DataGridView根据条件

Question

我一直在研究一个项目，我将DataTable绑定到DataGridView（2列，双类型）。我想要做的是我想在用户添加新行时以编程方式排序。但问题是，只有当用户填写所有列而不仅仅是一列时，才需要对其进行排序。

即使DataGridViewSortMode设置为NotSortable，当用户添加新行并只填充一列时，它会自动对数据进行排序。

更新1：

// This is the Form1_Load event. 
// Basically populates X, Y, then adds them into DataTable, finally binds it to DataGridView.

private void Form1_Load(object sender, EventArgs e)
    {
        // Generate X-Y Data
        double[] X = new double[]
        { 50, 200, 400, 1000 };

        double[] Y = new double[]
        { 150, 300, 50, 250};


        // Create DataTable
        DataTable dTable = new DataTable();

        // Define Column Headers
        dTable.Columns.Add("X", typeof(double));
        dTable.Columns.Add("Y", typeof(double));

        // Add Rows to DataTable
        for (int i = 0; i < X.Length; i++)
        {
            dTable.Rows.Add(X[i], Y[i]);

        }

        // Bind DataTable to DataGridView
        dataGridView1.DataSource = dTable;

    }

dataGridView1_CellEndEdit事件

// This is called when user finishes typing. 
// Objective is to determine if all rows are filled. 
// IF: all rows have some value --> Sort; IF not --> Do NOT sort data.

 private void dataGridView1_CellEndEdit(object sender, DataGridViewCellEventArgs e)
    {

        if (isNullorEmpty()) // Call a method to see if any row is empty
        {
            dataGridView1.Columns.Cast<DataGridViewColumn>().ToList().
                ForEach(f => f.SortMode = DataGridViewColumnSortMode.NotSortable); // Do not sort because some columns are empty
        }
        else
        {
            dataGridView1.Sort(dataGridView1.Columns[0], ListSortDirection.Ascending); // Sort data since all columns and rows have value
        }
    }

解决！

当任何行被确定为空时，我刚刚添加了“return”命令，瞧！

这是编辑过的dataGridView1_CellEndEdit事件

private void dataGridView1_CellEndEdit(object sender, DataGridViewCellEventArgs e)
{

    if (isNullorEmpty()) // Call a method to see if any row is empty
    {
        return;
    }
    else
    {
        dataGridView1.Sort(dataGridView1.Columns[0], ListSortDirection.Ascending); // Sort data since all columns and rows have value
    }
}