Counting Values In A Column?
Sep 9, 2009tell me how I count the number of times a specifc value appears in a column within a DataGridView?
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Counting Total Fail Values In Column
Nov 12, 2011I have put datagridview on form. I have add one column and 7 rows. Beginning four row contain value "PASS" respectively and last three rows contain value "Fail" respectively. I have to count total fail values in a column in CellEndEdit Event.
View 2 RepliesCounting Data In Sql Column?
Oct 16, 2009'search Male
Dim cmdTextName As String = "SELECT isnull(Count(Gender),0) as TotalMale FROM tblStudent WHERE (Gender = Male)"
Dim sqlcmdName As New SqlCommand(cmdTextName, New SqlConnection(GetConnection))
sqlcmdName.Connection.Open()
[code]....
Am trying to count the number of male in my table however when i try to run using this code it pops an error which is "invalid column name Male" what seems to be wrong with my statements?
Counting How Many Times Certain Number Appear In One Column
May 31, 2010I have an SQL database with a single table with several colunmns. I want to count how many times a certain number appears in one of the columns. E.g. I have the following:
A B C
8 4 6
0 9 3
1 4 6
4 7 1
I want to count the number of times 4 is used in column B. I have looked at using the following, but not sure if this is even the right approach:
Dim db as New MainTblDataSet
Dim BCount = Aggregate B In db.MainTbl Into Count(B.B = num)
where num=the number I am counting the instances of (4 in this case).
The hope is that BCount will equal 2, but it returns 0 every time.
Counting Number Of Days From Date Column?
Mar 8, 2010I have a datatable that stores information on employees. What i'm trying to do is use it to run a seniority list looping through the table using the current system date. The looping part i have no problem with, and the system date calculation also i know how to do. The problem call the date from the startDate column to do the calculation.
i have tried
dim sDate As date = "startdate"
but i get an error that it cannot be converted to date.
Counting Boolean Values In DataGridView
Dec 7, 2011In my DataGridView, I have several columns with check boxes that indicate whether the part has been bought or not. I want to add the summation of each column though to know how many of each parts have been bought by a single company. I have the count code working partially but I cannot get the correct number at all. Here is the code:
[Code]...
Calculate A Column Values Based On Other Column Values In Datagridview?
Jun 3, 2011am trying to calculate the values in rows in column 6 based on values of column 5. Bellow is the the code I am using I get a run time error about the string not formatted properly
[Code]...
Adding A Column And Values To It On The Basis Of Some Existing Colum Values?
Jan 4, 2011i have retrived this datatable from datasource and i want to add a more colum 'category'basedon the each value of each Role, like if role column has the value '90 daya client' then in the same row it should have a value 'DC' in the category column.n make a temporatry dt1 table but to add related values.
S.No First Name Last Name Role Date
1 Us er1Name User1Name 90 Day Client 11/01/2011
2 User1NameAtt1 User1NameAtt1 90 Day Client 11/01/2011
[code].....
Adding Column Values Of A Certain Column
May 28, 2010I want to add all the values of a certain column. I already get the value of an exact cell value but when i add the loop code for it to continue,it doesn't performs well.
[code...]
I,m using vb6 po with datagrid component.
Add Values To A Column In DGV?
Nov 30, 2011I have a datagridview, I am importing csv into it, I want to add a new column "Test Column" and populate that column with row numbers [code]...
View 3 RepliesGetting ALL Values From A Column?
Jun 10, 2011I am able to connect to my MySql Database.How can I list all of the values from a column.I would like to list all of my "Username" column's value.[CODE]....
What is the sql query for it? So far I only know SELECT and INSERT. And then listing all of the values to the Items in my ComboBox.
Add Column To Table With Values?
Oct 5, 2011I have a table called Table1 which already has a few other columns and 4 rows. I want to add three new columns to it. When the columns are added I want all the cells in the column to equal the variable I supply in the Add method. When I add the column named "BatchID" it works beautifully, but when I add "UserID" it gives an error "Cannot find column [iqz9]". Why? This is how Table1 should look like:
[code]...
Add Values In A Column Of A Datagridview?
Jun 2, 2011i want to dynamically add the values in the column of a datagridview the row of which is also being created dynamically...
Form1.TextBox10.Text = total
con.Open()
cmd = New SqlClient.SqlCommand("select product,Quantity,MRP,Sale_Rate,Disc_Amt,Amt from sale_table ", con)
[Code].....
Add Values That Are In A Datagrid Column?
Mar 17, 2010I have a database and a dataset as the image shows in the link, how would i add the values of the colums "amount1" and "amount2" for every row and entry as the user make entries to be automatically displayed in the "total" column. Meaning that every time values are entered in those amount columns, they will be added and the total displayed in the "Total" column.
[URL]
Change The Values Of Last Column?
Aug 10, 2010I have a GridView and by RowDataBound event I change the values of my last column. I want my last column to have as values the sum of each row.
Below is my code
If e.Row.RowType = DataControlRowType.DataRow Then
'total of row
Dim i As Integer
Dim total As Integer = 0
Dim dt As DataTable
[Code]....
Column Does Not Allow Null Values
Jul 30, 2009I have a databound DataGridView and use a button to control updates.
The problem is that if a db Column does not allow a null value an error is thrown ("Column <ID> does not allow null values") and then the datagridview automatically removes the row. This error is raised as soon as the user leaves the cell and before the update command is issued.
