rows

问题 Below is my code. I am trying to move through some rows, and if there is certain data there, then remove those rows, however the current way I have coded it, whenever I delete a row, I skip the one below it. I changed the range to go high numbered rows to low number rows, but my macro still starts at the top and moves down. I thought if I had it move up, a deletion would not cause it to skip the next item. How can I make it move from the bottom of the list upwards, or what is a better way to

问题 I have this code: private void textBox1_KeyPress(object sender, KeyPressEventArgs e) { if (e.KeyChar == 13) { db database = new db(); database.set_connection(Properties.Settings.Default.connection); DataTable result = database.search(textBox1.Text, "", ""); if (result.Rows.Count == 0) { MessageBox.Show("nothing found", "error", MessageBoxButtons.OK, MessageBoxIcon.Information); textBox1.SelectAll(); textBox1.Focus(); } else { if (dataGridView1.Rows.Count == 0) { DataGridViewRow row = new

问题 I can't get my two tables to align next to each other. The second blue box (of smaller boxes) keeps sitting below the first box. I've tried using "display: inline-block" and "float: left" on every single element, but nothing happens. Please help? #zero-data { border: 1px solid black; height: 200px; width: 200px; text-align: center; } #table-12 tr { display: inline-block; } .data-1234 { border: 1px solid blue; width: 95px; height: 95px; text-align: center; } #table-34 tr { display: inline

问题 How can I query merge rows which has same dates and get rid of null Date | Long | Short 2006-07-06 | t1 | 2006-07-06 | | t2 2006-07-05 | t1 | 2006-07-05 | | t2 2006-07-04 | t1 | 2006-07-04 | | t2 2006-07-03 | t1 | 2006-07-03 | | t2 to this Date | Long | Short 2006-07-06 | t1 | t2 2006-07-05 | t1 | t2 2006-07-04 | t1 | t2 2006-07-03 | t1 | t2 回答1: SELECT `date`, MAX(`long`) `long`, MAX(short) short FROM yourtable GROUP BY `date` 回答2: One approach to getting the specified resultset, is using a

问题 How can I query merge rows which has same dates and get rid of null Date | Long | Short 2006-07-06 | t1 | 2006-07-06 | | t2 2006-07-05 | t1 | 2006-07-05 | | t2 2006-07-04 | t1 | 2006-07-04 | | t2 2006-07-03 | t1 | 2006-07-03 | | t2 to this Date | Long | Short 2006-07-06 | t1 | t2 2006-07-05 | t1 | t2 2006-07-04 | t1 | t2 2006-07-03 | t1 | t2 回答1: SELECT `date`, MAX(`long`) `long`, MAX(short) short FROM yourtable GROUP BY `date` 回答2: One approach to getting the specified resultset, is using a

问题 I have a function that produces a few rows as string values. The values are as follows: [12*02] [12*03] [12*04] [12*05] [12*06] [12*07] [12*08] [12*09] [12*10] [12*11] [12*12] [12*13] [12*14] [12*15] The values are actually different rows. So [12*01] is row 1 and [12*02] is row # 2 and so on. I want to use these values as column headers. So [12*01] is column 1 and [12*02] is column 2 and so on. I would have used a pivot but this string will keep changing every time and thats the very reason I

问题 I found a lot of answers how to transform rows into columns in SQL. But I need to transforms rows into columns in QSqlTableModel. As I understand it should not be a very difficult task but I can't find any idea of how to realize it. Perhaps data(), setData() and some other methods could be reimplemented, but I am afraid to miss something... Or, maybe, some methods of QTableView should be reimplemented. 回答1: As I understand QIdentityProxyModel could be used to solve this problem. Unfortunately

问题 Basically this is a survey system and I want to count the Yes's and No's from my results table which has | q1 | q2 | q3 | q4 | q5 | q6 | q7 | q8 | q9 | q10 | | Yes | Yes | No | No | No | Yes | No | Yes | Yes | No | | No | Yes | No | Yes | Yes | Yes | No | No | Yes | No | | Yes | Yes | No | No | No | Yes | No | Yes | Yes | No | | No | Yes | No | Yes | Yes | Yes | No | No | Yes | No | For example I want my result to be q1 = 2 No's 2 Yes and q2 = 4 yes 0 No's and so on Then after that I was

问题 Hello I'm in need of a code to read columns and rows for C#. I've come this far: obj.MysqlQUERY("SELECT * FROM `players` WHERE name = "+name+";"); // my query function Grateful for help;] 回答1: Here is a standard block of code that I use with MySql a lot. Note that you must be using the MySql connector available here. string myName = "Foo Bar"; using (MySqlConnection conn = new MySqlConnection("your connection string here")) { using (MySqlCommand cmd = conn.CreateCommand()) { conn.Open(); cmd

问题 I am trying to delete a particular row (NOT a column) in a csv file for a class project. When I deleted columns I put: r=row r[22], r[21] # and so on So how do I specify that I want to delete rows? I am working with census data and want to get rid of that extra row of headers that are always in census tables. Thank you for any help. 回答1: Convert your csv reader to a list and slice the appropriate indexes off: import csv with open('file.csv', 'rb') as f: reader = csv.reader(f) rows = list