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父窗体设计
代码实现的功能：
- 模板方法
- 调用封装的clear类
- 判断控件集合信息是否填写完成（foreach ）
- 选择与或的时候，出来下一条信息（switch—case）
- 存储过程
DAL层
存储过程
USE [jifang]
GO
/****** Object: StoredProcedure [dbo].[PROC_GroupCheck] Script Date: 2018/12/25 10:47:17 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER PROCEDURE [dbo].[PROC_GroupCheck]
@CmbName1 varchar(50),
@CmbName2 varchar(50),
@CmbName3 varchar(50),
@CmbOper1 varChar(10),
@CmbOper2 varChar(10),
@CmbOper3 varChar(10),
@CmbGroup1 varchar(50),
@CmbGroup2 varchar(50),
@GetDataTable varchar(50),
@txtInfo1 varchar(50),
@txtInfo2 varchar(50),
@txtInfo3 varchar(50)
AS
declare @TempSql varchar(500)--临时存放Sql语句
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET @TempSql='Select * from '+@GetDataTable+' Where'+CHAR(32)+@CmbName1+@CmbOper1 +CHAR(39)+@txtInfo1 +CHAR(39)
if (@CmbGroup1!='')
BEGIN
SET @TempSql =@TempSql +CHAR(32) +@CmbGroup1 +CHAR(32)+@CmbName2 +@CmbOper2 +CHAR(39)+@txtInfo2 +CHAR(39)
if (@CmbGroup2!='')
begin
SET @TempSql =@TempSql +CHAR(32)+@CmbGroup2 +CHAR(32)+@CmbName3 +@CmbOper3 +CHAR(39)+@txtInfo3 +CHAR(39)
end
END
exec(@TempSql)
END
父窗体代码
public partial class GroupInquiry_UI : Form
{
public GroupInquiry_UI()
{
InitializeComponent();
}
#region 调用封装的clear类，控件初始化
private void btnClear_Click(object sender, EventArgs e)
{
//Clear这个类是之前封装的，现在直接用！Clear(this, panel1)是Clear中的一个重载！
Clear clear = new Clear(this, panel1);
DataTable Table = null;
dataGridView1.DataSource = Table;
//控件的初始化
CmbName2.Enabled = false;
CmbName3.Enabled = false;
CmbMark2.Enabled = false;
CmbMark3.Enabled = false;
txtInfo2.Enabled = false;
txtInfo3.Enabled = false;
CmbRelation1.Enabled = false;
CmbRelation2.Enabled = false;
}
#endregion
#region 查询
private void btnSearch_Click(object sender, EventArgs e)
{
foreach (Control cl in panel1.Controls)
{
if ((cl is ComboBox || cl is TextBox) && cl.Enabled == true)
{
if (cl.Text.Trim() == "")
{
MessageBox.Show("请将您的信息填写完整！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;//退出过程
}
}
}
Entity.GroupInquiry_Info groupinquiry = new Entity.GroupInquiry_Info();//实例化实体
Facade.GroupInquiry_Facade groupFine = new Facade.GroupInquiry_Facade();
//给实体赋值
groupinquiry.CmbName1 = ToName(CmbName1.Text.Trim());
groupinquiry.CmbName2 = ToName(CmbName2.Text.Trim());
groupinquiry.CmbName3 = ToName(CmbName3.Text.Trim());
groupinquiry.CmbOper1 = CmbMark1.Text.Trim();
groupinquiry.CmbOper2 = CmbMark2.Text.Trim();
groupinquiry.CmbOper3 = CmbMark3.Text.Trim();
groupinquiry.CmbGroup1 = ToName(CmbRelation1.Text.Trim());
groupinquiry.CmbGroup2 = ToName(CmbRelation2.Text.Trim());
groupinquiry.txtInfo1 = txtInfo1.Text.Trim();
groupinquiry.txtInfo2 = txtInfo2.Text.Trim();
groupinquiry.txtInfo3 = txtInfo3.Text.Trim();
groupinquiry.GetDataTable = Getdbtable();//从数据库中获取表格（选择调用那个数据库）
DataTable result = new DataTable();
result = groupFine.GroupCheck(groupinquiry);
if (result.Rows.Count == 0)//没有查询到
{
MessageBox.Show("没有复合条件的记录，请重新选择条件");
}
else
{
