ADO.NET :: Binary Tree - Want To Check All The Records?
Dec 20, 2010
I m creating a project in which only two members can register by using one perticular ID as a Sponser ID. I am using VS 2008 with C# language and LINQ as Query. At the point of insertion for register entries, i invoke a method BINARYCHECK which contains LINQ query. I passed _txtSponserId as a parameter to the BINARYCHECK method. Now in the function definition section i have written LINQ query which checks in database that if particular sponser ID is bieng used maximum of two times by any other user. But i only can check one record in the database. I want to check for all the records. Below is my code:
var a =UserBl.BinaryCheck(_txtSponserId);//function call
public static List<tblUser> BinaryCheck(string s)
{[code]....
This code doesnt check for how many times SponserID is Used. This is why i get i=1 and return data even if SponserId is used only One time. On the contraty i want to implement that if SponserId is used only once in database then function should return null other wise it shold return 1. How to do this?
i am working on Multi Level Products.i need to display data in the form of binary tree how to go for it. is there any control to display it or is there any other way
I have a table in my database that holds the parent child relationships for a distributor binary tree. I need to be able to return this query into my application and have a recursive method to go through any given tree and traverse through all subtrees of the parent tree in order to calculate commissions. Does anyone have any working examples of binary tree traversal?
Also, I'm not exactly sure how I will pass this tree structure to my application. Would I return it as XML?
I just want to build a quad/Binaray tree in my Webform the data is collected from the DB how it is possible.
Now i am bulding a sample application that deals the all activites of chain marketting(network ) marketing system here i have to build tree from the data base to webform for displaying the bussiness growth of a customer.
SRS:Each customer can add 4 child under his name .My Table format is follow
Table Name:tbl_bussinessData
perentID:-store perant id
leftMiddle:store the iD of first child
left:=store the ID of Second
rightMiddle:=store the id of Third Child
right:=store the id of fourh child
from this structure of Database how i can build a tree upto 10 level or give some advice in DB desin or show some Example
NB:Not drawing or implimenting Binary DATA STRUCTURE
Is there a way to check/uncheck the checkbox in a tree node by just clicking on the treenode text. I tried something like this - I can check the right checkbox when I click on the node text but I am unable to uncheck it. Is there a way to do that.
I want to check for duplicate records,if the record is already inserted then "record has already been inserted" should appear or else if its a new record then it should be inserted.. This function is inserting even if it exists and showing the error msg..
Sub CheckForDuplicateRec() Dim da As SqlDataAdapter Dim ds As New DataSet Dim dt As New DataTable cmd = New SqlCommand("Select * from Table3 where Name='" & txtname.Text & "' AND FName='" & txtfathersname.Text & "' AND MName='" & txtmothername.Text & "' AND Add1='" & txtadd.Text & "' AND Add2='" & txtadd2.Text & "' AND Add3='" & txtadd3.Text & "' AND City='" & txtcity.Text & "' AND State='" & ddlstates.SelectedValue & "' AND Pincode=" & txtpincode.Text & "", con) da = New SqlDataAdapter(cmd) da.Fill(ds) dt = ds.Tables("Table3") If dt.Rows.Count = 0 Then cmd = New SqlCommand("Insert into Table3 (Name,FName,MName,Add1,Add2,Add3,City,State,PinCode) values('" & txtname.Text & "','" & txtfathersname.Text & "','" & txtmothername.Text & "','" & txtadd.Text & "','" & txtadd2.Text & "','" & txtadd3.Text & "','" & txtcity.Text & "','" & ddlstates.SelectedValue & "','" & txtpincode.Text & "')", con) cmd.ExecuteNonQuery() Else lblError.Text = "Records already exists" End If End Sub
When a user enters a value I want to check against the other values in the database before allowing the record to be inserted.
It is a nvarchar type column.
Is it best to use a unique constraint (if so, how) or what would be the way to programatically check to make sure this name does not exist. It is not a username, just a name value that will be used in routing.
I have two control page in my aspx page. first one left side "tree view",second one right side " form design".Form design will change based on tree view selected index changed.i have 4 level child node(site, master , slave, space). I have seperate forms to each level of node.
cannot update tree node when update the forms. so i reload tree view.
now i need how to auto selected index change to tree node.
ex.
