能否通过datagrid显示的列数来决定显示数据?(这想法是不是太难了?)

[lcge]

Private Sub DataGrid1ClickChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles DataGrid1.Click
datagirdsub()
End Sub

Private Sub datagirdsub()
If DataGrid1.CurrentRowIndex <= xx - 1 And DataGrid1.CurrentRowIndex >= 0 Then
Me.Label12.Text = Me.DataGrid1.Item(DataGrid1.CurrentCell.RowNumber, 1)
Me.TextBox4.Text = Me.DataGrid1.Item(DataGrid1.CurrentCell.RowNumber, 3)
Me.ComboBox3.Text = Me.DataGrid1.Item(DataGrid1.CurrentCell.RowNumber, 0)
Me.ComboBox4.Text = Me.DataGrid1.Item(DataGrid1.CurrentCell.RowNumber, 2)
Me.Label34.Text = Me.DataGrid1.Item(DataGrid1.CurrentCell.RowNumber, 4)
end if

以上会出现这种情况:
datagrid1显示的列数不管是不是4列,只要你点击datagrid1,它们都显示出来.能否使datagrid1只显示4列时,点击datagrid1才显示!

[木头呆但不傻]

用DataGridTableStyle试试

[thinkingforever]

在代码中给DataGrid添加DataGridTableStyle,在DataGridTableStyle添加datacloumn,
在给每一列帮定数据.

[lcge]

能否给个代码,本人刚学的.

[KahnWinsock]

致作者：
首先，你为什么不使用datagrid的click事件？
其次，你为什么不在DataGrid1ClickChanged事件里调用函数的时候加上判断条件？datagirdsub（）只是负责显示，而用不用显示应该 你来控件，所以，在DataGrid1ClickChanged里面加一个if语句，先判断一下datagrid的列数，然后再决定是否显示。

[lcge]

怎样判断一下datagrid的列数?(正是我要解决的.)

[thinkingforever]

//
// dataGrid1
//
this.dataGrid1.DataMember = "表名";
this.dataGrid1.DataSource = this.dataset11;
this.dataGrid1.Dock = System.Windows.Forms.DockStyle.Bottom;
this.dataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText;
this.dataGrid1.Location = new System.Drawing.Point(0, 210);
this.dataGrid1.Name = "dataGrid1";
this.dataGrid1.Size = new System.Drawing.Size(720, 296);
this.dataGrid1.TabIndex = 0;
this.dataGrid1.TableStyles.AddRange(new System.Windows.Forms.DataGridTableStyle[] { this.dataGridTableStyle1});
//
// dataGridTableStyle1
//
this.dataGridTableStyle1.DataGrid = this.dataGrid1;
this.dataGridTableStyle1.GridColumnStyles.AddRange(new System.Windows.Forms.DataGridColumnStyle[] { this.dataGridTextBoxColumn1,
});
this.dataGridTableStyle1.HeaderForeColor = System.Drawing.SystemColors.ControlText;
this.dataGridTableStyle1.MappingName = "表名";

//
// dataGridTextBoxColumn1
//
this.dataGridTextBoxColumn1.Format = "";
this.dataGridTextBoxColumn1.FormatInfo = null;
this.dataGridTextBoxColumn1.HeaderText = "ID";
this.dataGridTextBoxColumn1.MappingName = "列名";
this.dataGridTextBoxColumn1.Width = 75;

[thinkingforever]

还有首先实例化他们
this.dataGrid1 = new System.Windows.Forms.DataGrid();
this.dataGridTableStyle1 = new System.Windows.Forms.DataGridTableStyle();
this.dataGridTextBoxColumn1 = new System.Windows.Forms.DataGridTextBoxColumn();