如何在c#中访问从一个类到另一个类的字符串数组
本文关键字:一个 另一个 数组 字符串 访问 | 更新日期: 2023-09-27 18:20:15
我想从一个类访问另一个类的字符串数组,但我不知道如何访问。我曾尝试使用BuilderPages_AutoGenerate reference = new BuilderPages_AutoGenerate();
,但无法使用我用该行生成的reference
访问变量。我还尝试将每个数组公开,但这是不允许的。这是代码:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.Security;
using System.Data;
using System.Data.Common;
using System.Data.Sql;
using System.Data.SqlClient;
using System.Configuration;
public partial class BuilderPages_AutoGenerate : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
int i = 0;
string[] nameHolder = new string[6];
string[] typeHolder = new string[6];
Console.WriteLine("Hello World");
string connection = ConfigurationManager.ConnectionStrings["ApplicationServices"].ConnectionString;
SqlConnection conn = null;
conn = new SqlConnection(connection);
conn.Open();
DataTable schema = null;
using (var con = new SqlConnection(connection))
{
using (var schemaCommand = new SqlCommand("SELECT * FROM TestTable;", con))
{
con.Open();
using (var reader = schemaCommand.ExecuteReader(CommandBehavior.SchemaOnly))
{
schema = reader.GetSchemaTable();
}
}
}
foreach (DataRow col in schema.Rows)
{
Console.WriteLine("ColumnName={0}", col.Field<String>("ColumnName"));
nameHolder[i] = col.Field<string>("ColumnName");
typeHolder[i] = col.Field<Type>("DataType").ToString();
i++;
}
/* Testing if the name holder is getting the names of the columns in the given table */
test.Text = nameHolder[0];
test2.Text = nameHolder[1];
test3.Text = nameHolder[2];
test4.Text = nameHolder[3];
test5.Text = nameHolder[4];
test6.Text = nameHolder[5];
/* Testing to see if the type holders is getting the type of the columns */
type.Text = typeHolder[0];
type2.Text = typeHolder[1];
type3.Text = typeHolder[2];
type4.Text = typeHolder[3];
type5.Text = typeHolder[4];
type6.Text = typeHolder[5];
}
public class testing
{
//I want to use nameHolder and typeHolder here!!
}
}
提前谢谢。
您的另一个方法应该接受它需要的数据作为参数,它不应该直接进入页面类来访问数据。
public class testing
{
public static void Foo(string[] nameHolder)
{
//do stuff with nameHolder
}
}
或者,如果合适,接受构造函数中的值并将其存储为实例字段。
当BuilderPages_AutoGenerate
创建testing
的实例或调用适当的方法时,它可以传递所需的任何内容。
在testing
类的构造函数中,让它接受两个参数,一个用于_names
,另一个用于_types
,如下所示:
public class testing
{
private string[] names;
private string[] types;
public testing(string[] _names, string[] _types)
{
names = _names;
types = _types;
}
// Add methods here that do something with names and types arrays
}