//MessageBox.Show("查找成功！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
ToDgv(groupinquiry);//查询到以后调用子窗体中重写的方法显示数据
}
}
#endregion
#region 关闭
private void btnQuit_Click(object sender, EventArgs e)
{
this.Close();
}
#endregion
#region 自己构造的虚方法
public virtual string ToName(string combo)//转换中文字符为英文字符,在子窗体进行重写！
{
return "";
}
protected virtual string Getdbtable() //定义一个数据库中不同表的名字的虚方法，在子窗体进行重写
{
return "";
}
protected virtual void ToDgv(Entity.GroupInquiry_Info enGroupFind)//显示数据
{
}
#endregion
#region CmbRelation1选择与或的时候，出来下一条信息
private void CmbRelation1_SelectedIndexChanged(object sender, EventArgs e)
{
string relationship = CmbRelation1.Text.Trim();
switch (relationship)
{
case "与":
CmbName2.Enabled = true;
CmbMark2.Enabled = true;
txtInfo2.Enabled = true;
break;
case "或":
CmbName2.Enabled = true;
CmbMark2.Enabled = true;
txtInfo2.Enabled = true;
break;
}
}
#endregion
#region 当第一行所有的内容添加完毕，此时关系下拉框被激活
private void txtContent1_TextChanged(object sender, EventArgs e)
{
if (CmbName1.Text != "" && CmbMark1.Text != "" && txtInfo1.Text != "")
{
CmbRelation1.Enabled = true;
}
}
#endregion
#region 当第二行所有的内容添加完毕，此时关系下拉框被激活
private void txtContent2_TextChanged(object sender, EventArgs e)
{
if (CmbName2.Text != "" && CmbMark2.Text != "" && txtInfo2.Text != "")
{
CmbRelation2.Enabled = true;
}
}
#endregion
#region CmbRelation2选择与或的时候，出来下一条信息
private void CmbRelation2_SelectedIndexChanged(object sender, EventArgs e)
{
string relationship = CmbRelation1.Text.Trim();
switch (relationship)
{
case "与":
CmbName3.Enabled = true;
CmbMark3.Enabled = true;
txtInfo3.Enabled = true;
break;
case "或":
CmbName3.Enabled = true;
CmbMark3.Enabled = true;
txtInfo3.Enabled = true;
break;
}
}
#endregion
private void GroupInquiry_UI_Load(object sender, EventArgs e)
{
#region 操作符
CmbMark1.Items.Add(">");
CmbMark1.Items.Add("<");
CmbMark1.Items.Add("=");
CmbMark1.Items.Add("<>");
CmbMark2.Items.Add(">");
CmbMark2.Items.Add("<");
CmbMark2.Items.Add("=");
CmbMark2.Items.Add("<>");
CmbMark3.Items.Add(">");
CmbMark3.Items.Add("<");
CmbMark3.Items.Add("=");
CmbMark3.Items.Add("<>");
#endregion
#region 设置控件不可用状态
CmbMark2.Enabled = false;
CmbMark3.Enabled = false;
CmbName2.Enabled = false;
CmbName3.Enabled = false;
CmbRelation1.Enabled = false;
CmbRelation2.Enabled = false;
txtInfo2.Enabled = false;
txtInfo3.Enabled = false;
#endregion
#region 设置复选框只可以选择不可以输入
this.CmbMark1.DropDownStyle = ComboBoxStyle.DropDownList;
this.CmbMark2.DropDownStyle = ComboBoxStyle.DropDownList;
this.CmbMark3.DropDownStyle = ComboBoxStyle.DropDownList;
this.CmbName1.DropDownStyle = ComboBoxStyle.DropDownList;
this.CmbName2.DropDownStyle = ComboBoxStyle.DropDownList;
this.CmbName3.DropDownStyle = ComboBoxStyle.DropDownList;
this.CmbRelation1.DropDownStyle = ComboBoxStyle.DropDownList;
this.CmbRelation2.DropDownStyle = ComboBoxStyle.DropDownList;
#endregion
}
#region 封装清空类
public class Clear
{
public Clear(GroupInquiry_UI form, Panel panal) //如果有panel控件，此处也可以添加一个panel清除
{
