/// <summary>
/// 拼接sql执行语句
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button2_Click(object sender, EventArgs e)
{
ConfigModel configModel = new ConfigModel();
configModel.MARK = "@";//SQL的连接类型
SqlHelper.connStr = textBox2.Text.Trim();
DataTable dt = SqlHelper.GetDataTable(" select * from dbo.sysobjects where xtype = 'U' order by name");
if (dt == null)
{
MessageBox.Show("数据库连接失敗了！");
return;
}
string sql = @"
SELECT
表名 = case when a.colorder=1 then d.name else '' end,
表说明 = case when a.colorder=1 then isnull(f.value,'') else '' end,
字段序号 = a.colorder,
columnName = a.name,
标识 = case when COLUMNPROPERTY( a.id,a.name,'IsIdentity')=1 then 'Y'else 'N' end,
primaryKey = case when exists(SELECT 1 FROM sysobjects where xtype='PK' and parent_obj=a.id and name in (
SELECT name FROM sysindexes WHERE indid in(
SELECT indid FROM sysindexkeys WHERE id = a.id AND colid=a.colid))) then 'Y' else 'N' end,
columnType = b.name,
占用字节数 = a.length,
char_col_decl_length = COLUMNPROPERTY(a.id,a.name,'PRECISION'),
小数位数 = isnull(COLUMNPROPERTY(a.id,a.name,'Scale'),0),
nullable = case when a.isnullable=1 then 'N'else 'Y' end,
data_default = isnull(e.text,''),
columnComment = isnull(g.[value],'')
FROM syscolumns a
left join systypes b on a.xusertype=b.xusertype
inner join sysobjects d on a.id=d.id and d.xtype='U' and d.name<>'dtproperties'
left join syscomments e on a.cdefault=e.id
left join sys.extended_properties g on a.id=g.major_id and a.colid=g.minor_id
left join sys. extended_properties f on d.id=f.major_id and f.major_id=0
where d.name=" + configModel.MARK + "a order by a.id,a.colorder";
SqlParameter[] sps = { new SqlParameter(configModel.MARK + "a", comboBox1.Text.Trim()) };
DataTable dt_tables = SqlHelper.GetDataTable(sql, sps);
if (dt_tables == null)
{
return;
}
if (dt_tables.Rows.Count > 0)
{
#region 生成内容
StringBuilder sb_column1 = new StringBuilder(); //格式如 NO_ID,ST_NAME,ST_VALUES,NO_ORDER,ST_OTHER,ST_VALUES_ENG
StringBuilder sb_column2 = new StringBuilder(); //格式如 @NO_ID,@ST_NAME,@ST_VALUES,@NO_ORDER,@ST_OTHER,@ST_VALUES_ENG
StringBuilder sb_column3 = new StringBuilder(); //格式如 new SqlParameter("@NO_ID", SqlType.Number,4),
StringBuilder sb_column4 = new StringBuilder(); //格式如 parameters[0].Value = model.NO_ID;
StringBuilder sb_column5 = new StringBuilder(); //格式如 NO_ID=@NO_ID,ST_NAME=@ST_NAME
for (int j = 0; j < dt_tables.Rows.Count; j++)
{
string colName = dt_tables.Rows[j]["columnName"].ToString().Trim(); //字段名
string colType = CommonCode.GetColType(dt_tables.Rows[j]["columnType"].ToString()); //字段类型
if (j == dt_tables.Rows.Count - 1)
{
sb_column1.Append(colName);
sb_column2.Append(configModel.MARK + colName);
sb_column3.AppendLine(" new SqlParameter(\""+ configModel.MARK + colName + "\", model." + colName + ";)};");
//sb_column4.AppendLine(" parameters[" + j + "].Value = model." + colName + ";");
sb_column4.AppendLine(" "+ colName + "= model." + colName + ",");
sb_column5.Append(colName + "=" + configModel.MARK + colName);
}
else
{
sb_column1.Append(colName + ",");
sb_column2.Append(configModel.MARK + colName + ",");
sb_column3.AppendLine(" new SqlParameter(\""+ configModel.MARK + colName + "\", model." + colName + "),");
//sb_column4.AppendLine(" parameters[" + j + "].Value = model." + colName + ";");
sb_column4.AppendLine(" "+ colName + "= model." + colName + ",");
sb_column5.Append(colName + "=" + configModel.MARK + colName + ",");
}
}
richTextBox6.Text = sb_column1.ToString() + "\r\n\r\n";
richTextBox6.Text += sb_column2.ToString() + "\r\n\r\n";
richTextBox6.Text += sb_column5.ToString() + "\r\n\r\n";
richTextBox3.Text = sb_column3.ToString() + "\r\n\r\n";
richTextBox3.Text += sb_column4.ToString() + "\r\n\r\n";
////生成model
//CreateModel(dt_tables);
#endregion 生成内容
}
}
