Question

我目前只有一个搜索工作在1列。我想在搜索中添加多个列。所以我可以搜索Student_FName，Student_SName和Student_Email

以下是我目前正在使用的代码。我需要在其中添加OR语句吗？或者是否存在包含多个行过滤器的另一种方法

private void SearchTxt_TextChanged(object sender, EventArgs e)
        {
            try 
                { 

                    var bindData = (BindingSource)studentGridView.DataSource;
                    var dataTable = (DataTable)bindData.DataSource;
                    dataTable.DefaultView.RowFilter = string.Format("Student_Username LIKE '%{0}%'", SearchTxt.Text );
                    studentGridView.Refresh();

                }
            catch(Exception ex)
                {
                    MessageBox.Show(ex.Message);
                }
        }

Answer 1

使用从数据表中选择

    private void SearchTxt_TextChanged(object sender, EventArgs e)
    {
        try 
            { 

                var bindData = (BindingSource)studentGridView.DataSource;
                var dataTable = (DataTable)bindData.DataSource;
                var rows = dataTable.Select (string.Format("Student_Username LIKE '%{0}%' AND [Some other filter]", SearchTxt.Text ));

                studentGridView.DataSource = rows.CopyToDataTable()
                studentGridView.Refresh();

            }
        catch(Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
    }

Answer 2

 private void SearchTxt_TextChanged(object sender, EventArgs e)
        {
            try 
                { 

                    var bindData = (BindingSource)studentGridView.DataSource;
                    var dataTable = (DataTable)bindData.DataSource;
                    dataTable.DefaultView.RowFilter = string.Format("Student_Username LIKE '%{0}%' OR Student_FName LIKE '%{0}%'", SearchTxt.Text );
                    studentGridView.Refresh();

                }
            catch(Exception ex)
                {
                    MessageBox.Show(ex.Message);
                }
        }

Answer 3

dict.values

DataGridView多列搜索

3 个答案: