I have a datagridview created for my windows app in 2005 and I'm not sure how to get it to grow and shrink, depending on the number of rows that are displayed. The form contains several filters for the user to use in order to get their desired recordset displayed in the grid and therefore, the size of the grid will be constantly changing. How is this usually handled?
View 10 RepliesI am using the FormLayoutPanel for the first time and I am not able to figure out what is going on.On the form, I have a label that can grow and shrink because the content can change. The text includes the name of the client and that name can always be different lengths in regard to characters. I also have a grid on the form.
As you will see from the attached image, the form that has the FormLayoutPanel on it is showing small and not showing the content of the form. The form is indicated via the green arrow.In regard to the FormLayoutPanel, I have set it up in the following way:
Three rows, one column.The label is in the first cell, nothing in the second cell and the grid in the third cell.The TableLayoutPanel is anchored top, left, bottom, right.
Autosize = True
AutoSizeMode = GrowAndShrink
The Label in the first cell is anchored top, left, bottom, right TextAlignment = MiddleLeft
The grid in the third cell is anchored top, left, bottom, right and also Dock = Fill
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I have a Parent form and a child form. I have set the child form as sizable, autosize to true, autosizemode to Grow and Shrink and windowsstate at max. The child properly maximizes on when loaded but does not resize with the parent. Here is the initial code to load the child...
Dim nx2 As New SearchKeyWord
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I have a datagridview with checkboxes in the first column and I want to do a loop on saving the serialnumber(s) when the users decides to check a number of checkboxes Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
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the problem with this code is that it only inserts the serial number of the LAST checked checkbox and the number of entries of it depends on the number of checked checkbox for example ... if I checked the rows with the serialnumber 123 and 55652341, first the row with the serial number 123 then second 55652341, only 55652341 appears in the database and it is entered twice(twice because two checkboxes are checked)
Is it possible to number the rows in DataGridView ( does this property exist)?
When I load the data from the database to DataGridView I want to show thenumbers of row. like this
0
1
2
3
.
how would you select a row in a datagridview if the number of rows = 1
View 6 RepliesAnybody have tried having fixed number (painted) of rows on a datagridview regardless of the number of rows of the datasource??? i.e. datagridview will still show 20 rows even if the the datasource have 8 rows only? like gridlines already painted as is - with/without datasource binded.
View 12 RepliesI have a datagirdview which I need to process.. I have more than 50000 rows and 200 columns in it. DataGridView accepts columnindex and rowindex only in the form of integer. Is there any way in which I can use long instead of integer.
View 2 RepliesI have a UI that uses datagridviews / bindingsource / datatables of typed dataset for data entry. The dataset itself is serialized to a varbinary(max) in SQL. (i.e. no tableadapter, backend schema).I would like to limit the number of rows the user can enter into some of the grids (the data is used to fill PDF forms and I don't want them entering more rows than the forms can accomodate.).I have subclassed the datagridview, added a rowlimit property and tried to manipulate the AllUsertoAddRows property
Imports System.Windows.Forms
Public Class dgv
Inherits System.Windows.Forms.DataGridView[code]......
The behavior I see is that the messagebox comes up after leaving the max row even when the user is trying to leave the grid. I can lose the messagebox and deal with notification some other way but I thought someone else may have come up with something a little more sophisticated to handle simply causing attempting to add to many records to navigate out of the grid to the next UI control.
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."
View 2 RepliesIm trying to change the information on each row depending on the result from the query. Im thinking that at the minute my problem is that I'm only returning the first result from the query into the result.
e.g. query returns row 1 with '1232' row 2 '1243' but result is only ever set to '1232'
I need to write a method in C# to save all rows in a given datatable back to the database, but I cannot depend on the rowstate of each row. I can't think of how best to do this without extensive looping through the database table data or constant database querying.
I want to essentially perform the following insert / update for each row in the datatable, but more efficiently:
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when populating a data grid i keep getting a redundant row in the bottom. is there a way to lock grid rows to the number of rows in the data table?
View 1 RepliesI am currently using DevExpress 10.2 within Visual Studio 2010. In a previous question I was trying to print the current user view of a DevExpress GridControl with the user's choice of expanded or collapsed master rows and/or group sections. I was told this was not possible at this time. I have now decided to use the following code:
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I have read a text file into a textbox. The text looks like this (small snippet):
N08861 A1 P 0 A2 P 0 A3 P 0
N08862 P 0
N08870 P 0
N08900 P 00000001
What I want to do is to only display certain lines - this depends on the N number shown above.
E.G. I want the text box the display line N5000 upto N6000.
I'm trying to create a Software Sales calculator. My issue is not being able to have the lblPackageA3 to display the number as FormatCurrency after having the txtPackageA being multiplied by $99.Also need to figure out how to apply discounts depending on the number of sales IE 10-19 = 20% off
Private Sub btnCalculate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCalculate.Click
Dim sngPackageA As Single
Dim sngPackageB As Single
[code]....
I have a list of 100 assets that are pulled from AS400 and shown on a gridview alongside a dropdown box with 6 possible status and a textbox.
