How to bind dataGridView predefined columns with columns from sql statement (without adding new columns)?

问题

Is there a elegant way, to bind predefined dataGridView columns with results from a SQL statement?

Example:

dataGridView1.Columns.Add("EID", "ID");
dataGridView1.Columns.Add("FName", "FirstName");

Some SQL like

SELECT t.FirstName AS FName, t.EmpID AS EID 
FROM table t ...

and then I call

 dataGridView1.DataSource = someDataSet.Tables[0].DefaultView;

The last call add columns to my datagrid but I just want to bind it by column name not to add new columns.

The example will give a result like this:

Table columns: ID, FirstName, FName, EID (ID and FirstName holds empty cells)

How to get this:

Table columns: ID, FirstName or FirstName, ID

Best regards!

回答1:

Aside from setting AutoGenerateColumns to false, you also need to set DataPropertyName for each column in the DataGridView to the corresponding field in the data source. You can set this in the designer or in code before setting the DataSource property.

回答2:

Use dataGridView1.Columns["FName"].DataPropertyName = "FName" where FName is column in your data table.

回答3:

I think the DataGridView has an AutoGenerateColumns property, doesn't it?

dataGridView1.AutoGenerateColumns = True;

From the MSDN docs:

public bool AutoGenerateColumns { set; get; } Member of System.Windows.Forms.DataGridView

Summary: Gets or sets a value indicating whether columns are created automatically when the System.Windows.Forms.DataGridView.DataSource or System.Windows.Forms.DataGridView.DataMember properties are set.

Returns: true if the columns should be created automatically; otherwise, false. The default is true.

The property isn't on the Properties window though, you have to set it via code as in my example.

回答4:

If you are doing WinForm, the important part is setting the DataPropertyName property to match the DataTable Column name. You can do it in the designer or code as follows:

Me.AccountDataGridView.Columns("Account").DataPropertyName = "Account"

Of course, having set this:

Me.AccountDataGridView.AutoGenerateColumns = False

回答5:

How about adding columns to the Columns tag of your gridview like so?

<Columns>
<asp:BoundField DataField="EID" HeaderText="ID" />
<asp:BoundField DataField="FName" HeaderText="First name" />
...

来源：https://stackoverflow.com/questions/1741299/how-to-bind-datagridview-predefined-columns-with-columns-from-sql-statement-wit