net2005中在添加数据源时,提示"该项不适于在指定状态下使用"错误(在线等,急)

2007-03-18 09:44:04 529 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

LVI-SAM实战：如何在Ubuntu20.04上快速复现激光-视觉-惯性里程计系统本文详细解析了在Ubuntu 20.04环境下部署和优化LVI-SAM激光-视觉-惯性里程计系统的全流程。从环境配置、依赖安装到源码编译和实战调参，提供了完整的解决方案和性能优化策略，帮助开发者快速实现厘米级精度的实时位姿估计。阅读详情

net2005中在使用数据源配制向导中,在选择从那里获取数据源中,只要选择"数据库"就会提示"该项不适于在指定状态下使用"的错误... 不知道该怎么解决.

...全文

将3DMax编辑的动画，导入给已经绑定蒙皮好的模型给Unity使用现在程序猿想做独立游戏，即容易，也难。说容易，引擎越来越傻瓜化。说难，到哪去找靠谱的美术？好在伟大的AssetStore（还有淘宝上）有大批不赖的资源可以用。现成的模型，是好，但是，没有配套的动作，却是一件让人头疼的事情，即使用IK动画，也不能完美的弥补这一缺陷。虽然Unity具备 retargeting 功能，但是，也不是万能的，很多情况下，非标准的骨骼会导致阅读详情

dk9761

C# 111,129 成员 642,539 内容

+ 关注 + 加入社区

切换为时间正序

Roland2Dragon 2011-09-26

打赏
举报

[Quote=引用 6 楼 ajq1989 的回复:]

删除Server Explorer中的数据库连接..
[/Quote]

多谢！！！！

ajq1989 2010-06-07

打赏
举报

删除Server Explorer中的数据库连接..

大光呢 2010-06-07

打赏
举报

臭啊。别人问你怎么解决那个问题，你回答的可好。

pfworld 2007-03-22

打赏
举报

/// <summary>
/// 向数据库里插入图像格式的字段
/// </summary>
/// <param name="strSQL"></param>
/// <param name="fs"></param>
/// <returns></returns>
public static int ExecuteSqlInsertImg(string strSQL,byte[] fs)
{
using (SqlConnection connection = new SqlConnection(connectionString))
{
SqlCommand cmd = new SqlCommand(strSQL,connection);
System.Data.SqlClient.SqlParameter myParameter = new System.Data.SqlClient.SqlParameter ( "@fs", SqlDbType.Image);
myParameter.Value = fs ;
cmd.Parameters.Add(myParameter);
try
{
connection.Open();
int rows=cmd.ExecuteNonQuery();
return rows;
}
catch(System.Data.SqlClient.SqlException E)
{
throw new Exception(E.Message);
}
finally
{
cmd.Dispose();
connection.Close();
}

