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private void button5_Click(object sender, EventArgs e)
{
SqlConnection conn = new SqlConnection("Data Source=MAZI-PC\\PROJECTACC;Initial Catalog=programDB;Integrated Security=True");
SqlCommand cmd = new SqlCommand("select label_sh from label_text where label_form='2' and label_form_labelID='1'", conn);
conn.Open();
label1.Text = cmd.ExecuteReader().ToString();
conn.Close();
SqlConnection conn1 = new SqlConnection("Data Source=MAZI-PC\\PROJECTACC;Initial Catalog=programDB;Integrated Security=True");
SqlCommand cmd1 = new SqlCommand("select label_sh from label_text where label_form='2' and label_form_labelID='2'", conn1);
conn1.Open();
label2.Text = cmd1.ExecuteReader().ToString();
conn1.Close();
SqlConnection conn2 = new SqlConnection("Data Source=MAZI-PC\\PROJECTACC;Initial Catalog=programDB;Integrated Security=True");
SqlCommand cmd2 = new SqlCommand("select label_sh from label_text where label_form='2' and label_form_labelID='3'", conn2);
conn2.Open();
label3.Text = cmd2.ExecuteReader().ToString();
conn2.Close();
}
我開發在C#中的一個小項目...使用Visiual Studio 2010的...我想以此來改變用戶界面語言,來從數據庫中的標籤文本一個按鈕... 我寫了這個代碼,但是有一個問題在SqlDataReader的獲取從數據庫中選擇標籤文本在C#
在標籤的文本部分它顯示 System.Data.SqlClient.SqlDataReader
我不能修復,你能幫幫我嗎?
如果您有100個標籤會發生什麼?打開和關閉連接100次? –
是的,你是對的它不是最佳的解決方案...有什麼辦法用一個連接做幾個查詢? –
打開1個連接然後全部讀取 –