today study_2005.2.25

王朝other·作者佚名  2006-01-09
窄屏简体版  字體: |||超大  

English study

navigate:

v. 1.航行 2.驾驶

A single dimension array

dimension:

n. 1.尺寸,尺度 2.维(数) 3.容积,面积

DataTable , DataRow, DataColumn ---------How to use.

Dim table_user As DataTable

Dim col_Id As DataColumn

Dim col_UserName As DataColumn

Dim row1 As DataRow

Try

table_user = New DataTable("userTable")

col_Id = New DataColumn("id", Type.GetType("System.Int32"))

col_UserName = New DataColumn("userName", Type.GetType("System.String"))

table_user.Columns.Add(col_Id)

table_user.Columns.Add(col_UserName)

row1 = table_user.NewRow

row1("id") = 123

row1("username") = "zhuxinbin"

table_user.Rows.Add(row1)

DataGrid1.DataSource = table_user

Catch ex As Exception

MessageBox.Show(ex.Message)

End Try

从流读取图片到picturebox.txt

Dim bin As Stream

Try

bin = New FileStream("C:\Documents and Settings\All Users\Documents\My Pictures\Sample Pictures\Sunset.jpg", FileMode.Open)

'PictureBox1.Image = PictureBox1.Image.FromStream(bin)'?里容易出?

PictureBox1.Image = Image.FromStream(bin)'??方式比?好

PictureBox1.Refresh()'don't need

Catch ex As Exception

MessageBox.Show(ex.Message)

Finally

bin.Close()

End Try

 
 
 
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