C#控件-显示边框的DataGridViewColumn-创新互联
默认我们的DataGridView cell是没有边框的，无伦是正常状态还是编辑状态，因为系统把TextBox的BorderStyle值改成了None，所以这里首先要把BorderStyle值改回来，那至于是FixedSingle还是Fixed3D,就得看你自己需要了,我这里改成了FixedSingle,方便绘制
主要是继承 DataGridViewTextBoxCell 类，需要在这里改点东西代码如下：
public class DataGridViewTextBoxEditCell : DataGridViewTextBoxCell
{
public override void InitializeEditingControl(int rowIndex, object initialFormattedValue, System.Windows.Forms.DataGridViewCellStyle dataGridViewCellStyle)
{
base.InitializeEditingControl(rowIndex, initialFormattedValue, dataGridViewCellStyle);
TextBox textBox = this.DataGridView.EditingControl as TextBox;
if (textBox != null)
{
textBox.BorderStyle = BorderStyle.FixedSingle;//改回边框
}
}
protected override void Paint(Graphics graphics, Rectangle clipBounds, Rectangle cellBounds, int rowIndex, DataGridViewElementStates cellState, object value, object formattedValue, string errorText, DataGridViewCellStyle cellStyle, DataGridViewAdvancedBorderStyle advancedBorderStyle, DataGridViewPaintParts paintParts)
{
base.Paint(graphics, clipBounds, cellBounds, rowIndex, cellState, value, formattedValue, errorText, cellStyle, advancedBorderStyle, paintParts);
//绘制边框
Rectangle cellBounds1 = new Rectangle(cellBounds.X + 2, cellBounds.Y + 1, cellBounds.Width - 4, cellBounds.Height - 3);
graphics.DrawRectangle(new Pen(SystemColors.WindowFrame), cellBounds1);
}
}
public class DataGridViewTextBoxEditColumn : DataGridViewColumn
{
public DataGridViewTextBoxEditColumn()
: base(new DataGridViewTextBoxEditCell())
{
}
public override DataGridViewCell CellTemplate
{
get
{
return base.CellTemplate;
}
set
{
// Ensure that the cell used for the template is a CalendarCell.
if (value != null &&
!value.GetType().IsAssignableFrom(typeof(DataGridViewTextBoxEditCell)))
{
throw new InvalidCastException("Must be a CalendarCell");
}
base.CellTemplate = value;
}
}
}
应用:
private void Form1_Load(object sender, EventArgs e)
{
DataTable dt = new DataTable();
dt.Columns.Add("name");
dt.Columns.Add("name1");
DataGridViewTextBoxEditColumn dataGridViewColumn = new DataGridViewTextBoxEditColumn();
dataGridViewColumn.HeaderText = "columns";
dataGridViewColumn.DataPropertyName = "name";
this.dataGridView1.Columns.Add(dataGridViewColumn);
DataGridViewTextBoxEditColumn dataGridViewColumn1 = new DataGridViewTextBoxEditColumn();
dataGridViewColumn1.HeaderText = "columns";
dataGridViewColumn1.DataPropertyName = "name1";
this.dataGridView1.Columns.Add(dataGridViewColumn1);
this.dataGridView1.AutoGenerateColumns = false;
this.dataGridView1.DataSource = dt;
}
应该还有更多好的办法，希望大家能批评改正另外有需要云服务器可以了解下创新互联scvps.cn，海内外云服务器15元起步，三天无理由+7*72小时售后在线，公司持有idc许可证，提供“云服务器、裸金属服务器、高防服务器、香港服务器、美国服务器、虚拟主机、免备案服务器”等云主机租用服务以及企业上云的综合解决方案，具有“安全稳定、简单易用、服务可用性高、性价比高”等特点与优势，专为企业上云打造定制，能够满足用户丰富、多元化的应用场景需求。
分享标题：C#控件-显示边框的DataGridViewColumn-创新互联
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