select

问题 I am figuring out a way to Select Multiple items in list view and deleting them on a certain action. What I can't figure out is, how should I have these multiple items selected? I would think there is a list that I would need to add them all into, but what's the best way to approach this situation, do you have any ideas? Thanks! -Kevin 回答1: Set SelectionMode to Multiple or Extended and iterate through theSelectedItems in your ListView . 回答2: I would suggest do not use the SelectedItems

问题 I have a MySQL query that I thought was working fine to retrieve all the ancestors of each node, starting from the top node, down to its immediate node. However when I added a 5th level to the nested set, it broke. Below are example tables, queries and SQL Fiddles: Four Level Nested Set: CREATE TABLE Tree (title varchar(20) PRIMARY KEY, `tree` int, `left` int, `right` int); INSERT Tree VALUES ("Food", 1, 1, 18), ('Fruit', 1, 2, 11), ('Red', 1, 3, 6), ('Cherry', 1, 4, 5), ('Yellow', 1, 7, 10),

问题 This question already has answers here : Selecting rows in data.frame based on character strings (1 answer) Get all the rows with rownames starting with ABC111 (2 answers) Closed 2 years ago . I'm now trying to figure out a way to select data having specific values in a variable, or specific letters, especially using similar algorithm that starts_with() does. Say I have a data named "school" as below: Name Math English James 80 90 Tom 91 91 Shaun 99 71 Jack 92 91 here, select(school, starts

问题 This question already has answers here : Select values that meet different conditions on different rows? (6 answers) Closed 2 years ago . A MySQL database contains two tables with a one-to-many relationship: One user can have many settings: Users: id username password -------------------------- 1 Bob 123 2 Alice abc ... Settings: id user_id key value ----------------------------- 1 1 color blue // Bobs settings... 2 1 theme xy 3 1 size 5 4 2 size 5 // Alices settings... Problem: How to find

问题 I have below tables: I want to create View such that for descr = 'O' and for common id_isin field value from both tables, check the ratio field and take only the row where ratio field value is low. for descr = 'O' and if the id_isin exist in one table but not in another then take those rows(bidirectional) For all the rows where descr ! = 'O' , take all those rows from table IS_ID_TST . Below is the expected output from view for example: ID_ISIN QUOTE_CRNY DESCR RATIO ALLOCATIONASSETTYPE

问题 I have below tables: I want to create View such that for descr = 'O' and for common id_isin field value from both tables, check the ratio field and take only the row where ratio field value is low. for descr = 'O' and if the id_isin exist in one table but not in another then take those rows(bidirectional) For all the rows where descr ! = 'O' , take all those rows from table IS_ID_TST . Below is the expected output from view for example: ID_ISIN QUOTE_CRNY DESCR RATIO ALLOCATIONASSETTYPE

问题 I have below tables: I want to create View such that for descr = 'O' and for common id_isin field value from both tables, check the ratio field and take only the row where ratio field value is low. for descr = 'O' and if the id_isin exist in one table but not in another then take those rows(bidirectional) For all the rows where descr ! = 'O' , take all those rows from table IS_ID_TST . Below is the expected output from view for example: ID_ISIN QUOTE_CRNY DESCR RATIO ALLOCATIONASSETTYPE

问题 I have below tables: I want to create View such that for descr = 'O' and for common id_isin field value from both tables, check the ratio field and take only the row where ratio field value is low. for descr = 'O' and if the id_isin exist in one table but not in another then take those rows(bidirectional) For all the rows where descr ! = 'O' , take all those rows from table IS_ID_TST . Below is the expected output from view for example: ID_ISIN QUOTE_CRNY DESCR RATIO ALLOCATIONASSETTYPE

问题 I am making an application where I have multi select dropdown.. In which there is a requirement that I need to place the selected items below the select container. Working Snippet: #container { position: relative; text-align: left; width:100%; } #container > div { padding-top: 2em; } ._2iA8p44d0WZ { border: 1px solid #cccccc; border-radius: 4px; padding: 5px; min-height: 22px; position: relative; } ._7ahQImy { padding: 4px 10px; background: #0096fb; margin-right: 5px; margin-bottom: 5px;

问题 I am making an application where I have multi select dropdown.. In which there is a requirement that I need to place the selected items below the select container. Working Snippet: #container { position: relative; text-align: left; width:100%; } #container > div { padding-top: 2em; } ._2iA8p44d0WZ { border: 1px solid #cccccc; border-radius: 4px; padding: 5px; min-height: 22px; position: relative; } ._7ahQImy { padding: 4px 10px; background: #0096fb; margin-right: 5px; margin-bottom: 5px;