189 8069 5689
将二位数组转成DataTable，网上找的不知道成不成
东方网站建设公司创新互联,东方网站设计制作，有大型网站制作公司丰富经验。已为东方上1000家提供企业网站建设服务。企业网站搭建\外贸网站建设要多少钱，请找那个售后服务好的东方做网站的公司定做！
public static DataTable ConvertToDataTable(string[,] arr)
{
DataTable dataSouce = new DataTable();
for (int i = 0; i arr.GetLength(1); i++)
{
DataColumn newColumn = new DataColumn(i.ToString(), arr[0, 0].GetType());
dataSouce.Columns.Add(newColumn);
}
for (int i = 0; i arr.GetLength(0); i++)
{
DataRow newRow = dataSouce.NewRow();
for (int j = 0; j arr.GetLength(1); j++)
{
newRow[j.ToString()] = arr[i, j];
}
dataSouce.Rows.Add(newRow);
}
return dataSouce;
}
这个比较简单
假如二维数组是str(row,col)
假设Workbook是Excel的工作簿对象
Workbook.worksheets(1).range("A2").Resize(row+1, col+1).Value = str
其中关键的是Excel的Resize方法能快速的插入二维数组
格式就错了，你这city()程序会把它当成字SQL语句里的函数的，一般sql里面带括号都是sql里自带的函数，这个sql里当然是没有的了
应该是这样写的：
Dim cmd2 As New OleDbCommand("insert into 20072786 values(" city(i,0) "," city(i,1） "," city(i,2) "," city(i,3) ")" , db1)
下面这段代码完成，在窗体上用语句添加2个 GroupBox控件，且在每个GroupBox控件中添加4个 RadioButton 控件。
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim i As Integer
'添加2个GroupBox
Dim MyGroupBox(2) As GroupBox
For i = 1 To 2
'将一个GroupBox控件加入到Form上
MyGroupBox(i) = New GroupBox
Me.Controls.Add(MyGroupBox(i))
'设置该GroupBox控件的属性
MyGroupBox(i).Height = 240
MyGroupBox(i).Width = 600
MyGroupBox(i).Top = (i - 1) * (240 + 20) + 20
MyGroupBox(i).Left = 20
'修改新加入控件的Text值
MyGroupBox(i).Text = "GroupBox" CStr(i)
Next
'每个GroupBox中添加4个单选按钮
Dim MyRadioButton1(4) As RadioButton
Dim MyRadioButton2(4) As RadioButton
For i = 1 To 4
MyRadioButton1(i) = New RadioButton
Me.Controls.Add(MyRadioButton1(i))
MyRadioButton1(i).Parent = MyGroupBox(1)
'设置该GroupBox控件的属性
MyRadioButton1(i).Height = 20
MyRadioButton1(i).Width = 120
MyRadioButton1(i).Top = (i - 1) * (20 + 20) + 40
MyRadioButton1(i).Left = 20
'修改新加入控件的Text值
MyRadioButton1(i).Text = "RadioButton1_" CStr(i)
Next
For i = 1 To 4
MyRadioButton2(i) = New RadioButton
Me.Controls.Add(MyRadioButton2(i))
MyRadioButton2(i).Parent = MyGroupBox(2)
'设置该GroupBox控件的属性
MyRadioButton2(i).Height = 20
MyRadioButton2(i).Width = 120
MyRadioButton2(i).Top = (i - 1) * (20 + 20) + 40
MyRadioButton2(i).Left = 20
'修改新加入控件的Text值
MyRadioButton2(i).Text = "RadioButton2_" CStr(i)
Next
End Sub