麻烦使用绑定源 [英] Trouble using binding source

问题描述

我只是开始学习C＃以及如何将它与SQL配对，所以这些更复杂的内置函数中的一些对我来说仍然是新的。 

I am only starting to learn C# and how to pair it with SQL, so some of these more complicated built in functions are still new to me. 

My数据表显示一行和四列，这是正确的，但是当我将它绑定到数据视图时，我得到0行和列。为什么我的数据视图网格没有填充数据表中的信息？如何让它顺利进行？

My data table shows one row and 4 columns, which is correct, but when I bind it to a data view, I get 0 rows and columns. Why is my dataview grid not populating with the information from the datatable and how can I get it to go smoothly?

推荐答案

你确定没有将您的datagridview设置为false？ 

Are you sure you have not set something of your datagridview to false? 

{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        DataTable dtW = new DataTable();
        private void Form1_Load(object sender, EventArgs e)
        {
            dtW.Columns.Add("1");
            dtW.Columns.Add("2");
            dtW.Columns.Add("3");
            dtW.Columns.Add("4");
            dtW.Rows.Add(new object[] { "A", "B", "C", "D" });
            BindingSource bsW = new BindingSource();
            bsW.DataSource = dtW;
            dgvWells.DataSource = bsW;

            try
            {

                MessageBox.Show(dtW.Rows.Count.ToString()); //Shows 1 Row
                MessageBox.Show(dtW.Columns.Count.ToString()); //Shows 4 columns
                MessageBox.Show(dgvWells.Rows.Count.ToString()); //Shows 2 rows
                MessageBox.Show(dgvWells.Columns.Count.ToString()); //Shows 4 Columns
            }
            catch (Exception x)
            {
                MessageBox.Show("Exception: " + x.Message + "\r\n" + x.StackTrace);
            }
        }
    }
}

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