C# 如何在C语言中保存SQL Server数据库中的复选框值#
我正在开发一个Windows窗体应用程序,我创建了一个包含房间名称、大小和实验室的房间窗体 数据库中的表包含列C# 如何在C语言中保存SQL Server数据库中的复选框值#,c#,sql-server,checkbox,C#,Sql Server,Checkbox,我正在开发一个Windows窗体应用程序,我创建了一个包含房间名称、大小和实验室的房间窗体 数据库中的表包含列RoomName(varchar)、Size(int)和LAB(bit) 这是ADD\u ROOM存储过程: CREATE PROCEDURE [dbo].[ADD_ROOM] @NAME_ROOM VARCHAR(50), @SIZE INT, @LAB BIT AS INSERT INTO [dbo].[ROOM] ([NAME_ROOM], [SIZ
RoomName
(varchar
)、Size
(int
)和LAB
(bit
)
这是ADD\u ROOM
存储过程:
CREATE PROCEDURE [dbo].[ADD_ROOM]
@NAME_ROOM VARCHAR(50),
@SIZE INT,
@LAB BIT
AS
INSERT INTO [dbo].[ROOM] ([NAME_ROOM], [SIZE], [LAB])
VALUES (@NAME_ROOM, @SIZE, @LAB)
这里是添加房间.cs:
class CLS_ADD_ROOM
{
public void ADD_ROOM(string NAME_ROOM,int SIZE,Boolean LAB)
{
DAL.DataAccessLayer DAL = new DAL.DataAccessLayer();
DAL.Open();
SqlParameter[] param = new SqlParameter[3];
param[0] = new SqlParameter("@NAME_ROOM", SqlDbType.VarChar, 50);
param[0].Value = NAME_ROOM;
param[1] = new SqlParameter("@SIZE", SqlDbType.Int);
param[1].Value = SIZE;
param[2] = new SqlParameter("@LAB", SqlDbType.Bit);
param[2].Value = LAB;
DAL.ExecuteCommand("ADD_ROOM", param);
DAL.Close();
}
public void UPDATE_ROOM(string ID_ROOM, string NAME_ROOM, int SIZE, bool LAB)
{
DAL.DataAccessLayer DAL = new DAL.DataAccessLayer();
DAL.Open();
SqlParameter[] param = new SqlParameter[4];
param[0] = new SqlParameter("@ID_ROOM", SqlDbType.Int);
param[0].Value = ID_ROOM;
param[1] = new SqlParameter("@NAME_ROOM", SqlDbType.VarChar, 50);
param[1].Value = NAME_ROOM;
param[2] = new SqlParameter("@SIZE", SqlDbType.Int);
param[2].Value = SIZE;
param[3] = new SqlParameter("@LAB", SqlDbType.Bit);
param[3].Value = LAB;
DAL.ExecuteCommand("UPDATE_ROOM", param);
DAL.Close();
}
以及“添加房间”窗体中的“代码隐藏”按钮添加房间
private void button1_Click(object sender, EventArgs e)
{
ROOM.ADD_ROOM(TXT_ROOM_NAME.Text, Convert.ToInt32(TXT_ROOM_SIZE.Text), Convert.ToBoolean(CHECK_LAB.CheckState));
MessageBox.Show(" The Room has been added successfully", "ADD PROCEDURE", MessageBoxButtons.OK, MessageBoxIcon.Information);
this.dataGridView1.DataSource = ROOM_VIEW.GET_ALL_ROOMS();
}
错误是
输入字符串的格式不正确
不确定,但这可能值得一试。在ADD_ROOM.cls中:
param[2] = new SqlParameter("@LAB", SqlDbType.Bit);
param[2].Value = LAB ? 1 : 0; // <---- CHANGE THIS LINE
param[2]=新的SqlParameter(“@LAB”,SqlDbType.Bit);
参数[2]。值=实验室?1 : 0; // 不确定,但这可能值得一试。在ADD_ROOM.cls中:
param[2] = new SqlParameter("@LAB", SqlDbType.Bit);
param[2].Value = LAB ? 1 : 0; // <---- CHANGE THIS LINE
