第2部分开始显示表格感谢Wayne对第1部分的回答 [英] Part2 Getting to display the table thanks to Wayne for the answer to part1

问题描述

特别感谢
现在，我要做的就是显示数据库中的表，这就是我尝试过的方法:

Special thanks to
Now what I want to do is display the table in the database, this is what I have tried:

int DisplayTable()
        {
            using (SqlConnection myConnection2 = new SqlConnection(DBConn))
           {
              SqlCommand MyCommand2 = new SqlCommand("SELECT * from TheTableName;", myConnection2);
              myConnection2.Open();
              SqlDataReader reader = MyCommand2.ExecuteReader();

           GridView1.DataSource  = reader;
           GridView1.DataBind();

           return MyCommand2.ExecuteNonQuery();
           }
      }

然后像以前一样放入按钮:

Then put in the button like I did before:

protected void btnDisplay_Click(object sender, EventArgs e)
        {
            DisplayTable();

        }

but this does not work and gives the error:

"Both DataSource and DataSourceID are defined on 'GridView1'. Remove one definition."

What should I do?

特别感谢韦恩·盖拉德(Wayne Gaylard)对我的第一个问题的回答，如果您仍然在那里，请提供帮助.

在此先感谢...

Special thanks to Wayne Gaylard for the answer to my first question, if you are still out there please help.

Thanks in advance...

推荐答案

答案在错误中:

"DataSource和DataSourceID都在GridView1上定义.删除一个定义."

删除一个定义.猜测一下，检查您的Gridview定义，并取出DataSourceID分配，因为您在代码中设置了DataSource.

The answer is in the error:

"Both DataSource and DataSourceID are defined on ''GridView1''. Remove one definition."

Remove one definition. At a guess, check your Gridview definition, and take out the DataSourceID assignment, since you are setting the DataSource in the code.

.aspx页面上的这一行自动放置在此处"DataSourceID ="SqlDataSource1"这是我删除的内容.

然后我得到一个关于仍然打开的阅读器的错误...

我的工作方式如下:

This line on my .aspx page was put there automatically "DataSourceID="SqlDataSource1" Which is what I deleted.

Then I got an error about the reader that was still opened...

I got it work as follows:

int DisplayTable()
        {
            using (SqlConnection myConnection2 = new SqlConnection(DBConn))
           {
              SqlCommand MyCommand2 = new SqlCommand("SELECT * from TheTableName;", myConnection2);
              myConnection2.Open();
              SqlDataReader reader = MyCommand2.ExecuteReader();
           GridView1.DataSource  = reader;
           GridView1.DataBind();
           reader.Close();
           return MyCommand2.ExecuteNonQuery();
           }
      }

作为一个刚开始编程的学生，我想感谢所有给我这么好的答案的人，这些答案适用于我的问题，只要有一种方法可以让他们知道我有多高兴.

As a student who has only just started programming, I would like to thank everyone who has given me such good answers that apply to my questions, if only there was a way I could let them know how gratefull I am.

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