I have searched the forums for an answer to this problem and while I have found simalar issuses, I have not found a solution that works for me. I have created a dataset and populated it. I know that this is true because I can view the information in the dataset in other ways such as using labels or textboxes. However to display the data in a organized and usable way I would like to display the information in a DataGridView control. I DO NOT need to be able to modify or add anything to the datagridview, JUST view the information there. I am not using any wizards to complete this and so I need to be able to complete everything programmaticly. I have written the code involved to the best of my understanding. When I run the application, there are no crashes or errors thrown, I just can't get the datagridview to populate. Below is the code that I am currently using:
I've got a pretty big datagridview that I have to populate, and it's already (with not loads of data) taking quite a long time to populate. I can't imagine it's possible in my situation to bind the datagridview to the data I want to populate, but here is the situation.
I want the column headers along the top to be a bunch of users, which I have in one data table. I want the row headers along the side to be skill names, whihc I have in another data table, and the data in the middle is the score of each user for each skill in data table 3. Some users don't have a score, some do.
The way I have achieved this at present is to create the columns first using data table 1, then for each skill (data table 2), create an array of rows from data table 3 that match the skill, find the matching user (ColumnIndex) for each of these rows, and fill in the score.
Dim xmldoc As New XmlDataDocument() Dim xmlnode As XmlNodeList Dim i As Integer Dim namestr As String
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Lately iv been experimenting with XML and VB.net so far so good but not I tried to get it to work with a dataveiw and im confused becasue iv never used one before and wondering why it populates the wrong places like so...like those numbers are spose to go into the ID box and I am spose to get the names in the Name box but it isnt...?
so i started a program yesterday and after a whole day of tinkering with codes i have realised that something was wrong with my old program and i have started again.
I'm trying to display the population of a city, as soon as it has been chosen in the combobox.I put it on my formload, and it will always read the index of -1 since it hasnt had a chance to be chosen, how would I bypass this without a button being clicked?
If cboCities.SelectedIndex <> -1 Then lblCurrentPop.Text = "The current population is: " & CStr(intPopulation(9)) Else MessageBox.Show("You must select a city!")
Im trying to create a treeview with data from an access DB, the tables are structured and related as followsfor example - What i need to do is populate a treeview to look like this, remember all nodes will be have variable number of children (if any)
I have a winform that has one combobox. I want to populate that it with a list of folders in a directory. I thought this might be a common thing but I have not found any thing concerning this.For this example lets say the root folder is C:TestingFolder ListIn the folder "Folder List" directory there are 5 folders as such:
I have data codes in the format abcd123, abcd345,... present in the table Info of database.I want to drop abcd from code and display remaining code in a combobox of datagridview.
Code:
Dim dsCodeList As New DataSet Dim dtCodeList As New DataTable
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It is giving error at first statement inside for loop saying Column Code Does not belong to Table Info.If i write simple query without use of right function and use dtCodeList.Rows(i).Item("Code").substring() to ignore first 5 characters, it works well.
Create an application that will predict the approximate size of a population organisms. The user should select or enter the starting number of organisms in a combo box, enter the average daily population increase (as a percentage) in a text box and select or enter the number of days the organisms will be left to multiply in another combo box. For example, assume the user enters the following values:
Starting number of organisms: 2 Average daily increase: 30% Number of days to multiply 10
The application should display th following table of data.Day Approximate Population 1 2 2 2.6 (table should list values up to 10 days)
Be sure to add appropriate ToolTips for each control on the form.Input validation: Do not accept a number less than 2 for the starting size of the population. Do not accept a negative number for the average daily population increase. Do not accept a number less than 1 for the number of days the organisms will multiply.
1. when i pick a value from a combo in next col of data grid which also have a combo should populate conditionally.
2.when i edit the cell having combo previous selected value is overwritten by first value of combo it should be if i select any value from combo but should not over written default as i click the cell. (edit mode is on click)
3.by pressing enter key cursor should jump to next cell in same row . means navigation should horizontally but should jump to first cell of next row if cell is last cell
I am using the tutorial posted here for my database testing. I have gotten it to display the data using a messagebox but it just goes through them 1 by one. I want it to display all the data from the database in a table on my form.
Using connection As New SqlClient.SqlConnection("Server=71.200.87.112MySQLExpress; Database=database_test;User ID=sa;Password=greddy6;Trusted_Connection=False;")[cod
I have two datagridview's both are databound. First one shows items for sale and the second stores all the items that were sold. I am trying too transfer selected rows from one to the other but no matter what I keep getting told "Rows cannot be programmatically added to the DataGridView's rows collection when the control is data-bound."
I have a datagridview extracted from a csv file. It displays duplicate rows. How can I delete those duplicate rows from the datagridview? replies would be precious.
I've made an add button and I want it to add another row to the DGV and fill it with data from a database query.
Me.DataSet.App.Rows.Add() - this does add a new empty rowCode for filling the DGV with a query:Try Me.English_AppTableAdapter.FillBy1(Me.PunchDataSet.English_App) Catch ex As System.Exception
I used MSFlexGrid in VB6, now I've gone from little in VB10 and use Datagridview .... I want to read the contents of a single cell in a particular column and row selected with the mouse...
how to use bit fields (Boolean) in datagridview in visual basic 2010 how to know CheckBox checked state checked or not if CheckBox Checked State = Checked?
i have problem when addnew row at keyup event for datagridview control.i want to add one row when method addRow() called.this my code :
vb.net Public Class Form2 Dim dt As New DataTable("view") Private Sub Form2_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load dt.Columns.Add(New DataColumn("Col1"))
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the problem at dg_KeyUp code, Since more than 1 row created while I want only 1 line only.
I have a datagridview populated from 3 tables....It also has a checkbox column my question is how do I get the Serial Numbers of the SerialNumber column when the user decides to check multiple checkboxes..is it possible to save multiple data simultaneously?? For example, the user decides to requests 10 equipment ...
I've a DataTable that a would like to display in the DataGridView - the first should show all data of the DataTable - the second should display only a SubSet of the first
I've try building two DataBingSource, - The first without Filter Expression - The second with a Filter express like 'Weight < 100'
But when a enter a value in whatever grid that have a weight greater then 100, a row simply vanish from the grid.
In DGV, I have 2 checkbox columns. Column1 and Column 2. Once I checked a checkbox in a column and it happens that there is already a checked checkbox in the other column and they are in the same ROW. It will automatically disable/uncheck the Checked Checkbox.. Meaning only One CheckBox must be allowed to be marked if happens that they are in the same row.
I have a Windows Forms DataGrid currently filled with text.What I want to do is have a ComboBox appear in a cell when the user enters it.After the user has chosen their item from the ComboBox list I want the ComboBox to be removed leaving just their selection as text in the DataGrid, when they leave the cell.
I am having trouble with a comboboxcolumn in a datagridview. I have a MySQL table with "products" which i have managed to populate the combobox with, but i would like it so when a user picks a product from the combo list, the rest of the fields in that row are populated with the product information, price etc.
I have a DataGridViewComboBoxColumn in my DataGridView. I want to programatically drop down the list box so that the items arte displayed. With a normal combo box this is done with ComboBox1.DroppedDown = True. The problem is that the DataGridViewComboBoxColumn doesn't have the attribute DroppedDown.