}
}
/// <summary>
/// 执行一条计算查询结果语句，返回查询结果（整数）。
/// </summary>
/// <param name="strSQL"></param>
/// <returns></returns>
public static int GetCount(string strSQL)
{
using (SqlConnection connection = new SqlConnection(connectionString))
{
SqlCommand cmd = new SqlCommand(strSQL,connection);
try
{
connection.Open();
SqlDataReader result = cmd.ExecuteReader();
int i=0;
while(result.Read())
{
i=result.GetInt32(0);
}
result.Close();
return i;
}
catch(System.Data.SqlClient.SqlException e)
{
throw new Exception(e.Message);
}
finally
{
cmd.Dispose();
connection.Close();
}
}
}
/// <summary>
/// 执行一条计算查询结果语句，返回查询结果（object）。
/// </summary>
/// <param name="SQLString"></param>
/// <returns></returns>
public static object GetSingle(string SQLString)
{
using (SqlConnection connection = new SqlConnection(connectionString))
{
SqlCommand cmd = new SqlCommand(SQLString,connection);
try
{
connection.Open();
object obj = cmd.ExecuteScalar();
if((Object.Equals(obj,null))||(Object.Equals(obj,System.DBNull.Value)))
{
return null;
}
else
{
return obj;
}
}
catch(System.Data.SqlClient.SqlException e)
{
throw new Exception(e.Message);
}
finally
{
cmd.Dispose();
connection.Close();
}
}
}
/// <summary>
/// 执行查询语句，返回SqlDataReader
/// </summary>
/// <param name="strSQL"></param>
/// <returns></returns>
public static SqlDataReader ExecuteReader(string strSQL)
{
using (SqlConnection connection = new SqlConnection(connectionString))
{
SqlCommand cmd = new SqlCommand(strSQL,connection);
SqlDataReader myReader;
try
{
connection.Open();
myReader = cmd.ExecuteReader();
return myReader;
}
catch(System.Data.SqlClient.SqlException e)
{
throw new Exception(e.Message);
}
finally
{
cmd.Dispose();
connection.Close();
}
}
}
/// <summary>
/// 执行查询语句，返回DataSet
/// </summary>
/// <param name="SQLString"></param>
/// <returns></returns>
public static DataSet Query(string SQLString)
{
using (SqlConnection connection = new SqlConnection(connectionString))
{
DataSet ds = new DataSet();
try
{
connection.Open();
SqlDataAdapter command = new SqlDataAdapter(SQLString,connection);
command.Fill(ds,"ds");
}
catch(System.Data.SqlClient.SqlException ex)
{
throw new Exception(ex.Message);
}
return ds;
}

}

#region 存储过程操作

/// <summary>
/// 运行存储过程
/// </summary>
/// <param name="storedProcName"></param>
/// <param name="parameters"></param>
/// <returns></returns>
public static DataSet RunProcedure(string storedProcName)
{
using (SqlConnection connection = new SqlConnection(connectionString))
{
DataSet dataSet = new DataSet();
connection.Open();
SqlDataAdapter sqlDA = new SqlDataAdapter(storedProcName,connection);
sqlDA.SelectCommand.CommandType = CommandType.StoredProcedure;
sqlDA.Fill( dataSet);
connection.Close();

return dataSet;
}
}
public static SqlDataAdapter RunProcedure(string storedProcName, SqlParameter[] parameters )
{
using (SqlConnection connection = new SqlConnection(connectionString))
{
SqlDataAdapter sqlDA = new SqlDataAdapter();

connection.Open();

SqlCommand command = BuildQueryCommand( connection,storedProcName, parameters );

sqlDA.SelectCommand = command;
//Connection.Close();
return sqlDA;
}
}
/*
private static SqlCommand BuildQueryCommand(SqlConnection connection,string storedProcName, IDataParameter[] parameters)
{

SqlCommand command = new SqlCommand( storedProcName, connection );
command.CommandType = CommandType.StoredProcedure;
foreach (SqlParameter parameter in parameters)
{
command.Parameters.Add( parameter );
}
return command;

}*/
private static SqlCommand BuildQueryCommand(SqlConnection connection,string storedProcName, SqlParameter[] parameters)
{

SqlCommand command = new SqlCommand( storedProcName,connection );
command.CommandType = CommandType.StoredProcedure;
foreach (SqlParameter parameter in parameters)
{
command.Parameters.Add( parameter );
}
return command;

}

public static System.Data.SqlClient.SqlDataAdapter RunProcedure(string storedProcName, SqlParameter[] parameters, string

tableName )
{
using (SqlConnection connection = new SqlConnection(connectionString))
{
//DataSet dataSet = new DataSet();
connection.Open();
SqlDataAdapter sqlDA = new SqlDataAdapter();
sqlDA.SelectCommand = BuildQueryCommand(connection, storedProcName, parameters );
//sqlDA.Fill( dataSet, tableName );
connection.Close();

return sqlDA;
}
}

#endregion
}

public class DDN_UseSQL : DDN.SQLServerOperater.SQLServerOperate
{
public string scriptHead="<script lanuage=javascript>";

public string scriptEnd="</script>";

public DDN_UseSQL()
{
//
// TODO: 在此处添加构造函数逻辑
//
}
}
}

pfworld 2007-03-22

打赏
举报

最好不要用那个!!使用这个好点!!

