本文整理汇总了C#中Npgsql.NpgsqlDataAdapter.FillSchema方法的典型用法代码示例。如果您正苦于以下问题:C# NpgsqlDataAdapter.FillSchema方法的具体用法?C# NpgsqlDataAdapter.FillSchema怎么用?C# NpgsqlDataAdapter.FillSchema使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Npgsql.NpgsqlDataAdapter
的用法示例。
在下文中一共展示了NpgsqlDataAdapter.FillSchema方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: Select
/// <summary>
/// Executes a SELECT statement against the database and returns a disconnected data table. NOTE: Use this overload to work with Typed DataSets.
/// </summary>
/// <param name="selectQuery">The query to be executed against the database</param>
/// <param name="dataTable">Table that will contain the result</param>
/// <returns>A data table object</returns>
public override DataTable Select(Query selectQuery, DataTable dataTable)
{
#region Input Validation
if (selectQuery == null)
{
throw new ArgumentNullException("selectQuery");
}
if (dataTable == null)
{
throw new ArgumentNullException("dataTable");
}
#endregion Input Validation
if (selectQuery.SqlStatement.Contains("TOP 2"))
{
selectQuery = CreateQuery(selectQuery.SqlStatement.Replace("TOP 2 ", string.Empty).Replace(";",string.Empty) + " LIMIT 2");
}
if (selectQuery.SqlStatement.Contains("["))
{
selectQuery = CreateQuery(selectQuery.SqlStatement.Replace("[", string.Empty).Replace("]", string.Empty));
}
IDbConnection connection = GetConnection(connectionString);
NpgsqlDataAdapter adapter = new NpgsqlDataAdapter();
adapter.SelectCommand = (NpgsqlCommand)GetCommand(selectQuery.SqlStatement, connection, selectQuery.Parameters);
try
{
//Logger.Log(selectQuery);
adapter.Fill(dataTable);
adapter.FillSchema(dataTable, SchemaType.Source);
return dataTable;
}
catch (Exception ex)
{
throw new System.ApplicationException("Error executing select query against the database.", ex);
}
}