DataSource Controls :: A Query Generator To Search In The DB?
May 27, 2010
I'm looking for something similar to EasyQuery. Some sort of control that lets the user or the admin to select some tables, then some columns for the tables and the conditions, so he can do the query without entering the mysql sentence, only selecting the tables and the rows...
I want to be able to make a query from three dropdownlists but not all three have to be selected to create results. This is what I have so far :
sub getdata (src as object, e as eventargs) dim strsql as string dim myconnection as oledbconnection dim mycommand as oledbcommand myconnection = new oledbconnection(ConfigurationSettings.AppSettings("MM_CONNECTION_STRING_csrdb")) strsql ="SELECT tbl_case.Case_id, tbl_case.Title, tbl_case.Description, Tbl_Country.Country_Name, tbl_principle.Principle_Name," _ & "tbl_keyword.Keyword FROM tbl_keyword INNER JOIN ((tbl_principle INNER JOIN (Tbl_Country INNER JOIN tbl_case ON Tbl_Country.Country_Id tbl_case.country) ON tbl_principle.Principle_ID = tbl_case.Principle) INNER JOIN tbl_Usedkeywords ON tbl_case.Case_id = tbl_Usedkeywords.case) ON tbl_keyword.Keyword_id = tbl_Usedkeywords.keyword " _ & "WHERE " if DLPrinciple.selectedindex=0 then strsql = strsql & "((tbl_principle.Principle_Name) like '%')" else if DLCountry.Selectedindex=0 then strsql = strsql & "((tbl_country.country_Name) like '%')" else if DLKeyword.selectedindex=0 then strsql = strsql & "((tbl_keyword.Keyword) like '%')" else strsql = strsql & "((tbl_principle.principle_Name) = '" & session("infoprinciple") & "')" + "((tbl_country.country_Name) = '" & session("infoland") & "')" + "((tbl_keyword.keyword) = '" & session("infokeyword") & "')" end if end if end if
This is working perfectly with only one dropdownlist but I can not figure out how to make it work with several.
I'm developing an ASP.NET application which has allows users to search for other users based on their name. This search is done using Linq to SQL. At the moment, I've only got 10 or so users in my database, so I can't really test the efficiency of my search query. I'm new to testing and such, but what is the best way to simulate 100/1000/10000 users on a query? Is there a tool (preferably free) that would allow me to perform tests to see how quickly the database can be searched if it had x number of users?
I've been reading up on SQL Injection and want to go back and implement some measures to prevent these kinds of potential attacks.For example, on our company intranet, we have an address book feature and a search function so the user is able to look a company or a person up from the database/The user will enter their query into a TextBox control and click the Submit button, calling the following function:addybookDS1.SelectCommand = "SELECT * FROM [addressbook] WHERE COMPANY LIKE '%" + search1 + "%' OR CONTACT LIKE '%" + search1 + "%' OR LASTNAME LIKE '%" + search1 + "%' OR EMAIL LIKE '%" + search1 + "%'"search1 is the TextBox controlI had previously implemented this measure:search1 = Replace(search1, "'", "''")But I want to know if there is more I can do here and how I can go about doing it.
I am using this code to find titles depending on user criteria:
[Code]....
The search is non-english charachters, and it has some problems. when you looks for "Marker" and in database you have this title: "Markers" it won't find it..... This search just not good enough and I am looking to replace it urgently....
I want a word search i doing the search like this , but it is giving character wherever there is in the string,if i give two character like ok it is searching for a full string where ever Ok is there select * from table1 where textfield like '%word%' this query would match word but also wordabc how can i make it aware of delimitions
How i can make the normal search string to sql server full text search parse, because when we are user enyer search text "how to run windows schedule in C#", in database we have article to to this, but data not returning and sometime is say error in key word and etc.
now have tried to locate and find anything about how to make a
TEXTBOX and A Button "Search"
Problem is that I have made this "bellow" and when I then enter a "value" into texbox2 and hit enter on the button it wont show me the "emnenummer" that I have requested.
im not even sure this is the correct way to do a "search"
1. I have a GridView on my page and it uses sqldatasource with parameterized query. What I want to do is, on page load (where nothing has been selected so no parameter supplied), I want it to query everything (something like SELECT * FROM [this_table]) but since my SelectCommand is something like
SELECT * FROM [this_table] WHERE [this_column] = @someParameters AND [that_column] = @someParameters.
