I've tried to find a solution to this, but can't seem to find anything that quite matches my goal here. The answers I've found are either C# or are wanting the data to go from the DGV to the DT.
I have a datatable, which is built out using an SQL query. In this data table, I have a column "Lab ID" that I want to use as a search index. On my front end, there is a requirement for the Lab ID to be supplied. When the Lab ID is entered, the data table should be searched, and the resulting row (entire row) should be added to the datagridview. Each scan should add a row and not overwrite. I have specified the DGV columns at form load but would like it to grab the column names from the table if possible.
Here is my current front end - noting that the left datagridview is only temporary to confirm the data is coming out of SQL and references the same datatable I am wanting to use for the right DGV. The user will pick the dates, enter the Lab ID, then click Check. If the Lab ID checks out, it should be added.
The other thing I'll need to able to do is compare the results in the data table with what is in that datagridview - if an item in the table is missing in the datagridview, I need to be able to retrieve the missing Lab IDs (don't need the whole row for this one) and add those missing Lab IDs to a messagebox.
I don't have any code at this point because I've not found anything that works, with the exception of this:
dgScanned.Rows.Add(GetResults.Rows)
Which results in the string 'System.Data.DataRowCollection' being added to the 'Request ID' column.
Related
I have a problem with SSRS report builder. Basically what I want to do is to delete a column. I have a report that someone else made and there is 1 column (xxx) that no longer exists in data source tables so I need to delete it.
When I go to query designer and delete this column from the code and run it there, it works. I close query designer window and see that list of columns (fields) is updated now and xxx column is not there. Then, I delete this column manually in designer (default screen) and when I try to run the report, It doesn't work:
"The Value expression for the text box ‘XXXDataField’ refers to the field ‘xxx’. Report item expressions can only refer to fields within the current dataset scope or, if inside an aggregate, the specified dataset scope. Letters in the names of fields must use the correct case."
But that field should be already deleted. So I don't know what else I can do, or what it can be linked to. I just want to delete it. Any Idea?
Thank you
If your dataset does not contain xxx but your DataTable has this error is normal
You either delete that column from your table or at lease delete DataSet Binding from table so that SSRS does not try to retrieve that column from DataSet
It will be a reference to the field in another field. For example, if you deleted a column that showed an OrderShipped status, then you might have another text box highlighted based on this.
The error is telling you which textbox is in error. So, click somewhere on the designer, then in the properties window, right at the top, click the dropdown which allows you to choose specific report items, choose XXXDataField (the one named in the error message) and then check the value expression. In there you will find the reference to the column you deleted.
I'm using a linked view in Access from the SQL server.
That view contains an employee_name column and many other columns (like equipment , parking, room, date etc). There is a row for each new entry (for example an employee got a new phone at a date and then at another date he got another phone), therefore there are multiple rows for the same employee name.
What I need to achieve is having all the entries in a form from an employee.
What I have tried so far is creating a form based on that view and adding a combobox with the option "find a record on my form based on the value I selected in my combo box active". The problem was that I was seeing users multiple times due to the new enteries mentioned above. I fixed this by doing a select distinct on the employee name in the row source tab.
But now I'm getting only the first entry for an user, what I want is to get all the enteries (maybe in auto-generated textboxes, or anything which will be easy to export to excel, since that would be my next step - to have a button which can generate a report based on the user with all the corresponding entries) like I would have written SQL code like below:
select * from schemaName.viewName
where employee_name = '/*here use the selected name in the combobox'
Thank you for your help, I am a complete beginner to forms in Access and all of these great things one can achieve.
I have 2 sheets in my Excel project:
In "Sheet1", I have a big data table, with 4 columns:
DataTable[Country], DataTable[Brand], DataTable[Parameter], DataTable[Calculated].
On "Sheet 2" I have a dashboard. I have there a table called FilteredTable that presents the data from DataTable. I have there a drop down command that lets the user select country, and the table is filtered accordingly.
I want that the FilteredTable will not only show data from the original DataTable, but to let the user to change the [Parameter] column. When changing it, I want that the [Calculated] column in both tables will be updated accordingly. If the user will change the country, then the FilteredTable will show the parameter that is stored in DataTable for that combination of [Country] and [Brand]. And if the user will get back to the first country, the displayed parameter will be the last one that the user entered.
I am a bit confused how to do it.
What I have done so far is:
1) to read into FilteredTable rows from DataFilter, using a formula array. I am mirroing this way [country],[brand] and [calculated]
2) in the DataTable[paramter], I read from FilteredTable[parameter] the same way, with a formula array.
It works fine, untill I change a country, and then the parameters in FilteredTable are already do not match the new country, and in DataTable, the parameters for the old country where changed to 0.
I'm in a logical loop. Is there a way out?
Thanks
Have you considered using 3 tables instead of 2? This would be: the original data table, a table which pulls in all values created through manual entry from the display table, and the display table itself.
In VBA, create a function which runs each time a formula is changed in the display table. That function should take the new data from the user, and copy the altered row onto the 'manual entry' table. For the display table itself, you could either recalculate manually through VBA every time a change is made, or have a formula which looks to see whether there is data in the manual table. If there is data in the manual table, that is where the value is pulled from. Otherwise, data is pulled from the original data table.
I have a table with a bunch of different fields. One is named period.
The period is not part of the raw data but I run a query when I import new data to the database that gives each record a period.
Now I need a delete query that will delete all the records that have the same period as what is selected in a combobox.
The values in the combobox come from a calendar table that contain all the possible values that could be in that period column at any time.
This is the basic query i thought would solve this issue but it tells me it is going to delete 0 rows every time I run it:
DELETE *
FROM PlanTemp
WHERE PlanTemp.period = Forms![Plan Form]!Combo163;
If you don't need the key field, just remove it.
Look at the "PROPERTIES" section and look at the column names.
Ether remove it there, or from your QUERY source.
You can also look at the Data section of the properties, and change your BOUND column, to Column 2... or whatever holds the data you want to use.
I am using DevExpress GridControl to display information from my database through a stored procedure (ie. SELECT * FROM aTable). Unfortunately when I run the program it doesn't display any of the information, columns, etc. It displays an empty table.
I know that there is information contained by the GridView though as I have print statements that return the row count. Specifically:
Console.WriteLine(GridView2.RowCount) ' returns the number of rows that should be displayed
Console.WriteLine(myTable.Rows.Count) ' returns the number of rows that should be displayed
What should I do so that the actual data within the table (DataTable) and the DataView is displayed to the user. I know the row count is correct as when I add/remove a record the row count correlates by incrementing/decrementing.
In addition I have this same problem in C# and in Visual Basic
Ok I have the solution and it is rather easy. Go into the design view and from there go into the designer for the GridView. In there go to Columns, under Main, and add each column that you want displayed from your select statement. For each put the name that the select statement had for each column under 'FieldName' and under 'Caption' you can rename the columns to what you prefer.