C#通用数据操作类
关键词： C#　类

using System;
using System.Collections;
using System.Collections.Specialized;
using System.Runtime.Remoting.Messaging;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
namespace DDN.SQLServerOperater
{
/// <summary>
/// ADO.NET数据库操作基础类。
/// </summary>
public abstract class SQLServerOperate
{
//数据库连接字符串
protected static string connectionString = ConfigurationSettings.AppSettings["SQLConnStr"];

//构造函数
public SQLServerOperate()
{
//
// TODO: 在此处添加构造函数逻辑
//
}
/// <summary>
/// 执行SQL语句，返回影响的记录数
/// </summary>
/// <param name="SQLString"></param>
/// <returns></returns>
public static int ExecuteSql(string SQLString)
{
using (SqlConnection connection = new SqlConnection(connectionString))
{
using (SqlCommand cmd = new SqlCommand(SQLString,connection))
{
try
{
connection.Open();
int rows=cmd.ExecuteNonQuery();
return rows;
}
catch(System.Data.SqlClient.SqlException E)
{
throw new Exception(E.Message);
}
}
}
}
/// <summary>
/// 执行两条SQL语句，实现数据库事务。
/// </summary>
/// <param name="SQLString1"></param>
/// <param name="SQLString2"></param>
public static void ExecuteSqlTran(string SQLString1,string SQLString2)
{
using (SqlConnection connection = new SqlConnection(connectionString))
{
connection.Open();
SqlCommand cmd = new SqlCommand();
cmd.Connection=connection;
SqlTransaction tx=connection.BeginTransaction();
cmd.Transaction=tx;
try
{
cmd.CommandText=SQLString1;
cmd.ExecuteNonQuery();
cmd.CommandText=SQLString2;
cmd.ExecuteNonQuery();
tx.Commit();
}
catch(System.Data.SqlClient.SqlException E)
{
tx.Rollback();
throw new Exception(E.Message);
}
finally
{
cmd.Dispose();
connection.Close();
}
}
}
/// <summary>
/// 执行多条SQL语句，实现数据库事务，每条语句以“;”分割。
/// </summary>
/// <param name="SQLStringList"></param>
public static void ExecuteSqlTran(string SQLStringList)
{
using (SqlConnection conn = new SqlConnection(connectionString))
{
conn.Open();
SqlCommand cmd = new SqlCommand();
cmd.Connection=conn;
SqlTransaction tx=conn.BeginTransaction();
cmd.Transaction=tx;
try
{
string [] split= SQLStringList.Split(new Char [] { ';'});
foreach (string strsql in split)
{
if (strsql.Trim()!="")
{
cmd.CommandText=strsql;
cmd.ExecuteNonQuery();
}
}
tx.Commit();
}
catch(System.Data.Odbc.OdbcException E)
{
tx.Rollback();
throw new Exception(E.Message);
}
}
}
/// <summary>
/// 执行带一个存储过程参数的的SQL语句。
/// </summary>
/// <param name="SQLString"></param>
/// <param name="content"></param>
/// <returns></returns>
public static int ExecuteSql(string SQLString,string content)
{
using (SqlConnection connection = new SqlConnection(connectionString))
{
SqlCommand cmd = new SqlCommand(SQLString,connection);
System.Data.SqlClient.SqlParameter myParameter = new System.Data.SqlClient.SqlParameter ( "@content", SqlDbType.NText);
myParameter.Value = content ;
cmd.Parameters.Add(myParameter);
try
{
connection.Open();
int rows=cmd.ExecuteNonQuery();
return rows;
}
catch(System.Data.SqlClient.SqlException E)
{
throw new Exception(E.Message);
}
finally
{
cmd.Dispose();
connection.Close();
}
}
}

leixueqiyi 2007-03-22

打赏
举报

是不是你的数据源的权限问题

wshuangminlg 2007-03-22

打赏
举报

帮LZ顶

net2005中在添加数据源时,提示"该项不适于在指定状态下使用"错误(在线等,急)

相关推荐