c# - DataGridViewCellStyle.Padding 属性不是填充？

Question

我试图在我的 DataGridView 的单元格之间添加一些填充。使用这个 MSDN link ，我尝试使用 DataGridViewCellStyle.Padding 添加填充。但它没有显示。

我包括代码。我没有绑定(bind) DataGridView，而是通过 dataGridView1_CellFormatting 填充它，所以这可能是问题所在？

感谢任何帮助。谢谢。

public FormDgv()
{
    InitializeComponent();
    FillTable();
    SetDgvProperties();

}

public void SetDgvProperties()
{
    this.dataGridView1.DataSource = null;
    this.dataGridView1.Rows.Clear();
    this.dataGridView1.AllowUserToAddRows = false;
    this.dataGridView1.AllowUserToDeleteRows = false;
    this.dataGridView1.ReadOnly = true;
    this.dataGridView1.RowHeadersVisible = false;
    this.dataGridView1.ColumnHeadersVisible = false;
    this.dataGridView1.SelectionMode = DataGridViewSelectionMode.CellSelect;
    this.dataGridView1.RowTemplate.Height = 64;
    this.dataGridView1.CellFormatting += dataGridView1_CellFormatting;
    this.dataGridView1.ColumnCount = (int)table.Compute("Max(columnCount)", "");
    this.dataGridView1.RowCount = 8;
    dataGridView1.Refresh();
    Padding newPadding = new Padding(10, 10, 10, 10);
    this.dataGridView1.RowTemplate.DefaultCellStyle.Padding = newPadding;
}

DataTable table;
public void FillTable()
{
    table = GetData(connString);
}

void dataGridView1_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e)
{

    if (e.RowIndex >= 0 & e.ColumnIndex >= 0)
    {
        string filter = string.Format("orderNum={0} AND ZeroBasedCol={1}", e.RowIndex + 1, e.ColumnIndex);
        var row = table.Select(filter).FirstOrDefault();
        if (row != null)
        {
            var color = (Color)new ColorConverter().ConvertFrom(row["ColorNotFilled"]);
            e.CellStyle.BackColor = color;
            e.CellStyle.SelectionBackColor = color;
            e.CellStyle.SelectionForeColor = Color.White;
            e.CellStyle.ForeColor = Color.White;
            e.CellStyle.Alignment = DataGridViewContentAlignment.MiddleCenter;
        }
    }

}

Answer 1

填充的用途是在单元格边缘和它的内容之间提供一些空间。它对单元格之间的空间没有任何影响。

如果你想在单元格之间绘制更粗的网格线，你可以处理CellPainting事件并在单元格周围绘制边框:

void dataGridView1_CellPainting(object sender, DataGridViewCellPaintingEventArgs e)
{
    e.Paint(e.CellBounds, DataGridViewPaintParts.All);
    using (var pen = new Pen(this.dataGridView1.GridColor, e.CellStyle.Padding.All))
        e.Graphics.DrawRectangle(pen, e.CellBounds);
    e.Handled = true;
}

不要忘记将这些代码行添加到 Load 事件中:

this.dataGridView1.DefaultCellStyle.Padding = new Padding(5);
this.dataGridView1.BackgroundColor = SystemColors.Control;
this.dataGridView1.GridColor = SystemColors.Control;
this.dataGridView1.CellPainting += dataGridView1_CellPainting;

这是 DataGridView 的屏幕截图: