vb.net参数保存 vbnet instr

VB.NET 本地保存数据VB可以用任何格式保存文件数据不仅仅是注册表\XML\INI
甚至于未知的格式 。我教你命令:
open "C:\setup.safe" for output as #1
print #1,"object"
close #1
其中setup.safe就是一个文件,后缀为.safe,当然可以改成.dat包括其他任何后缀.
object就是你要写入setup.safe的内容.
VB.NET中怎样把控件的所有属性保存到文件VB.NET窗体上的所有控件的属性都保存在 窗体名.designer.vb 中 , 但是是在编译前 , 编译以后就直接在exe文件里面了 。
VB.NET 将参数传入 存储过程 的 问题?//存储过程代码
CREATE PROCEDURE [AddNewInvoiceInfo] (@sUserID int,@sClaimMethod varchar(50),@sInvoiceNumvarchar(50),@sInvoiceDate datetime,@sBuyCity varchar(50))AS
Insert Into SMB_InvoiceInfo (MemberID,ClaimMethod,InvoiceNum,InvoiceDate,InvoiceCity) Values(@sUserID,@sClaimMethod,@sInvoiceNum,@sInvoiceDate,@sBuyCity)
return@@IDENTITY
GO
//调用存储过程代码
Dim CN As New SqlConnection()
Dim InvoiceID As String
Try
CN.ConnectionString = DBConStr
CN.Open()
Dim CMD As SqlCommand
CMD = New SqlCommand(AddNewInvoiceInfo, CN)
CMD.CommandType = CommandType.StoredProcedure
CMD.Parameters.Add(New SqlParameter(@sUserID, SqlDbType.Int))
CMD.Parameters(@sUserID).Value = https://www.04ip.com/post/CInt(UserID.Text)
CMD.Parameters.Add(New SqlParameter(@sClaimMethod, SqlDbType.VarChar, 50))
CMD.Parameters(@sClaimMethod).Value = https://www.04ip.com/post/TransName.Text
CMD.Parameters.Add(New SqlParameter(@sInvoiceNum, SqlDbType.VarChar, 50))
CMD.Parameters(@sInvoiceNum).Value = https://www.04ip.com/post/InvoiceNum.Text
CMD.Parameters.Add(New SqlParameter(@sInvoiceDate, SqlDbType.DateTime))
CMD.Parameters(@sInvoiceDate).Value = https://www.04ip.com/post/InvoiceDate.SelectedDate.Date
CMD.Parameters.Add(New SqlParameter(@sBuyCity, SqlDbType.VarChar, 50))
CMD.Parameters(@sBuyCity).Value = https://www.04ip.com/post/BuyCity.Text
【vb.net参数保存 vbnet instr】CMD.Parameters.Add(New SqlParameter(@sInvoiceID, SqlDbType.Int))
CMD.Parameters(@sInvoiceID).Direction = ParameterDirection.ReturnValue
CMD.ExecuteNonQuery()
InvoiceID = CMD.Parameters(@sInvoiceID).Value.ToString()
CMD.Dispose()
Catch ex As Exception
Response.Write(ex.ToString())
Finally
CN.Close()
End Try
vb.net编写程序时如何存储设置参数?比较专业的做法是在项目中添加微软的Application Settings类 , 详细帮助文档:
使用极其简单,假设在settings1.settings设置一个项目,名称:IP , 类型:String,范围:用户,值:192.168.1.1
调用:Dim sIP As String = setting.IP
获取缺省值:Dim sIP As String = Settings1.Default.IP
保存: setting.IP = "192.168.1.30" : setting.Save()
vb.net保存数据都是用SQL语句完成vb.net参数保存的
写入数据库
strSQL="INTO TABLENAME (OPTION1,OPTIN2)VALUES(VALUE1,VALUE2)";
cmd.Connection = conn;
cmd.CommandText = strSQL;
cmd.Parameters.Add(paramrs[i]);
try
{
conn.Open();
}
catch(Exception ex)
{
throw ex;
}
finally
{
cmd.Parameters.Clear();
cmd.CommandText = null;
cmd.Dispose();
conn.Close();
}
读取值
strSQL ="SELECT OPTION1vb.net参数保存,OPTION2 FROM TABLENAME";
cmd.CommandText = strSQL;
cmd.Connection = conn;
DataSet ds = new DataSet();
try
{
conn.Open();
SqlDataAdapter da = new SqlDataAdapter(cmd);
da.Fill(ds);
}
catch (Exception ex)
{
throw ex;
}
finally
{
cmd.Dispose();
conn.Close();
}
TextBox2.text = ds.Tables[0].rows[0][0].value.tostring();
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