foreach (Control ctl in form.panel1.Controls)
{
//清空combobox
if (ctl is ComboBox)
{
ComboBox cmb = ctl as ComboBox;
cmb.SelectedIndex = -1;
}
//清空textbox
else if (ctl is TextBox)
{
TextBox txt = ctl as TextBox;
txt.Text = string.Empty;
}
}
}
}
#endregion
#region 清空，控件初始化
private void btnClear_Click_1(object sender, EventArgs e)
{
Clear clear = new Clear(this, panel1);
DataTable Table = null;
dataGridView1.DataSource = Table;
//控件的初始化
CmbMark2.Enabled = false;
CmbMark3.Enabled = false;
CmbName2.Enabled = false;
CmbName3.Enabled = false;
CmbRelation2.Enabled = false;
txtInfo2.Enabled = false;
txtInfo3.Enabled = false;
}
#endregion
#region 构造一个没有任何返回值的虚方法，来根据CmbName的内容，出现相应的下拉内容！
public virtual void addcontent(ComboBox name, ComboBox mark)
{
}
#endregion
如何生成子窗体
1. U层：添加——新建项
2. Windows Forms——继承的窗体
3. 确定——指定要从中继承的组件——确定
继承窗体
public partial class AdminGroupInquiry_UI : UI.Admin.GroupInquiry_UI
{
public AdminGroupInquiry_UI()
{
InitializeComponent();
}
#region 重写了英文转换成数据库中所识别英文的方法
public override string ToName(string combo)//重写虚方法，将自己要的字段转化成数据库字段
{
switch (combo)
{
case "卡号":
return "stuID";
case "姓名":
return "stuName";
case "性别":
return "sex";
case "年龄":
return "age";
case "学院":
return "department";
case "专业":
return "major";
case "班级":
return "grade";
case "与":
return "and";
case "或":
return "or";
default:
return "";
}
}
#endregion
#region 重写了获取数据库中表的名字的方法
protected override string Getdbtable() //Select语句需求的数据库
{
return "StuCard_Info";
}
#endregion
#region 重写显示查询到的数据库中的数据
protected override void ToDgv(Entity.GroupInquiry_Info enGroupFind)//重写方法，显示结果
{
dataGridView1.DataSource = "";
DataTable dt = new DataTable();
Facade.GroupInquiry_Facade gf = new Facade.GroupInquiry_Facade();//去拿到数据库的数据
dt = gf.GroupCheck(enGroupFind);
if (dt.Rows.Count == 0)
{
MessageBox.Show("没有记录，请重新查询");
}
else
{
//子类中的需要的东西，父窗体只负责显示
dataGridView1.DataSource = dt;
dataGridView1.Refresh();
}
}
#endregion
#region 重写根据CmbName的值，显示不同的cbomark的值
public override void addcontent(ComboBox name, ComboBox cbomark)
{
switch (name.Text)
{
case "姓名":
case "性别":
case "学院":
case "专业":
cbomark.Text = "";
cbomark.Items.Clear();
cbomark.Items.Add("=");
cbomark.Items.Add("<>");
break;
case "卡号":
case "班级":
case "年龄":
cbomark.Text = "";
cbomark.Items.Clear();
cbomark.Items.Add("=");
cbomark.Items.Add("<>");
cbomark.Items.Add("<");
cbomark.Items.Add(">");
break;
}
}
#endregion
private void AdminGroupInquiry_UI_Load(object sender, EventArgs e)
{
CmbName1.Items.Add("卡号");
CmbName1.Items.Add("姓名");
CmbName1.Items.Add("性别");
CmbName1.Items.Add("专业");
CmbName1.Items.Add("年龄");
CmbName1.Items.Add("学院");
CmbName1.Items.Add("班级");
CmbName2.Items.Add("卡号");
CmbName2.Items.Add("姓名");
CmbName2.Items.Add("性别");
CmbName2.Items.Add("专业");
CmbName2.Items.Add("年龄");
CmbName2.Items.Add("学院");
CmbName2.Items.Add("班级");
CmbName3.Items.Add("卡号");
CmbName3.Items.Add("姓名");
CmbName3.Items.Add("性别");
CmbName3.Items.Add("专业");
CmbName3.Items.Add("年龄");
CmbName3.Items.Add("学院");
CmbName3.Items.Add("班级");
}