Can I play around with default value to achieve something like that but how ? Now, when the page loads, it doesn't show anything (No Gridview).
2. On my page, I made something like (username, gender, address, and more) and one single search button. That means, no single control enable auto postback. What I am trying to accomplish is building dynamic query
(if username specifed -> SELECT * FROM [this_table] WHERE [username] LIKE @username).
If both username and gender are specified (SELECT * FROM [this_table] WHERE [username] LIKE @username AND [gender] = @gender) and you know the rest. How can I do this using GridView and SqlDataSource ? To my knowledge, I can only specify one SELECT statement in a sqldatasource.
By right clicking on my database i created a query in server explorer. But where are this query stored can't find them back. I should aspect that their is a folder query's like there is a folder tables but this isn't the case.
Dim MediaQuery = From m In dB.DOWNLOADS _Where m.ID = id _Select
which returns a record from the database. One of the fields in the record is a FK to another table. I need to read this value to be able to set a dropdown based on the ID but I can't work out how to access it. For a standard record I can just do the following txtTitle.Text = MediaQuery.FirstOrDefault().TITLE
However with the foreign key it doesn't work like that. I've tried drpGroup.SelectedIndex = MediaQuery.FirstOrDefault().DOWNLOAD_GROUPS.ID where DOWNLOAD_GROUPS is the FK field but it returns Object reference not set to an instance of an object. If you're simply wanting to read some values from a single db record in the entitiy framework and one is a foreign key how should I go about getting the value?
I Have A TextBox for Search Box And A button On My About Us Page ...i want to redirect The Search Box Value On default Page With Search Data from My Datalist That is belongs to Default Page.When I Click On Search Button The Value of Search Box Redirect To Default Page And Show value Data from Datalist
I'm working on a job seeking website where the job seeker can search for a job , the search box is located in the master page, that's why i passed the keywords as a query string, and then the matching jobs will be displayed in a listview.
the keywords will be taken from two controls: a drop down list which the user can choose the location of the job, and a text box where he can type a keyword.
the select command of the sqlDataSource of the data list is as the following:
I want to create a search form for a table that has many columns. According to input criteria the query will have a where with conditions related to the columns selected or NONE. How can I create a dynamic query according to selected conditions ? is there an example on the net that I can use?
In one of my column have a comma separated list of keywords.I have to build a query that will return the matching rows whenever user enters the keyword.for ex.if my keywords are java,.net,sql,php,ajax then on search of java OR java,sql OR php,java should return the above row.
I want to use a TextBox with the Ajax Toolkit Calender Extender as a control to return all activities on a particular date regardless of what time they are at into a GridView.I don't understand how to set up the SQL Statement to properly do this. If it helps here is my current SQL statement
I'm on training in a company and i'm making a web application with an SQL server database..Now I created everything but i need to know how to program a search function..t's the point that when I search to a computer it'll put all the pc's with the matching word into the dropdownlist..Like when you search for "A" I get all the pc's wich has an 'A' in their name, I made everything, in the query builder I made a parameter with the textbox but i need not EXACT the value I typed but verything wich has it in it.
I need to have search form in my web app . I want visitor input text in textbox control and when he click on Search button it check DB table for his input text.
I dould like if user input "Windows 7" and I have the sentence in DB Records as "My be Some Windows Generation .." it list this record.
in other word I want to search for any word that users entered in DB.
Could any one tell me efficient way instead of split input text to words and then execute search query per word?
Im working on my Dissertation and am seriously stuck. Im creating a blogging site with the ability to log in, this will also include the ability to search for projects etc. (created in Visual Studio in VB)
There are different roles: Student, admin, tutor. the table is made up of 2 tables aspnetdb.mdf and blogging.accdb; the first was created by visual studio and the later is mine that contains the projects, bloggs etc.
I want to use the asp:loginName in a search that is sourcing its data from the blogging database, Iv tried for days to do it myself, by trying to write an inner join manually, using its full name etc but keep coming up against a brick wall.