1 parent node
1.1 child node
1.2 child node
i have update "1.2 child node" rename to "1.3 child node"
and reload treeview so it will chage...
how set tree node.selected index = 1.3 child node....
I have a detail view form consist of five fields my 1st field is jobnumber which is primary key i want to do that when user by mistake enter the duplicate jobnumber error occur that this is already used how can i do this ?
I have been googling this and have not come along a working solution for an entire day. I don't know anything about binary data types (as I've never knowingly used them) and I'm trying to write a binary value that I see in the registry, to the registry. Now, all I see is the following [shown below]... and if I try to pass that as a string to the RegSetValueEx in the WinAPI and of course it errors out... I do not know what 'numbers' I need to pass into the lpData As Any, argument of RegSetValueEx (i tried a bit array) in order for it to come out as the following [shown below] in the regedit. I really have no idea, and my tests to place random numbers in the bit array just produce corresponding random "figures" as visible in regedit that I do not understand how to 'tie' them together logically.
here is the culprit!
[Code]...
If I had the following in a string or a bit array, what must I populate the bitarray with so that the registry outputs this [above] when written? or, how can I figure out how to do it? I was hoping there'd be a function that reads my string of binary data and transforms it into the real binary format to submit to the RegSetValueEx function in VB6 or other function in VB.Net or C# (this really is a language agnostic question, and the problem exists in all languages; ie: same process).
I have a table "RANGES" with the following columns
LowRange as int HighRange as int with the data similar to below select * from Ranges LowRange HighRange 1 100 101 200 201 300 . . . 901 1000
And another table "infoDetails" with the following columns
Range as INT amount as money with the data similar to below select * from infoDetails Range Amount 23 34.00 235 44.00 345 34.00 678 100.00 555 100.00 530 100.00 510 100.00 I need one report with the following format without cursor. LowRange HighRange Count Amount 1 100 1 34.00 101 200 0 0.00 . . 501 600 3 300.00 601 700 1 100.00
The website is over half way done and the functionality for the blog is (except for adding posts) is already implemented and working correctlyI have a SQLExpress 2008 backendBlog posts are rendered on the page with full HTML markup within a label control.
All of the above is done and working. Though I am essentially new to creating websites with ASP.NET, CSS and SQL, I am sure that I could simply carry on and make a login page with some controls that would allow me to add records (blog posts) directly to the database on the host server. However, I am fearful of doing this because I know that malicious code can be passed in this way. Also, because of my lack of knowledge, the only way that I know of to pass the code from a control to the database is to disable validation for the page the control is on. Without a doubt I do not want to do that.
So what are my options for getting blog posts into the database? Is it safest for me to fully create the post in html and update a copy of the database that resides on my local machine? If I do it this way, how can I merge the records from the database on the local machine with the records on the remote server?
i have a question regarding grid view. i have done almost all work i needed. but one thing i want to do is i have set 4 of page size of grid. so when i show records on the web page i want to set a iframe after first two records then iframe and then two more records like i have shown in the example image. i have used LINQ with C#.how to do it. if you people want i can show you my code.
I have a datagrid control which is bound to a table which containing more than 1000 records. And i want to show only 25 records once a time. I have used paging in datagrid. But each time the next page index is set, query is fired again. This takes lots of time. So what is the easiest way to bound data in this case to improve performance.
im tryin to create repeater from code behaind using C#. The data bind is working good, im tryin to put some pager. the pager is half working. i can see the pager links at the bottom, i can see the the code split the records to 10 lines each page as i set it but when i click the next link the records stay the same it wont changing for the next 10 records. my code
i have 500 records to show in webpage. i am using DataList in that webpage. if i use direct binding it is slowing down the performance of the page and is taking time to load. now i have used update panel and i want to append data records by records(i want to append as first 50records and then next 50 records something like)
I have a detailsview with an update button one of the update fields is a checkbox which when is checked I want to automatically update a date field of when the checkbox was checked, am I going the right way with this code....... as I am getting a number of errors
Dim i As Integer For i = 0 To detailsview2.Rows.Count - 1 Step i + 1 Dim row As GridViewRow = GridView1.Rows(i) [code]....
i have a UP and DOWN buttons ouside a gridview and a checkbox inside the templated field .I will check the checkbox to sleect a row , after that if i click on UP button the checkbox above the selected checkbox should be selected.
same with when i click on DOWN button the checkbox below the selected checkbox should be selected.