param[2]=新的SqlParameter(“@LAB”,SqlDbType.Bit);
参数[2]。值=实验室?1 : 0; // 不确定,但这可能值得一试。在ADD_ROOM.cls中:
param[2] = new SqlParameter("@LAB", SqlDbType.Bit);
param[2].Value = LAB ? 1 : 0; // <---- CHANGE THIS LINE
param[2]=新的SqlParameter(“@LAB”,SqlDbType.Bit);
参数[2]。值=实验室?1 : 0; // 不确定,但这可能值得一试。在ADD_ROOM.cls中:
param[2] = new SqlParameter("@LAB", SqlDbType.Bit);
param[2].Value = LAB ? 1 : 0; // <---- CHANGE THIS LINE
param[2]=新的SqlParameter(“@LAB”,SqlDbType.Bit);
参数[2]。值=实验室?1 : 0; // 在C#代码中,应将Convert.ToBoolean(CHECK#LAB.CheckState)
替换为CHECK#LAB.Checked
-这是一个布尔值,用于定义是否选中复选框:
private void button1_Click(object sender, EventArgs e)
{
ROOM.ADD_ROOM(TXT_ROOM_NAME.Text,
Convert.ToInt32(TXT_ROOM_SIZE.Text),
CHECK_LAB.Checked);
MessageBox.Show(" The Room has been added successfully", "ADD PROCEDURE", MessageBoxButtons.OK, MessageBoxIcon.Information);
this.dataGridView1.DataSource = ROOM_VIEW.GET_ALL_ROOMS();
}
CheckState
属性是而不是布尔属性-它是三个可能值之一:
CheckState.Checked
CheckState.未选中
CheckState.不确定
在C#代码中,应将Convert.ToBoolean(CHECK#LAB.CheckState)
替换为CHECK#LAB.Checked
-这是布尔值,用于定义是否选中复选框:
private void button1_Click(object sender, EventArgs e)
{
ROOM.ADD_ROOM(TXT_ROOM_NAME.Text,
Convert.ToInt32(TXT_ROOM_SIZE.Text),
CHECK_LAB.Checked);
MessageBox.Show(" The Room has been added successfully", "ADD PROCEDURE", MessageBoxButtons.OK, MessageBoxIcon.Information);
this.dataGridView1.DataSource = ROOM_VIEW.GET_ALL_ROOMS();
}
CheckState
属性是而不是布尔属性-它是三个可能值之一:
CheckState.Checked
CheckState.未选中
CheckState.不确定
在C#代码中,应将Convert.ToBoolean(CHECK#LAB.CheckState)
替换为CHECK#LAB.Checked
-这是布尔值,用于定义是否选中复选框:
private void button1_Click(object sender, EventArgs e)
{
ROOM.ADD_ROOM(TXT_ROOM_NAME.Text,
Convert.ToInt32(TXT_ROOM_SIZE.Text),
CHECK_LAB.Checked);
MessageBox.Show(" The Room has been added successfully", "ADD PROCEDURE", MessageBoxButtons.OK, MessageBoxIcon.Information);
this.dataGridView1.DataSource = ROOM_VIEW.GET_ALL_ROOMS();
}
CheckState
属性是而不是布尔属性-它是三个可能值之一:
CheckState.Checked
CheckState.未选中
CheckState.不确定
在C#代码中,应将Convert.ToBoolean(CHECK#LAB.CheckState)
替换为CHECK#LAB.Checked
-这是布尔值,用于定义是否选中复选框:
private void button1_Click(object sender, EventArgs e)
{
ROOM.ADD_ROOM(TXT_ROOM_NAME.Text,
Convert.ToInt32(TXT_ROOM_SIZE.Text),
CHECK_LAB.Checked);
MessageBox.Show(" The Room has been added successfully", "ADD PROCEDURE", MessageBoxButtons.OK, MessageBoxIcon.Information);
this.dataGridView1.DataSource = ROOM_VIEW.GET_ALL_ROOMS();
}
CheckState
属性是而不是布尔属性-它是三个可能值之一:
