Question

我希望我的表格大小适合数据网格视图。数据网格视图大小始终相同，但表可以更改行数和列数。

以下是我填充表格的方法：

public DataTable createGridForForm(int rows, int columns)
{              
    // Create the output table.
    DataTable table = new DataTable();

    for (int i = 1; i <= columns; i++)
    {
        table.Columns.Add("column " + i.ToString());
    }

    for (int i = 1; i < rows; i++)
    {
        DataRow dr = table.NewRow();
        // populate data row with values here
        ListBox test = new ListBox();
        myTabPage.Controls.Add(test);
        table.Rows.Add(dr);
    }
    return table;
}

以下是我创建datagridview的方法：

private void createGridInForm(int rows, int columns)
{
    DataGridView RunTimeCreatedDataGridView = new DataGridView();
    RunTimeCreatedDataGridView.DataSource = createGridForForm(rows, columns);

    //DataGridViewColumn ID_Column = RunTimeCreatedDataGridView.Columns[0];
    //ID_Column.Width = 200;

    int positionForTable = getLocationForTable();
    RunTimeCreatedDataGridView.BackgroundColor = Color.WhiteSmoke;

    RunTimeCreatedDataGridView.Size = new Size(995, 200);
    RunTimeCreatedDataGridView.Location = new Point(5, positionForTable);
    myTabPage.Controls.Add(RunTimeCreatedDataGridView);                   
}

尝试此代码时出错：

//DataGridViewColumn ID_Column = RunTimeCreatedDataGridView.Columns[0];
//ID_Column.Width = 200;

错误说：

指数超出范围。它可能不是负数，必须小于

Answer 1

如果在获取Columns[0]之前将数据网格添加到选项卡控件，则不会出现该错误。你的代码应该是这样的：

DataGridView RunTimeCreatedDataGridView = new DataGridView();
myTabPage.Controls.Add(RunTimeCreatedDataGridView);
RunTimeCreatedDataGridView.DataSource = createGridForForm(rows, columns);
DataGridViewColumn ID_Column = RunTimeCreatedDataGridView.Columns[0];
ID_Column.Width = 200;

修改

我添加了详细的行，以便将DataGridView填充到它的容器中。

private void createGridInForm(int rows, int columns) { DataGridView RunTimeCreatedDataGridView = new DataGridView(); RunTimeCreatedDataGridView.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Left | System.Windows.Forms.AnchorStyles.Right))); myTabPage.Controls.Add(RunTimeCreatedDataGridView); RunTimeCreatedDataGridView.DataSource = createGridForForm(rows, columns); // fill the gridview to its container DataGridViewColumn ID_Column = RunTimeCreatedDataGridView.Columns[0]; ID_Column.AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill; RunTimeCreatedDataGridView.Dock = DockStyle.Fill; }

Answer 2

以下行可用于使用数据网格视图中的特定列填充额外空间

RunTimeCreatedDataGridView .Columns["column_name"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;

如果将所有列的此属性设置为 DataGridViewAutoSizeColumnMode.Fill ，则所有列都采用相同的宽度

Answer 3

这就是它

表示宽度 -

RunTimeCreatedDataGridView.AutoSizeColumnsMode=System.Windows.Forms.DataGridViewAutoSizeColumnsMode.Fill;

和高度 -

totalRowHeight = RunTimeCreatedDataGridView.ColumnHeadersHeight;
            foreach (DataGridViewRow row in RunTimeCreatedDataGridView.Rows)
                totalRowHeight += row.Height;

调整表的大小以适应数据网格视图C＃

3 个答案: