将数据从文件导入DataGridView

Question

I made a Windows Forms application in Visual Studio, and into initial form put one DataGridView (from toolbox). Then I made dataset and extract data from file into dataset. I tried to put data from dataset into GridView but when I started the form nothing happened. Grid was empty. What did I do wrong? Here is what I tried:

dataGridView1.Dock = DockStyle.Fill;
dataGridView1.DataSource = MakeDataTable(); 

MakeDataTable() is method that returns DataSet (it's valid). dataGridView1 is object of class DataGridView that I got from toolbox. The grid just remained empty, nothing happened even though there was no error in compiling. Then I tried to just make DataGridView on Form1 (default form), in similar way. I erased DataGrid View from form Design and added line:

DataGridView dataGridView1 = new DataGridView();

It didn't work either, I didn't know how to put that to be visible on form.

This worked but it opened another form so I had two forms, one empty and second one with gridView properly populated with data:

Form form1 = new Form();
DataGridView dataGridView1 = new DataGridView();
dataGridView1.Dock = DockStyle.Fill;
dataGridView1.DataSource = MakeDataTable();
form1.Controls.Add(dataGridView1);
form1.ShowDialog(); 

What did I do wrong?

Answer 1

If MakeDataTable returns a DataSet :

**// Add these lines of code to your source**
DataSet ds = MakeDataTable();
dataGridView1.DataSource = ds;
dataGridView1.DataMember = ds.Tables[0].TableName;
dataGridView1.AutoGenerateColumns = true; 

form1.Controls.Add(dataGridView1);
form1.ShowDialog();