string conn = "Data Source={0};Initial Catalog={1};User Id={2};Password={3}";
//点击链接
private void btnLink_Click(object sender, EventArgs e)
{
SqlHelper.connstr =
string.Format(conn, txtServer.Text.Trim(), "master", txtUserName.Text.Trim()
, txtPWD.Text.Trim());
cboDatabase.DisplayMember = "name";
cboDatabase.DataSource =
SqlHelper.ExecuteDataTable("select name from SYS.databases ", CommandType.Text);
}
//当选择数据库的索引发生改变时
private void cboDatabase_SelectedIndexChanged(object sender, EventArgs e)
{
treeView1.Nodes.Clear();
string databasename = cboDatabase.Text;
SqlHelper.connstr =
string.Format(conn, txtServer.Text.Trim(), databasename, txtUserName.Text.Trim(),
txtPWD.Text.Trim());
TreeNode partent = new TreeNode();
partent.Text = databasename;
treeView1.Nodes.Add(partent);
TreeNode sheet = new TreeNode();
sheet.Text = "数据表";
partent.Nodes.Add(sheet);
DataTable dtsheet =
SqlHelper.ExecuteDataTable("select TABLE_NAME ,TABLE_TYPE
from INFORMATION_SCHEMA.TABLES where TABLE_TYPE ='BASE TABLE'", CommandType.Text);
AddTreeNode(dtsheet, sheet);
TreeNode view = new TreeNode();
view.Text = "视图";
partent.Nodes.Add(view);
DataTable dtview =
SqlHelper.ExecuteDataTable("select TABLE_NAME ,TABLE_TYPE
from INFORMATION_SCHEMA.TABLES where TABLE_TYPE ='VIEW'", CommandType.Text);
AddTreeNode(dtview, view);
partent.ExpandAll();
ChangeText();
}
void ChangeText()
{
txtBll.Text = cboDatabase.Text + "Bll";
txtDAL.Text = cboDatabase.Text + "DAL";
txtModel.Text = cboDatabase.Text + "Model";
txtDatabase.Text = "DBHelper";
}
//把得到的每个数据表或视图加载到节点上
private void AddTreeNode(DataTable dt, TreeNode tn)
{
foreach (DataRow item in dt.Rows)
{
TreeNode node = new TreeNode();
node.Text = item["TABLE_NAME"].ToString();
tn.Nodes.Add(node);
}
}
private void Form1_Load(object sender, EventArgs e)
{
rboModel.Checked = true;
}
//点击代码生成
private void btnRes_Click(object sender, EventArgs e)
{
tabControl1.SelectedIndex = ;
if (rboModel.Checked)
{
//生成实体类
)
{
txtCode .Text = CreateModel();
}
else
{
MessageBox.Show("请选择数据表或视图");
}
}
if (rboDAL.Checked)
{
//生成数据访问层类
}
if (rboBll.Checked)
{
//生成业务逻辑层类
}
}
//生成Model类
string CreateModel()
{
string sheetname = treeView1.SelectedNode.Text;
StringBuilder sb = new StringBuilder();
DataTable dt =
SqlHelper.ExecuteDataTable("select COLUMN_NAME ,DATA_TYPE
from INFORMATION_SCHEMA.COLUMNS where TABLE_NAME ='" + sheetname + "'", CommandType.Text);
sb.AppendLine("using System;");
sb.AppendLine("namespace " + ToPascal(txtModel.Text) + "");
sb.AppendLine("{");
sb.AppendLine("\tpublic class " + ToPascal(sheetname) + "");
sb.AppendLine("\t{");
foreach (DataRow item in dt.Rows)
{
string columnname = item["COLUMN_NAME"].ToString();
string type = ChangeType(item["DATA_TYPE"].ToString());
sb.AppendLine("\t\tprivate " + type + " " + ToCamel(columnname) + "");
sb.AppendLine("\t\tpublic " + type + " " + ToPascal(columnname) + "");
sb.AppendLine("\t\t\tget{return " + ToCamel(columnname) + ";}");
sb.AppendLine("\t\t\tset{" + ToCamel(columnname) + "=value;}");
}
sb.AppendLine("\t}");
sb.AppendLine("}");
return sb.ToString();
}
//判断数据类型
string ChangeType(string str)
{
string res = "string";
switch (str)
{
case "int": res = "int";
break;
case "datatime": res = "DataTime";
break;
case "bit": res = "bool";
break;
default:
break;
}
return res;
}
//把一个字符串的首字母转换成小写
string ToCamel(string str)
{
, ).ToLower() + str.Substring();
}
//把一个字符串的首字母转换成小写
string ToPascal(string str)
{
, ).ToUpper() + str.Substring();
}
