如何绑定到DatagridView Tooltip而不是Textbox
本文关键字:Tooltip Textbox DatagridView 何绑定 绑定 | 更新日期: 2023-09-27 18:28:20
我想让其中一列的工具提示使用obj.sometext中的文本,而不是为obj.someext添加新列。
dataGridView.DataSource= List<obj>;
我建议使用CellToolTipTextNeeded事件。调整Hans的代码示例生成
public class MyObject {
private string _name;
private int _age;
private string _tooltip;
public string Name {
get { return _name; }
set { _name = value; }
}
[Browsable(false)]
public string Tooltip {
get { return _tooltip; }
set { _tooltip = value; }
}
public int Age {
get { return _age; }
set { _age = value; }
}
}
private void Form1_Load(object sender, EventArgs e) {
List<MyObject> list = new List<MyObject>();
list.Add(new MyObject
{ Name = "my name", Tooltip="tooltip1", Age = 18 });
list.Add(new MyObject
{ Name = "just my other name", Tooltip="tooltip2", Age = 18});
this.dataGridView1.DataSource = list;
}
private void dataGridView1_CellToolTipTextNeeded(object sender,
DataGridViewCellToolTipTextNeededEventArgs e) {
if ((e.RowIndex > -1) && (e.ColumnIndex == this.dataGridView1.Columns["Name"].Index)) {
e.ToolTipText =
((MyObject)(dataGridView1.Rows[e.RowIndex].DataBoundItem)).Tooltip;
}
}
使用DataGridView
的CellFormating
事件设置单元格的工具提示。在自定义对象中,将"工具提示"属性标记为不可浏览,以指示DataGridView不为该属性生成列。
下面是一个小代码示例(设置"名称"列的工具提示):
public class MyObject
{
private string _name;
private int _age;
private string _tooltip;
public string Name
{
get { return _name; }
set { _name = value; }
}
[Browsable(false)]
public string Tooltip
{
get { return _tooltip; }
set { _tooltip = value; }
}
public int Age
{
get { return _age; }
set { _age = value; }
}
}
private void Form1_Load(object sender, EventArgs e)
{
List<MyObject> list = new List<MyObject>();
list.Add(new MyObject
{ Name = "my name", Tooltip="tooltip1", Age = 18 });
list.Add(new MyObject
{ Name = "just my other name", Tooltip="tooltip2", Age = 18});
this.dataGridView1.DataSource = list;
}
private void dataGridView1_CellFormatting(object sender,
DataGridViewCellFormattingEventArgs e)
{
if ((e.ColumnIndex == this.dataGridView1.Columns["Name"].Index) &&
e.Value != null)
{
DataGridViewCell cell =
this.dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex];
cell.ToolTipText =
((MyObject)(dataGridView1.Rows[e.RowIndex].DataBoundItem)).Tooltip;
}
}