CheckState.Checked
CheckState.未选中
CheckState.不确定
非常感谢各位。。问题已解决:)
我在ADD_ROOM.cls中更改了此说明:
class CLS_ADD_ROOM
{
public void ADD_ROOM(string NAME_ROOM,int SIZE,int LAB)// <=== Change bool to int
{
DAL.DataAccessLayer DAL = new DAL.DataAccessLayer();
DAL.Open();
SqlParameter[] param = new SqlParameter[3];
param[0] = new SqlParameter("@NAME_ROOM", SqlDbType.VarChar, 50);
param[0].Value = NAME_ROOM;
param[1] = new SqlParameter("@SIZE", SqlDbType.Int);
param[1].Value = SIZE;
param[2] = new SqlParameter("@LAB", SqlDbType.Bit); //<=== keep it .bit
param[2].Value = LAB ;
DAL.ExecuteCommand("ADD_ROOM", param);
DAL.Close();
}
private void button1_Click(object sender, EventArgs e)
{
if (CHECK_LAB.Checked)
{
ROOM.ADD_ROOM(TXT_ROOM_NAME.Text,int.Parse(TXT_ROOM_SIZE.Text),Convert.ToInt32(1));
}
else
{
ROOM.ADD_ROOM(TXT_ROOM_NAME.Text, Convert.ToInt32(TXT_ROOM_SIZE.Text), Convert.ToInt32(0)); }
非常感谢各位。。问题已解决:)
我在ADD_ROOM.cls中更改了此说明:
class CLS_ADD_ROOM
{
public void ADD_ROOM(string NAME_ROOM,int SIZE,int LAB)// <=== Change bool to int
{
DAL.DataAccessLayer DAL = new DAL.DataAccessLayer();
DAL.Open();
SqlParameter[] param = new SqlParameter[3];
param[0] = new SqlParameter("@NAME_ROOM", SqlDbType.VarChar, 50);
param[0].Value = NAME_ROOM;
param[1] = new SqlParameter("@SIZE", SqlDbType.Int);
param[1].Value = SIZE;
param[2] = new SqlParameter("@LAB", SqlDbType.Bit); //<=== keep it .bit
param[2].Value = LAB ;
DAL.ExecuteCommand("ADD_ROOM", param);
DAL.Close();
}
private void button1_Click(object sender, EventArgs e)
{
if (CHECK_LAB.Checked)
{
ROOM.ADD_ROOM(TXT_ROOM_NAME.Text,int.Parse(TXT_ROOM_SIZE.Text),Convert.ToInt32(1));
}
else
{
ROOM.ADD_ROOM(TXT_ROOM_NAME.Text, Convert.ToInt32(TXT_ROOM_SIZE.Text), Convert.ToInt32(0)); }
非常感谢各位。。问题已解决:)
我在ADD_ROOM.cls中更改了此说明:
class CLS_ADD_ROOM
{
public void ADD_ROOM(string NAME_ROOM,int SIZE,int LAB)// <=== Change bool to int
{
DAL.DataAccessLayer DAL = new DAL.DataAccessLayer();
DAL.Open();
SqlParameter[] param = new SqlParameter[3];
param[0] = new SqlParameter("@NAME_ROOM", SqlDbType.VarChar, 50);
param[0].Value = NAME_ROOM;
param[1] = new SqlParameter("@SIZE", SqlDbType.Int);
param[1].Value = SIZE;
param[2] = new SqlParameter("@LAB", SqlDbType.Bit); //<=== keep it .bit
param[2].Value = LAB ;
DAL.ExecuteCommand("ADD_ROOM", param);
DAL.Close();
}
private void button1_Click(object sender, EventArgs e)
{
if (CHECK_LAB.Checked)
{
ROOM.ADD_ROOM(TXT_ROOM_NAME.Text,int.Parse(TXT_ROOM_SIZE.Text),Convert.ToInt32(1));