If the user selects a status other than "Found" (whether it's "Not Found", "Scrapped", "Sold", "Transferred","Other"), the user cannot leave the textbox empty. They must insert a comment into the textbox. Once the user is done he clicks "Save" and if, let's say, the status is "Sold" and the textbox is empty for all assets then a Message Box pops up saying "Please fill the textbox".
The problem is, the message box pops up 100 times (or once for every asset that has the error).
1) What can I do so that the message box only appears once even when 100 assets have the error?
2) Also, when the message box appears and I click "OK" the information the user had filled up to that point gets erased.
SAVE CLICK EVENT
Protected Sub Save_Click(ByVal sender As Object, ByVal e As EventArgs) Handles Grabar.Click
Dim comando As String = ""
[Code].....
I have a program where I want my picture box to change depending on what number comes up in a textbox. Lets just say, my picturebox is called PictureBox1. I'd imagine I'd use an IF statement followed by the path type in to change the picture. My question is how do I display a new picture in the picturebox? Whats the code used?
View 6 Replieshow do i count the number of rows that are affected when I updated a table, and display the number of affected rows in a message box ??
here is my code for updating the table ...
For Each row As DataGridViewRow In DataGridView1.Rows
req = row.Cells(Column1.Name).Value
If row.Cells("Column1").Value = True Then
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I am trying to design a report where one filed can be multiple lines and the other related field should be located below (See attached)
address may be 1 one or more lines, city state zip should be located just below.
I already have the field set to can grow, however the spacing is the issue. How do I make the spacing adjust at runtime depending on the number of lines in the field. I can space it to say 3 lines, but if the address filed is only 1 line it leaves a 3 line gap.
How would i delete only the successful inserted rows for insert and then move the non successful rows up and allow the user to correct the data and get it ready for an insert. If i dont delete the successful rows then i will have multiple inserts of the same dataRow and we dont want that! AND if i dont move the data up then it will have blank rows uptop and will end the try and not insert the corrected data. You can better see what logic i am trying to perform at the bottom of my code, right after I insert into the database. Here is my code.
Private Sub btnLaserGenerateTicket_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLaserGenerateTicket.Click
'Function declarations
[code]....
How would i delete only the successful inserted rows for insert and then move the non successful rows up and allow the user to correct the data and get it ready for an insert. If i dont delete the successful rows then i will have multiple inserts of the same dataRow and we dont want that! :) AND if i dont move the data up then it will have blank rows uptop and will end the try and not insert the corrected data. Here is my code.
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'Invoice Form
Dim daInvoice As New OleDbDataAdapter()
Dim dsInvoice As New DataSet()
Dim MyDataTable As DataTable
[code]...
Error...
Rows cannot be programmatically added to the DataGridView's rows collection when the control is data-bound.
how to add Rows programmatically to the DataGridView's rows collection when the control is data-bound? here is my code but i got error as "Rows cannot be programmatically added to the DataGridView's rows collection when the control is data-bound? "
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I try to make my datagridview rows change colour depending on value on a row cell. I ve tryed everything i found on the web but nothing..
View 3 RepliesI 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 have a problem with a SELECT statement.I have a table <EisagogiStoixeion> with 6 columns, one of then is < AgonPeriodos>. I want to display data in a datagridview depending on the column <AgonPeriodos>. I use the Select statement like this :
SELECT * from EisagogiStoixeion where AgonPeriodos = '" & textbox1.text &"'.
Value not set for one or more required parameters. This is my problem on the fill command.
If i don't use the where statement everything is ok and i can see the data including the data from the AgonPeriodos column.
Can anyone tell me why "Rows cannot be programmatically added to the DataGridView's rows collection when the control is data-bound." I keep getting an error "Invalid Operation Exception was Unhandled" error. All I am attempting to do is allow the user to select products from a list(or a second datagridview) and have it added to the datagridview so they do not have to type in every cell since the other cells are not visible because they do not purtain to their needs. Plus they will be able to save all items at the same time.
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It was even difficult coming up with a Question title for this.
Am not sure whether am using the right approach to my problem. See i have this datagridview that contains rows that i would like have saved back into the Database as new rows but with a column altered to a new value.
Eg
PKColumn1 FKColumn2
Column3 Column4
1 1
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What am looking at is Change FKColumn2 (some foreign key, maybe i can also have a combo box somewhere on the form and an "import to") values to something like 2 and save the rows back to the database without loosing the original rows.
I have several problems with rows in a DataGridView. Background information: The DataGridView (DataGridViewCalib) is in one TabPage of a TabControl, some columns of the DataGridView are automatically DataGridViewCheckBoxColumn as the DataSource have some colums which are Boolean. This is a Windows Form written in VB.Net with Visual Studio 2008. The user loads an input data file.
The problems:
1) At first arrival in the TabPage, ShowDataGridViewCalib (code below) is called. All rows are then shown in the DataGridView, despite the code saying that some rows should not be visible. Breakpoints in the code show that the code do arrive at the Rows.Visible = False events. Despite all rows beeing shown a Watch in the debugger shows that:
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There are two alternative ways of handling the rows in the code. The first attempt (commented away here) is probably the "nicest".