Windows窗体：如何使窗体和网格更改大小一起？

Question

In C#, I have a table displayed using a DataGridView . The table is significantly smaller than the form in which it appears, and so the table fills only a small portion of the upper-left-hand corner of the form.

My question: how can I (programmatically) make either: (1) the table automatically enlarge so that it fills the form, or (2) make the form automatically shrink to the size of the table? (And, are both possible?)

using System ;
using System.Windows.Forms ;
using System.Data ;

public class NiftyForm : System.Windows.Forms.Form
    {
    private     DataGridView        myDataGridView ;
    private     System.Data.DataTable   myDataTable ;

    public NiftyForm ( )
        {
        this.Load  +=  new EventHandler ( NiftyFormLoadEventHandler ) ;
        }

    private void NiftyFormLoadEventHandler ( System.Object sender,
                                             System.EventArgs ea )
        {
        this.Location  =  new System.Drawing.Point ( 40, 30 ) ;
        this.Size      =  new System.Drawing.Size ( 800, 600 ) ;

        myDataTable  =  new DataTable ( ) ;
        DataColumn  myDataColumn  =  new DataColumn ( ) ;
        myDataColumn.DataType           =   typeof(string) ;
        myDataColumn.ColumnName         =   "Name";
        myDataColumn.ReadOnly           =   true;
        myDataTable.Columns.Add ( myDataColumn ) ;

        myDataColumn    =  new DataColumn ( ) ;
        myDataColumn.DataType   =   typeof(int) ;
        myDataColumn.ColumnName =   "Age";
        myDataColumn.ReadOnly   =   true;
        myDataTable.Columns.Add ( myDataColumn ) ;

        string [ ]  Name  =  new string [ 5 ]
                             { "Dwight", "Abe", "Cal", "Bill", "Eisenhower" } ;
        int    [ ]  Age   =  new int    [ 5 ] { 123, 45, 6, 78, 9 } ;
        for ( int i = 0 ; i < 5 ; i ++ )
            {
            DataRow     myDataRow  =  myDataTable.NewRow ( ) ;
            myDataRow [ "Name" ]    =   Name [ i ] ;
            myDataRow [ "Age" ] =   Age  [ i ] ;
            myDataTable.Rows.Add ( myDataRow ) ;
            }

        this.myDataGridView             =   new DataGridView ( ) ;
        this.myDataGridView.DataSource      =   myDataTable ;
        this.myDataGridView.Dock        =   DockStyle.Fill ;
        this.Controls.Add ( this.myDataGridView ) ;
        }

    [ STAThreadAttribute ( ) ]

    static void Main ( )
        {
        Application.Run ( new NiftyForm ( ) ) ;
        }

    }

Answer 1

this.myDataGridView.Dock = DockStyle.Fill;

This will make the DataGrid fill the entire Form

You can also use an Anchor like so.

this.myDataGridView.Anchor = AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right;

This means that the DataGrid will resize when the Form resizes.

Answer 2

使用Grid的Dock和Anchor属性播放:)此外，您可能希望尝试使用表单的AutoSize属性来查看它是否按照您的意愿运行。

Answer 3

设置表单AutoSize = True和AutoSizeMode = GrowAndShrink，您的表单将调整为网格大小。

Answer 4

I have yet to meet a problem like this that I couldn't solve with the Anchor property. For me, Dock seems much harder to use. I guess if there are no other controls on the form, DockStyle.Fill is OK. Most forms tend to have other controls on them so, anchoring to all four sides is much easier.