Compare Between The Cell Value With The Value(parameter) In Database?
Sep 26, 2010
i want to compare between the cell value with the value(parameter)in database.
as example, if my cellvalue value is 3 and my paramater(a) in my database is 5 it will be like this if cellvalue<a then (some code)end if
the problem is i don't know the exact data type. the reason i need to use data type is because my data is dynamic.
here is my code:
Code:
protected SubGridView1_RowDataBound(ByVal Sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridView1.RowDataBound
con = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;
[Code]....
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May 28, 2011
I have an image column in a dgv. I set the value from My.Resources.XXX.How can I compare the value of the cells with an image in the resource? dgv.rows(0).cells(0).value=My.Resources.S_DEFECT don't seems to work. I tried it with object.equals, but no success.
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Sep 26, 2010
I want to compare between the cell value with the value (parameter) in database. As example, if my cellvalue value is 3 and my paramater(a) in my database is 5 it will be like this
if cellvalue<a then
(some code)
end if
I don't know the exact data type. The reason I need to use data type is because my data is dynamic.
Here is my
protected SubGridView1_RowDataBound(ByVal Sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridView1.RowDataBound
con = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;DataSource=C:UsersmeDocumentsVisual Studio 2005WebSitesCSGCSG1.mdb")
con.Open()
[Code] ......
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Sep 17, 2010
I have a program that is reading an Excel (xlsx) file and I am trying to take the data found in one of the cells and split it based upon the '@' symbol inside that cell. Here's an example: value in cell is "XXX @ YYY" I declare 3 strings (strOriginal, strA, strH) strOriginal is the value from the cell ("XXX @ YYY") then my code is supposed to split up the values in the Original string based upon that '@' symbol.So when my code is done, strA should = 'XXX' and strH should = 'YYY'.
Here is my code
strOriginal = dtbExcelData.Rows(0).Item(0).ToString
y = strOriginal.IndexOf("@")
strA = strOriginal.Substring(0, y - 1)
[code]....
For some unknown reason, the y integer (in this case, it is '4') changes to a random number (it has changed to 44, 61, 124) and causes the error "Error with Excel file: Index and length must refer to a location within the string. Parameter name: length" to occur.I understand why the error occurs (my y integer is not staying at 4)...I just don't understand why that y integer is changing numbers when it should remain as the indexof the '@' symbol. I'm looking for any suggestions on how to pull out the data after the space after the '@' symbol (the 'YYY' portion of 'XXX @ YYY'). Also sometimes the 'YYY' is only 'YY' as well.
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Oct 18, 2009
how can I create following thing with Visual basic?I would like my excel to check the date value in a cell and compare it to current date and if the value in the cell is older than 2 months compared to current date it would change the cell's colour.
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Sep 27, 2010
i want to create an system that can trigger alert which, the alert box will change to a red color depending on its value.
my problem is, the value that i used to compare is dynamic and based on what user key in in the paramater table while the data that will be display the alert is from the alert table.
lets say the value in the parameter table is been declare as Aand the value that display the alert is been declare as cellvalue.
this is the code that i have been tryingif cellvalue < A then' some code to change the box colorEnd if
but i kept failing. the system cannot read the A value.
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Apr 3, 2009
I'm a little brain dead at the moment and was wondering if someone could help me out with some code.I am pretty new to using databases in vb and what I want to do is to match a variable with a value in a database field and when it finds it, it will store the row count into another variable. I know I have to use a counting loop, I'm not sure how to compare the variable to the value in the database.[code]
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Jun 8, 2011
i want to create an system that can trigger alert which, the alert box will change to a red color depending on its value.my problem is, the value that i used to compare is dynamic and based on what user key in in the paramater table while the data that will be display the alert is from the alert table.
lets say the value in the parameter table is been declare as A and the value that display the alert is been declare as cellvalue. this is the code that i have been trying if cellvalue < A then some code to change the box color End if but i kept failing. the system cannot read the A value.
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Jun 16, 2010
I have a connection string set up and a data reader.I have two textboxes on my form for users to type in. One textbox (txtLogin) is a user name and the other textbox is a password (txtPwd). I'm trying to compare what a user types into those two boxes to a table in a vfp database. The table I'm trying to compare to is open about 99% of the time so I need to be able to read from it in some type of "shared" mode.
My Select statement needs to be something similar to "select * from sites where clogin = txtLogin.text and cpassword = txtPwd.text"I just don't know how to get this to work properly.
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Jan 18, 2010
I have a tblVersion that contains the versions of my application:
VersionID Version
VersionID is a bigint primary key, version is a ntext column that holds the current version... I want to be able to pick the row that has the highest version number, but version could be in this format:
MyApplication 1.0.1
If I try to convert that to a int32 it will throw an exception obviously. I would like to know if some of you have a idea how to solve this issue. I could of course make sure the column will only contain numeric values but this gives a little more flexibility.
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Jun 23, 2011
I m writing a Auto Sms Sending application which will work in the background. I m using VB2010 and Sql 2008 This application will check SMS table every 5 seconds to check new records if it finds a new record it will sent three sms at an interval of 6 hours.The problem is I don't know How to Extract Value of a 'Time' Column and Compare it with system time.i simply want to Compare value of 'Time' column and system Time if Time Deference >= 6 hours the application will sent SMS
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Jun 22, 2010
i need to get date from database table and compare it either it today or tomoe..after that need to compare time.I got table where the format is 'datetime' contains like = 4/11/2010 12:00:00AM'....so i need to get the date only...how to do that?...when get the date ...ithen i need to compare a time.
