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C#关于DataGridView控件的使用总结


2018-08-12 07:55:21 (1172)


DataGridView常用方法:
dataGridView1.ReadOnly = true;//全部单元格只读 
dataGridView1.Columns[1].ReadOnly = true;///指定单元格设置只读(列)第一列 
dataGridView1.Rows[2].ReadOnly = true;///指定单元格设置只读 (行)第二行 
dataGridView1[1, 2].ReadOnly = true;///指定单元格设置只读 (第1行,第2列)利用坐标 
dataGridView1.AllowUserToAddRows = false;//禁止用户追加行 
dataGridView1.AllowUserToDeleteRows = true;//允许用户删除行操作 
//提示是否删除指定行数据 
private void dataGridView1_UserDeletingRow(object sender, DataGridViewRowCancelEventArgs e)
        {
   DialogResult diaR = MessageBox.Show("删除该行吗?", "确认", MessageBoxButtons.OKCancel, MessageBoxIcon.Question); if (diaR == DialogResult.OK)
            {
                e.Cancel = false;
            }
}
//提示删除了哪一行数据
private void dataGridView1_UserDeletedRow(object sender, DataGridViewRowEventArgs e)
        {
            System.Text.StringBuilder messageBoxCS = new System.Text.StringBuilder(); 
messageBoxCS.AppendFormat("{0} = {1}", "行号为", e.Row); messageBoxCS.AppendLine(); 
DialogResult diaR = MessageBox.Show("删除了" + messageBoxCS.ToString(), "确认"); }
//删除选定的多行 foreach(  DataGridViewRow r in dataGridView1.SelectedRows)
 { if (r.IsNewRow == false)    {   ataGridView1.Rows.Remove(r);     }      
}
取得选定的行、列、单元格
//选定的单元格
            foreach (DataGridViewCell c in dataGridView1.SelectedCells)
            {
                string cr = string.Format("{0},{1}", c.ColumnIndex, c.RowIndex); listBox1.Items.Add("选定的单元格位置是:" + cr); }
//选定的行/列
            foreach (DataGridViewRow c in dataGridView1.SelectedRows)
            {
                listBox1.Items.Add("选定的行是:" + c.RowIndex); }
foreach (DataGridViewColumn c in dataGridView1.SelectedColumns)
            {
                listBox1.Items.Add("选定的列是:" + c.ColumnIndex); }
//指定选定单元格
         dataGridView1[0, 0].Selected = true; dataGridView1.Rows[0].Selected = true; 
dataGridView1.Columns[0].Selected = true; 
//设置行内容
            dataGridView1.Rows[0].HeaderCell.Value = "第1行"; 
//利用数组添加添加数据时,类型都是默认的字符串类型 
string name = "Jim"
string gender = "男"
string age = "18"; //将上面三个变量合成一个数组 
string[] row = { name, gender, age }; //给dataGridView1控件添加数据 
dataGridView1.Rows.Add(row);//添加数据 

/

/左上角的文字
            dataGridView1.TopLeftHeaderCell.Value = "左上角"; 
//列中显示选择框CheckBox
            DataGridViewCheckBoxColumn column1= new DataGridViewCheckBoxColumn(); {
                column1.HeaderText = "选择框"; column1.Name = "checkbox"; column1.AutoSizeMode =
                DataGridViewAutoSizeColumnMode.DisplayedCells; column1.FlatStyle = FlatStyle.Standard; //显示选择框的三种状态
                 column1.ThreeState = true; }
            dataGridView1.Columns.Add(column1); 
//显示按钮控件 DataGridViewButtonColumn col=new DataGridViewButtonColumn();
            col.Name="Button";
            col.UseColumnTextForButtonValue=true;
            col.Text = "按钮";
            dataGridView1.Columns.Add(col);
触发的事件为: private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)
        { if (dataGridView1.Columns[e.ColumnIndex].Name=="Button")
            {
                MessageBox.Show("触发了按钮");
            }
 }

单元格列显示图像的是:DataGridViewImageColumn

//显示图像
            DataGridViewImageColumn dgvI=new DataGridViewImageColumn(); 
dgvI.Name="Image";
 dgvI.ValuesAreIcons=false; 
dgvI.Image = new Bitmap("c://windows//Blue Lace 16.bmp"); 
dgvI.ImageLayout=DataGridViewImageCellLayout.Zoom;
 dgvI.Description="测试的图片"; dataGridView1.Columns.Add(dgvI);
 dataGridView1["Image", 0].Value = new Bitmap("c://windows//Blue Lace 16.bmp"); 
//获取总行数:
dataGridView1.Rows.Count; 
获取当前选中行索引:
int i = this.dataGridView1.CurrentRow.Index; 获取当前选中列索引:
int j = this.dataGridView1.CurrentCell.ColumnIndex;
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