I have a datagridview, and I want to get an array of rows, or rows indexes in which boolean column "Aktywny" is set to True.Obviously I can Do it using loop, but LINQ will be much faster for sure...
After Filling a DataTable in GridView's DataSource . A column with check box Type appears but it created as read only column and I can't enable it or make it editable... even i tried .readonly = false and still can't be edited
I fill a DataGridView with the result of a database query. I have a boolean field named Gender. I want to show "Masc"if it value is True or "Fem" if it's False.
I can't assign a string value to a bool type cell. How can I do this?
PS: I've seen a C# example, but I can't understand how to do this in VB.
Is there a way to make a DataGridView's column a combo ONLY in the "new row", and a read only textbox in all other rows? I want the user to be able to make a selection from the combo box, and when the row is finished and the "new row" moves down one, I want the column to become a textbox containing the what the user selected. My grid will be bound to a table witch contains a "category" column, that is drawn from a seccond table that i want the combo box bound to.
i have a datagridview with three columns. i set the first column to visible=false, so the user can only see two columns.when the user presses the tab key in the first visible column -- column(1), i want to ignore column(2) so that the user only tabs through the rows in column(1)i can't get it to work. it will always tabs through the rows in column(2) even if i use the column name.
I have 2 DatagridViewChecKboxColumn. What I want to happen is that a (Submit)button will be disabled until the checkbox2 will be checked. How will I do this if my checkboxes are DataGridViewCheckboxColumn? What loop will I do,because there's a possibility that I'll be checking the last checkbox?
CheckboxColumn1 is "Parent" and CheckboxColumn2 is "Child", they are related to each other. It's a requirement that the Parent has to have at least 1 Child meaning it can be One(P) is to ManyŠ or One(P) is to OneŠ. If the user didn't meet the said requirement, the system should not allow him to insert the selected records to the database. That's why I've decided to Disable the button unless the user checked the two checkboxcolumn. Meaning if the user only checked the checkbox/es in the Child column, the button will remain disabled, same concept with the Parent checkboxcolumn. The button that I'm talking about is what I call "Consolidate Button".
I tried this:
Private Function HasParentAndChild() As Boolean Dim result As Boolean = False Dim hasParentCode As Boolean = False
[code]....
I tried this, but still not working. It does disable the button but in random clicks/checks meaning after 3 clicks in anycheckboxes the button will be disabled and be enabled again after how many clicks. Dont know what the problem is. Tried to debug but I dont get it.
I am having trouble in allowing the user to select the row in the datagridview.
I managed to include the checkbox column in the datagridview but i do not know how to wrte the code such that when the user wants to update or edit the data in the checked row, he just have to check the affected rows checkbox, can be one or many, and then click on ok button, which will then lead him to the data updater form, allowing him to update the data.
Currently i have the below code which can populate the checkboxclumn only.
I'm using DGV to display data. I also have a DFVCheckboxColumn. If user checks a checkbox column the data from that row is transfered to database. i'm able to select multiple columns with pressing the CTRL key.But i wanna select multiple rows without pressing CTRL key. Can someone give me samplecode or guide me in this
But this code will add columns to every rows in the gridview. How can I change the code so that it only add the column to row one instead of every row?
i have datagridview with rows in it and one of the col show type of product. there are row with same type. on click of button i want to select all the row where productype = 1 (for example)
do i have to go thru each row in grid and check the condition for product type and then select it or there is another quick method.
I want the user only to be able to select rows and not individual cells in a VB.NET DataGridView. Is there a way to make this happen? I don't see an option for the DataGridView object to control this via properties.
Is it possible to add a button column to a datagridview and then remove a select group of these from rows without removing the rows themselves? That is, I want the ability to hide or remove these buttons in certain rows after certain actions have occured. I realized that I could simply delete the rows with these buttons, but I want to keep the data in these rows visible without the user thinking they have to use the buttons. I am assuming that I can also disable the buton in the desired rows as well.
I need to select multiple random rows in DatagridView with keypress.Ex:
Row1 -selected Row2 -not selected Row3 - selected
I do have part of code that will update certain field in database on keypress, but i have no idea how to create multiple selection and display it on DataGrid.CTRL+Click is nice, but I would like to have option of selecting rows with keypress.In following code I am checking if certain field is marked for selection(i want to give user an option to start selection, exit program then continue selection later) but it allways select all rows in table (even if only one is marked).
Dim NumRow As Integer NumRow = 0 Do Until NumRow = dbtShow.RowCount - 1
[code]....
My question is: What is the best way to select multiple random rows in code?
I has a datagridview and now I would like to determine that whether column1 in row 1 is selected by the user.What should I write to do so?
Private Sub DataGridView1_CellContentClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.CellContentClick
I want to select a datagridview row according to its column value (i.e. user id) when I click on that row (with sql command).
I had following coding: If chkboxMvOut.Checked Then Dim oledbCMD As OleDbCommand = New OleDbCommand oledbCMD = New OleDbCommand("UPDATE qmaint.ots_output set Timeend = '" & CStr(time2) & "' + Remark='" & txtRemark2.Text & "' + Cstate = 'Move Out' where user_ID ='" & lngUserid & "'", myConn) oledbCMD.ExecuteScalar() End If
I had a DataGridView in which i want to fetch the data from the access database,so i did this
Dim connString As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=Etech.mdb" Dim myConnection As OleDbConnection = New OleDbConnection myConnection.ConnectionString = connString
[Code]...
In the above snapshot,after fetching the data from the access database to the DataGridView,i want to remove the PplicyHolderName,PremiumAmount and a few other columns since these are the columns which do not contain any data....
I have a Infragistics ultragrid with a checkbox column (no binding on the checkbox column) need the user to only have one check box selected at a time. If a checkbox is checked and the user checks another row I need the first checkbox to uncheck. I am new to infragistic controls, so I apologize if this is a simple property that I have not found. But I have searched the forum and KB to no avail. Do I have to rip through the rows and uncheck all rows but the active one?
I have a DataGridView with SelectionMode = "CellSelect". I do this because I want the user to be able to click the Column Header and drag the column to a different DisplayIndex. They move the column by clicking and holding down the left mouse button, then moving the column. I also want the user to be able to click the column header and all the cells in the column would be selected. But if I change the SelectionMode property to "FullColumnSelect" or "ColumnHeaderSelect" the user can no longer move the column.In the code below, I can select all the cells in the DataGridView just fine, but I can't select all cells in a particular Column or Row. [code]...