Get Distinct Values In Column 2 Of A DGV?
Aug 9, 2010I am trying to get distinct values in column 2 of a DGV using the following LINQ query:
Dim AllocatedRoomTypes = From r In Me.AllocatedDGV.Columns.Cast(Of DataGridViewCell)() Select r.ColumnIndex = 2 Distinct
but I get the following error:
Unable to cast object of type 'System.Windows.Forms.DataGridViewTextBoxColumn' to type 'System.Windows.Forms.DataGridViewCell'
I understand that the problems lies with the Cast, but I do not know how to correct it.
What I am trying to acheive is this:
Value is Column 2 of DGV
Double
Double
Single
Twin
[Code]....
Getting Column Values From All Rows In DGV Or DB
Jan 25, 2009I have a db with Column name Break. I have attached to my datagrid view and all that works and shows up correctly. However Im needing to put this code in a timer to get all the times in the Break Column but I need to get it from each and every row. For example:
Break
6:00am
7:00am
6:30am
I need it to look through each row and get that value. Ive tried various things, but Im not on my normal computer so I cant post my code.
SQL Parse Column Values?
Aug 13, 2009I have a a few checkboxes that I want to be checked based on a value of columns in a table.So I have a table that has a date column and I run a search based on a particular date. Then I want to be able to go through the rest of the columns based on the selected date. But I need to be able to check individual values. Not sure if this is making sense. It is for a checklist. I want to click on a date, and it will auto populate checkboxes based on what was pulled from the db.
View 9 RepliesC# - Find Rows With All Column With Values?
Sep 8, 2010I need to find rows in resultsets that have every column without null.these resultsets got variable number of columns.currently, the only way that I can think of is creating a view on each resultset and filter this way:
select field1, field2, field3, field4, ...
from "huge query"
where field1 is not null and
field2 is not null and
[code]....
and then in a storeproc/function or .net code(c# / vb.net) loop through all rows / columns and flag or remove every row that got any null?
Changing Values Of A Column In Datatable
Jan 20, 2012I want to loop through a databale and change the values of a specific column in that datatable.eg: the database returns Request_ID, Desc, Date and Status_Ind. The Status_Ind column contains integer values. I dont want to show the integer values to the user. I want to convert that to a string value based on the integer values returned in that columns.
View 2 RepliesCompute Values In A Datagrid Column?
Oct 12, 2011ei guys how to compute values in a datagrid column.. we have just tried some codes but it appers false anyway.. just need it badly.. i just have 30 min. :CCC
View 5 RepliesConditioning The Values In The Column Of Datagridview?
Mar 15, 2012i have a datagridview on my form with customers info which is linked to my database. i want to execute a line of code based on the information in one of the columns in the datagridview??? for example i have a datetime column which stores dates(and maybe time) i want to use an if statement(or any code) to compare the date the customer entered. if its today then my code will execute!!
View 4 RepliesEdit The Values In The Cells Of Column(1) Ie Qty?
Nov 11, 2010Dim cmd As New SqlCommand(SQLSTR, conn)
reader = cmd.ExecuteReader()
Dim myDataTable As New DataTable
[code]....
i hve the follwoing code by which i bind the data to the grid the grid has 4 columns PRODUCTNAME, QTY,RATE, AMOUNT the user shld be able to edit the data in the column qty for as many rows it has but i m not able to edit this column how do i edit the values in the cells of column(1) ie qty?
Enter Numeric Values Into 2-nd Column And To Have Sum Of Value in Last Row
Jan 17, 2010I have a datagridview with 2 columns.What i want is to enter numeric values into 2-nd column and to have the sum of this value in the last row (no matter how many values aka rows i will have). And also how can i have the last row fixed considering further actions.
View 10 RepliesEnter Numeric Values Into 2-nd Column And To Have The Sum Of This Value In The Last Row?
Jul 9, 2009I have a datagridview with 2 columns.What i want is to enter numeric values into 2-nd column and to have the sum of this value in the last row (no matter how many values aka rows i will have). And also how can i have the last row fixed considering further actions.
View 3 RepliesGet Distinct Values In A Column Of Datagridview?
Mar 9, 2011Like "SELECT DISTINCT(Col)" in sql query, how do we perform this in datagridview?[code]...
View 3 RepliesGet Values From A Column And Put Them In Another Part Of Program?
Nov 15, 2009I am working on a program where the user inputs values, then the program calculates those values and outputs the sum. When the user hits the button exit then those values entered by the user are saved. When the user starts the program again, the values are still there. I wrote the code and everything works fine. I am saving those values in notepad... and the program grabs the input in notepad and outputs those values to the program. But here comes the problem:
Lets say the user wants the information in a certain column to be added to another column somewhere in the program. Is that possible ? And if it is can it be done when I am saving those values in notepad ?
How To Pass Values To A Particular Column In Excel
Sep 6, 2011How to pass values to a particular column in Excel
View 8 RepliesHow To Sum Column Values And Put It In A Textbox Of Same Page
Jun 22, 2010I am using vb.net and WPF. In a wpf window im showing a datagrid in the load event while in the load event itself,i need to count grand total amount from a single datagrid column and add it to a textbox in same page. How do i do tat if iam counting from a ((Total Column )) DTG and adding it and showing it in my (( GRAND TOTAL AMOUNT)) TEXTBOX.
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