}
else
{
ROOM.ADD_ROOM(TXT_ROOM_NAME.Text, Convert.ToInt32(TXT_ROOM_SIZE.Text), Convert.ToInt32(0)); }
非常感谢各位。。问题已解决:)
我在ADD_ROOM.cls中更改了此说明:
class CLS_ADD_ROOM
{
public void ADD_ROOM(string NAME_ROOM,int SIZE,int LAB)// <=== Change bool to int
{
DAL.DataAccessLayer DAL = new DAL.DataAccessLayer();
DAL.Open();
SqlParameter[] param = new SqlParameter[3];
param[0] = new SqlParameter("@NAME_ROOM", SqlDbType.VarChar, 50);
param[0].Value = NAME_ROOM;
param[1] = new SqlParameter("@SIZE", SqlDbType.Int);
param[1].Value = SIZE;
param[2] = new SqlParameter("@LAB", SqlDbType.Bit); //<=== keep it .bit
param[2].Value = LAB ;
DAL.ExecuteCommand("ADD_ROOM", param);
DAL.Close();
}
private void button1_Click(object sender, EventArgs e)
{
if (CHECK_LAB.Checked)
{
ROOM.ADD_ROOM(TXT_ROOM_NAME.Text,int.Parse(TXT_ROOM_SIZE.Text),Convert.ToInt32(1));
}
else
{
ROOM.ADD_ROOM(TXT_ROOM_NAME.Text, Convert.ToInt32(TXT_ROOM_SIZE.Text), Convert.ToInt32(0)); }
可以添加所有异常的堆栈跟踪吗@FabioIs TXT_ROOM_NAME.Text长度不超过50个符号?TXT\U ROOM\U SIZE.Text是数字吗?TXT\U ROOM\U NAME是一个文本框,从用户处接收字符串,TXT\U ROOM\U SIZE也是一个文本框,从用户处接收整数@26071986能否添加所有异常的堆栈跟踪@FabioIs TXT_ROOM_NAME.Text长度不超过50个符号?TXT\U ROOM\U SIZE.Text是数字吗?TXT\U ROOM\U NAME是一个文本框,从用户处接收字符串,TXT\U ROOM\U SIZE也是一个文本框,从用户处接收整数@26071986能否添加所有异常的堆栈跟踪@FabioIs TXT_ROOM_NAME.Text长度不超过50个符号?TXT\U ROOM\U SIZE.Text是数字吗?TXT\U ROOM\U NAME是一个文本框,从用户处接收字符串,TXT\U ROOM\U SIZE也是一个文本框,从用户处接收整数@26071986能否添加所有异常的堆栈跟踪@FabioIs TXT_ROOM_NAME.Text长度不超过50个符号?TXT\U ROOM\U SIZE.Text是数字吗?TXT\U ROOM\U NAME是一个文本框,从用户处接收字符串,TXT\U ROOM\U SIZE也是一个文本框,从用户处接收整数@26071986I使用sql管理工作室填充了“房间”表,并尝试了更新功能,结果成功了……问题是如何保存初始值。。下面是“更新按钮”私有无效按钮4_Click(对象发送者,事件参数e){ROOM.update_ROOM(TXT_ROOM_ID.Text,TXT_ROOM_NAME.Text,Convert.ToInt32(TXT_ROOM_SIZE.Text),CHECK_LAB.Checked)}@joriot在您给我们的代码中没有方法update_ROOM
@它也在ADD_ROOM.cls中:public void UPDATE_ROOM(string ID_ROOM,string NAME_ROOM,int SIZE,bool LAB){DAL.DataAccessLayer DAL=new DAL.DataAccessLayer();DAL.Open();SqlParameter[]param=new SqlParameter[4];param[0]=new SqlParameter(@ID_ROOM),SqlDbType.int);param[0]。Value=ID_ROOM;param[0]=new SqlParameter(“@NAME_-ROOM”,SqlDbType.VarChar,50);param[0]。Value=NAME_-ROOM;param[1]=new-SqlParameter(“@SIZE”,SqlDbType.Int);param[1]。Value=SIZE;param[2]=new-SqlParameter(“@LAB”,SqlDbType.Bit);param[2]。Value=LAB;DAL.ExecuteCommand(“UPDATE_-ROOM”,param);DAL.Close();}”@AnasAl shami Room ID和Room Name在params数组中使用相同的索引,因此您声明了4个值,但只给出了3个值。我的答案仍然相同。在UPDATE_Room.cls中:param[2]。