BackColor = Color.Orange; // doesn't work
        dataGridView1.Refresh();
        dataGridView1.Update();

        dataGridView1.Columns[0].DefaultCellStyle.BackColor = Color.Beige; // this works


    }
}

解决方案

Use the Datagridview CellPainting event. Just copy this code there.

        if (e.RowIndex == -1)
        {
            SolidBrush br= new SolidBrush(Color.Blue);
            e.Graphics.FillRectangle(br, e.CellBounds);
            e.PaintContent(e.ClipBounds);
            e.Handled = true;
        }
        else
        {
                SolidBrush br= new SolidBrush(Color.Orange);
                e.Graphics.FillRectangle(br, e.CellBounds);
                e.PaintContent(e.ClipBounds);
                e.Handled = true;

        }

The if checks if its a Header or not. Use the colors you want.. If you don´t want to paint the header just erase all the code inside the if.

I you want a gradient backcolor tell me..

EDIT:

Here is a code to paint pair rows in one color and impairs in another. You must use the Cellpainting event too..

else
        {
            if (e.RowIndex % 2 == 0)
            {
                SolidBrush br = new SolidBrush(Color.Gainsboro);

                e.Graphics.FillRectangle(br, e.CellBounds);
                e.PaintContent(e.ClipBounds);
                e.Handled = true;
            }
            else
            {
                SolidBrush br = new SolidBrush(Color.White);
                e.Graphics.FillRectangle(br, e.CellBounds);
                e.PaintContent(e.ClipBounds);
                e.Handled = true;
            }
        }

EDIT 2: Where the cellpainting event is?

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