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Feb 22, 2012
how to create a comparison statement for a record that I have placed in a column of a SQL Database. In other words, I have a 2- forms, the first form is where the enduser places a few record requirements along with 4-digit number followed by the submission of a registration. After the registraions is submited, I have it coded to where the registration gets saved along with the 4-digit number into the database followed by a second form appearing. Ok, here comes the problem: When the user exits the applaication and then restarts the application again, the first form apears although it is not necessary since the enduser had already registered.
So, how do I or what kind of comparison statement can I create that will let visual basics or the first form know that the registration was completed and force the second form to appear instead or first?I would liked to makes some type of comparison with the 4-digit number thats in located in the SQL database.
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Dec 30, 2009
I created a typed dataset and my database guys are constantly updating and adding columns to tables.. is there a way to do a comparison
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Mar 23, 2010
I am quite new to programming and I want to be able to check whether the user logged on to the system is in a table or not. I am not quite sure how to iterate through a table.
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Mar 29, 2010
I need to parse a file name and compare to names in a data base. The file name has an underscore "_" as the delimiter. I need everything before the underscore.
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Nov 8, 2011
I am trying to figure something out. I have an application in which I am adding the ability to consume a feed. I have no problem with the feed itself, but my problem is how can I mark certain items as 'read'? The only thing I can thing of is to read the feed into a database. In this database, I add a column for 'read' which I update when the user has read the article. Then each time I retrieve the feed, I compare the feed to the database and only load new items into the database.
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Jun 25, 2011
how compare the selected item of the listbox with the database and dispaly data again in the textbox of front end
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Jun 18, 2009
I have to compare an item value in two tables. these two tables are on different database(same server).
I have succesfully generated sql query to return both table values.
the query runs in sql server without any problem and gives the results.
The same query i used in vb.net doesnt gives any result ...
It is resulting with no rows.
Does the connection to multiple databases wont work from vb.net.
The following classes are used to get the result ...
SqlConnection
SqlCommand
SqlDataAdapter
SqlDataAdapter is showing with no records returned. The same query returns the results in sql server query window...
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Nov 15, 2011
My query is i want to save record from an excel sheet to my Database Table.
But i dont want to insert the Excel sheet as a whole rather i want to insert the record in my database table Row wise.Inserting the records is not the only thing but my major issue is i want to check and compare the Primary Key column of my Table with the Column in my Excel.
Suppose Table1 is my Sql Database Table,and RegistrationNo is the Primary Key Column.Similarly there is also a column of Registration Number in my Excel Sheet.
Now before inserting each record the RegistrationNo column should be compared.If the a registrationNo in the excel sheet say RegistrationNo 112 is already present in the table then it should not Insert the record and if its not present then it should insert.
Also the other issue is the number of columns in my Database table are more than the number of columns in my excel Sheet.So the columns that are not present in the excel sheet should be set to NULL while inserting the record in the Table.
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Aug 16, 2009
i want to compare a column present in the access database BankAccount table with a field present in the form named as account......
[Code]...
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Dec 15, 2010
I am building VB.NET application that takes data from text files that are exported from a legacy DOS program. These are written to a datatable and displayed in a datagridview. Right now my code simply loops through the datagridview and inserts the data into the database (SQL Server). There is a requirement now that the client number must be checked before the insert to see if it exists in the database. If it does, then the value of one field (tax rate) is checked against the value of the field in the datagridview. If there is a difference, then the rate is to be updated in the database and the data that was in the database is to be written to a history table for audit purposes. If the client number is not there, then we are to do the insert (which is already written). I want to know what is the most elegant and efficient solution for this problem.
I need to compare what is in the database table with what is in the datagridview, update the history table for records that exist, and then insert new records.
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Mar 3, 2010
I have two textbox in my application.
Textbox1.Text="19-Jan-2010"
Textbox2.Text="Jan 2010"
May I know how can I compare that Textbox1 and Textbox2 text is within same month and same year?
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May 16, 2009
I am attempting to copy the value of the TimeStamp in cell A6 which has the NOW() formula into cell A5 Based on a change in Cell A4. The catch is I don't want it to update every time the sheet is recalculated due to updating links in other cells on the sheet. ONLY when Cell A4 Changes. What do I do?
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Jun 6, 2011
I'm trying to populate my textboxs with data from my database when the user name i
table
users (there is a textbox for each of these fields)
password
[code]....
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Nov 12, 2010
I tired the following Query to access my SQL Server database. It returns an error. SELECT Name, Address, PhoneNo FROM dbo.tblContacts where name=?
[Code]....
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Sep 27, 2011
I have been requested to implement a login form into a friend's Visual Basic .NET application. He specifically requested that I should do this using LINQ to compare the input to a table in an Access database. I don't really know why he imposed these restrictions, but who am I to judge? However, the problem is I am not overly familiar with VB .NET, or LINQ.
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Sep 19, 2011
I am using following code and trying to get data by given parameters. I donot know how to pass the parameter value to my query.
[Code]...
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Oct 1, 2010
I have a question on a datagrid object in vb.net 2008, that I what to be populated with certain values of a parameter from mssql database. The connection is made, the column header are loaded, but I what, when the form is loaded, to populate the datagrid only with certain values, doing a select commnad where id has a value given by me.What is the command to have this select done and display the values in the datagrid?
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Apr 24, 2011
im having problems trying to work out the code i need to add to a value i already have in a cell in my database, for example if the cell contains the value 3, and input 10 to my textbox, then i want the cell to contain the value 13. at present what i input to the textbox only inputs that value rather than updating it. i would be appreciate any help as i'm a student and i'm new to using VB with databases!!
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
accCom.Connection = accConn
[Code]....
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