DataGridView, Set Up Columns, Populate Data Table, Bind, But Not Using Columns Created In Code?
Oct 26, 2011I'm using VB.net 2005. I have working programs that I populate DataGridViews with something like the following:
[Code]...
I'm using VB.net 2005. I have working programs that I populate DataGridViews with something like the following:
[Code]...
I have common sub to save data from data table to database like this ad.Update(tb) It works fine, but problem comes when i populate Datagridview using a joined query which takes values from more than six tables, for example
[Code]...
I want to select column 'F1' from an excel spreadsheet and dump the data into my datatable 'oleDT'. How do I map the column F1 to the column i've added called 'colTest' ? When i call Fill, the dataTable has 2 columns, which are 'colTest' full of nulls and a created column called F1.[code]...
View 1 RepliesImagine the following scene: I have one table which have tree columns (ID, Number, Name).
A Select query result on this:
code:
Now, the user deletes the Number 3 and 4. So, now the Select query is going to be:
code:
And I want to have:
code:
How can I organize the column?
I have a DataGridView and have the AutoGenerateColumns property set to false, but the when I build my project the columns are Auto Generated.
I can see the property set to false in the Designer.vb code for the Form.
I've had this problem before and I'm not sure how to fix it.
Am using VB.net 2005, and I've created columns for the datagridview at design time. But when I run the code the fill method of the DataAdapter, the columns I created are not filled with data, but automatically generated columns appear. How can the columns I created at design time be filled with data?
View 1 RepliesI've the following code which successfully makes an average for all the columns from a table. What I need to do though is ignore certain columns in this equation.
Dim totalNumber as Double = 0
Dim count as Integer = 0
For x = 0 To xyz123.Tables(0).Columns.Count - 1
[Code]....
Averaging columns in a table - ignoring certain columns
View 2 RepliesI have Dataset ds filled up with values Until now I was displaying values in GridView. Now I want that all the rows should be columns and columns should be rows.I have 2 options: Either 1 I can directly convert grid to columns and display it, or 2 I can convert the GridView to html and then write loops to convert. I was trying the 2nd option but I cant figure out how I should do that.[code]With this code I am still getting same as GridView. Please help me for converting rows to columns and vice versa.
View 1 RepliesI am using data grid view in Windows Form standalone application to display items as excel spread sheet in VB.NET. I got a table named CostTypes with column names [CostTypeID, CostType] and values [1,External] and [2,Internal] (These are constant but more values can be added to table).
I want to create columns with names of the values[External , Internal] in DataGridView. If I use databiding directly I get columns [CostTypeID,CostType] which is not what I am looking for.
I need to have multiple lines in a cell, so I use DataGridViewTextBoxColumn.DefaultCellStyle.WrapMode =DataGridViewTriState.True. I add columns (datagridviewtextboxcolumn) in designer. Then bound datagridview to a table which has exact the same columns as datagridview. Then I find that datagridview has duplicate columns: the first column is empty (which I guess is added through designer), the second column is filled with data from table. My question is how to correctly allow multi-lines and bound to a table at the same time?
In Designer
Friend WithEvents DGV As New System.Windows.Forms.DataGridView
Friend WithEvents columnClient As System.Windows.Forms.DataGridViewTextBoxColumn
Friend WithEvents columnAccount As System.Windows.Forms.DataGridViewTextBoxColumn
Me.DGV.Columns.AddRange(New System.Windows.Forms.DataGridViewColumn()
[Code].....
Basically the code below is supposed to load data from a reader into a datatable, then compare a date to the start date and end date in each row of the table.However, I am getting errors on the if statement indicating Overload resolution failed because no accessible '>=' can be called with these arguments.I can probably do this with just the reader but I am playing around with a data table because I know I will have to learn how to cycle through the records and look at them at some point and this is a simple example I can use to do this.[code]
View 2 Repliesi want to compare the two data table columns and find duplicates for example
dataTable1
autoid ponbr polinenbr quantity
1 0001 10 5
2 0002 12 6
[code]....
in the above two dataTable i would like to compare the ponbr and polinenbr column and find the duplicates and get the autoid..
I want to connect to Sage Data, to the stock table, and select certain columns such as SKU, title, description, sales price and then select the rows I want and send these to an excel spreadsheet formatted in the style required for upload as product feeds to google shopping, shopzilla, amazon and Ebay etc.Each feed is formatted differently and I have to create these manually all the time so I want to try and automate the process. We would have much better control of our ecommerce if I could do this quickly with custom program.
So far I have managed, after a lot of disappointments, to connect to the sage data through the sage ODBC and populate a datagridview. I've only got this far by luck, with many errors due to me and system and software problems. I thought this would be relatively easy as I once used an app to create a word document programmatically with a very thorough guide, it's not looking so easy now. I have also added a check box column to the datagridview for selecting rows and thats as far as I have got.I was thinking perhaps of passing the selected data to an array and then creating and populating the spreadsheet.how to get selected rows from DGV.
