動態更改datagridview選擇顏色c＃

Question

問題是，當我通過RowTemplate.DefaultCellStyle.SelectionBackColor在我的窗體構造函數中更改所選行的顏色時，它可以工作，但在用戶單擊某些按鈕以更改所選網格時，它不起作用背色！ 請任何幫助！

public Form1() 
{ 
    InitializeComponent(); 
    dataGridView1.RowTemplate.DefaultCellStyle.SelectionBackColor=Color.Red; //this  works fine 
} 
void button2_Click(object sender, EventArgs e) 
{ 
    dataGridView1.RowTemplate.DefaultCellStyle.SelectionBackColor=Color.Blue;//but this does not work 
} 

Answer 1

試試這個..

void dataGridView1_RowPrePaint(object sender, 
    DataGridViewRowPrePaintEventArgs e) 
{ 
    If (DatagridView1.Rows(DataGridView1.CurrentCell.RowIndex).Selected) 
    { 

    DataGridView1.Rows(DataGridView1.CurrentCell.RowIndex).DefaultCellStyle.SelectionBackColor=Color.Blue; 

    } 
} 

Answer 2

void button2_Click(object sender, EventArgs e) 
{ 
    foreach (DataGridViewRow row in dataGridView1.Rows) 
    { 
     row.DefaultCellStyle.SelectionBackColor = Color.Blue 
    } 
} 

更新：

void button2_Click(object sender, EventArgs e) 
{ 
    foreach (DataGridViewColumn col in dataGridView1.Columns) 
    { 
     col.DefaultCellStyle.BackColor = Color.Blue 
    } 
}