c# - 更改 datagridview 列名称时无法搜索

Question

我更改了 datagridview 的列名称，现在搜索查询不起作用 它说在查询(2)中找不到列名 emp_f_name 第二个查询有什么问题

SqlConnection con = new SqlConnection(); 
con.ConnectionString = "Data Source=LFC;Initial Catalog=contactmgmt;Integrated Security=True"; 

SqlDataAdapter sda = new SqlDataAdapter("SELECT emp_id as 'EmployeeID' , emp_f_name as 'First Name', emp_l_name as 'Last Name',emp_alias as 'Alias Name',emp_contact_no as 'Contact No',emp_address as 'Address',emp_company as 'Company Name',emp_bdate as 'DOB',emp_email as'EmailID' FROM cntc_employee",con); 

dt = new DataTable(); 
sda.Fill(dt); 
dataGridView1.DataSource = dt;

dv.RowFilter = string.Format("emp_f_name LIKE '%{0}%'",textBox9.Text);

Answer 1

您已使用 emp_f_name 的别名，即 名字，请删除别名或使用别名。您需要将多字别名/列放在方括号中，例如[名字]。

dv.RowFilter = string.Format("[First Name] LIKE '%{0}%'",textBox9.Text);