如何动态添加按钮名称和文本到gridview按钮

本文关键字：按钮 文本 gridview 添加 何动态 动态 | 更新日期: 2023-09-27 18:17:55

我以编程方式添加了登录按钮到DataGridView。我想检查字段logintime从数据库，如果它是空的按钮名称应该是login，否则它的名称应该是logout。

private void frmAttendance_Load(object sender, EventArgs e) 
{ 
    GetData();//Fetch data from database 
    DataGridViewButtonColumn buttonLogin = new DataGridViewButtonColumn(); 
     buttonLogin.Name = "Login"; 
    buttonLogin.Text = "Login"; 
    buttonLogin.UseColumnTextForButtonValue = true; 
    dataGridView1.Columns.Add(buttonLogin); 
    // Add a CellClick handler to handle clicks in the button column. 
    dataGridView1.CellClick += new DataGridViewCellEventHandler(dataGridView1_CellClick); 
}

如何动态添加按钮名称和文本到gridview按钮

要添加一个按钮列，您可以: 

var button=new DataGridViewButtonColumn();
button.Name="LoginButton";
button.HeaderText="Login";
button.Text = "Login";
button.UseColumnTextForButtonValue = true;
this.dataGridView1.Columns.Add(button);

动态设置按钮列文本

要在每个按钮上显示"Login"文本，只需设置:

button.Text = "Login";
button.UseColumnTextForButtonValue = true;

如果你需要为按钮设置不同的文本，你可以使用CellFormatting事件的DataGridView和设置这些单元格的值:

private void dataGridView1_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e)
{
    //If this is header row or new row, do nothing
    if (e.RowIndex < 0 || e.RowIndex == this.dataGridView1.NewRowIndex)
        return;
    //If formatting your desired column, set the value
    if (e.ColumnIndex=this.dataGridView1.Columns["LoginButton"].Index)
    {
        //You can put your dynamic logic here
        //and use different values based on other cell values, for example cell 2
        //this.dataGridView1.Rows[e.RowIndex].Cells[2].Value
        e.Value = "Login";
    }
}

您应该将此处理程序分配给CellFormating事件:

this.dataGridView1.CellFormatting += dataGridView1_CellFormatting;

您可以在循环中遍历DataGridView:

foreach(DataGridViewRow row in dataGridView1.Rows)
{
    DataGridViewCell cell = row.Cells[0] //Button column index.
    //Put your data logic here.
    cell.Value = "Login";
}

但是在这种情况下，你必须知道DataGridViewButtonColumn

的列索引
相关文章：