I am having trouble with a table adapter i am working on. In the table adaptor query i am having adaptor take a sum of the data that falls within a date range in a few columns. then i have some text boxes on my program refencing the columns that are being summed together. The program then gives me an error when i go to run the function.
View 16 Repliesi need to bind two fields to an existing columns. but i dont know what to add on my for loop and on how to bind it to an existing column. see my code below.
[Code]...
how can i insert data from data base with selected Datagridview columns i have insert combobox to Datagridview and it can load data from DB now i need insert data to another columns in Datagridview when i change combobox items?
View 7 RepliesI have created a Datagridview with 4 Columns, EJ: ID, Name, Quantity, other..But i want to fill these 3 Columns from MySQL EJ:[code]but this creates new columns and does not write to the existing, took a while looking for a solution but only find methods like this.
View 1 RepliesI need to get a table on my Form that has different columns from differen tables.As I call many tables by their Identity ID, I also need a way to show the information from that table.I created a query in my TableAdapter which selects information from 2 different tables. Tested it in the query builder and all was OK.I tried to put an empty DataGridView onto my Form and inserted the correct BindingSource for my Data Source.I then added a query and selected the query I created in my TableAdapter.
View 4 Replieseasy way to simply load the data from database into a datagridview with one of the columns being a comboboxcolumn. Apparently there is no selectedvalue, selectedindex or value as in a combobox to return the combobox value. What I need is to verify if the database value is 'true' and if it is then I need to set the comboboxcolumn with a specific value.
Ex:
if ds.tables(0).rows(0)("flag") = "true" then
datagridcolumn.selectedvalue = 1
else
datagridcolumn.selectedvalue = 0
end if
I can't seem to add data in my DatagridView by having set the Columns, this what my datagridView looks like:he combobox you see where filled by this
ReaderQuery("Select ChargType from ChargeType")
cmbCharge.Items.Clear()
While dr.Read
[code].....
[code].....
View 3 RepliesI have a variable defined as follows:Dim iRows As List(Of String())I've also been converting that to a list of lists just to make it easier to work with.Dim iRows As List(Of IList(Of String))I would like to bind that list to a GridView using the contents of the nested array/list to dynamically define the columns. I don't know ahead of time how many columns there will be, but I do know that they are all the same throughout the list.
View 2 RepliesI am trying to link two columns with dates and time to a new column, but the original columns are not in DateTime format. Here is sample of the data:
C_DATE C_TIME
231110
211152
[Code].....
In my application I read data (using data binding) from an Excel spreadsheet into a DataGridView. This works, but the data columns contain text fields (strings). I would like to set the data type for some columns to "Date" and Decimal. I cant do this on the DataGridView (error: cant change properties for data-bound stuff) and I cant figure out how to do it on the dataset or data-table that I bind to the DataGridView.The following is the code I use to read and bind the data:
Using con As OleDbConnection = New OleDbConnection(cs)
'
'open the OleDbConnection
[code]....
The commented out code (below the 'Todo: comment) causes a additional table, but I want to change the table with the data.
This is what i have for my set of columns:
[Code]...
2nd question. How can i bind other queries from different table to these columns. like Column[2]and Column[3] should come from a different query.
i've 3 listboxes...
- listbox1 (A, B, C)
- listbox2 (1/1/2000, 1/1/2001, 1/1/2002)
- listbox3 (1,1,1)
I want to populate a listview with 3 columns.
- column1 with items of listbox1...
- column2 with items of listbox2...
- column 3 with items of listbox3...
I am creating a project in VB.NET in which one of the reports require that the name of employees should be displayed as column names and whatever work they have done for a stated period should appear in rows below that particular column.Now as it is clear, the columns will have to be added at runtime. Am using an ODBC Data source to populate the grid. Also since a loop will have to be done to find out the work done by employees individually, so the number of rows under one column might be less or more than the rows in the next column.Is there a way to create an empty data table and then update its contents based on columns and not add data based on addition of new rows.
View 1 Replieson the form I use one combobox with Data Bound items, Data source, Display member & Value member. Besides this combobox I have textbox with multiline turned ON. My code should write values from specific table in Textbox when I sellect ID on the combobox. Actually this code works but not in a way I want Me.TextBox2.Text = ComboBox2.SelectedValue
I would like to populate texbox from other columns as well. For my app I need one texbox in which I can see five lines of data, Company name, Address line1 & Address line2 & Address line3 & Address line4 . It's important to get data from different columns and each column in a new line.
Bind multiple combo boxes to same data table with minimal code
View 19 Replies