how can i create paging in a grid control let say i have 100 records in the database.. upon loading the data to the 1st 10 records of the query should be shown.. then button NEXT and PREVIOUS provides the navigation.if i press next display the next 10 records, previous will display the 10 previous records
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I have a paging control for my datalist. It works fine until I try to increment to page 3. For instance, I have 9 things in my datatable the datalist paging is set to page size of 3. We when I click the button it will increment 1 (to page 2) but it will not go to page 3.
Public Property CurrentPage() As Integer
Get
' look for current page in ViewState
Dim o As Object = Me.ViewState("_CurrentPage")
If o Is Nothing Then
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The implementation is pretty simple. I read the available images within the directory and call the following sub procedure.[code]...
View 1 RepliesI have a FlexGrid control in my Windows application that contains a row of data. The data in this row is related to even more data that won't all fit on the same row. For Example:The main data row contains Username, Last Name, First Name, Middle Name, E-mail Address, Phone Number, etcA secondary row to this might contain user permissions to certain resources, such as File Server Access, FTP Access, Remote Access, etc.Now, I can use the subtotal and outline capabilities of the VSFlexGrid to make a second row, but the column widths are still bound by those set for the main data row. Additionally, I can't put real "headers" on the supplemental data. I have to fake it by creating an additional row, setting the background color of that row to gray, putting the header strings into those fields, and then adding the next row with the actual details.
What I would like to do is create separate grids for these secondary rows and "embed" them in a blank row of the existing FlexGrid control directly under the related main data row. This would give me the ability to use a different number of columns, to format these columns independently of the "parent" FlexGrid settings, as well as put a new header row for the new grid that identifies its data.In other words, I'd like to somehow make a "child" grid that's related to a particular row of the "parent" grid (not the entire grid itself). I don't know if this is possible, and if there is another way for me to accomplish this goal, I'm all ears. However, if it IS possible, I'd love some advice on how to implement it.
i have used the following code to bind the data from an access database using datagrid in vb.net 2003. But when i execute, it is showing the error as " Object reference not set to an instance of an object". Can anybody guide me to find the error i have done.
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I'm getting a blank grid when I execute the cod e below, [code]...
View 5 RepliesI have a form allowing user to search details of employees. the form allows users to key in 7 search criteria. the results of this search open in a new window. employee details (data) are of following 3 types: personal details contact details additional details
I want to achieve the following with the results window the new window that opens to show the search results has a tab control with 3 tabs for displaying the results for each of the above categories. hence the three tabs would be personal details contact details additional details each tab would display the required data in a datagridview control. on adding the datagridview directly to the tabpages of the tabcontrol the window does not resize to the size of the datagridview that is displayed. i understand that the property AutoResize is not applicable to a tabcontrol or a tabpage, hence 1 added a panel to each of the tabpages and then added the datagridview to it.
However, even this does not help and the results window is still does not resize to the size of the datagrdiview. i have set the AutoScroll property of all the tabpages to, AutoResize of the datagridview and results window all to True. How to do this as the results widow does not rezise even to the size of the tabcontrol that i have added and the tabcontrol ends up with scroll bttons in the window.
I need to restrict the user to enter only integer value in a particular columns in a Data Grid View. How to do this?I tried with "KeyPress", "KeyDown" & "KeyUp" events. But not succeeded. But the same worked well in a text box. (http://msdn.microsoft.com/en-us/library/system.windows.forms.control.keypress.aspx)
How to do the same for a cell in data grid view?
I am a newbie to the .net developing world. i want to display a set of records on my asp.net page.
On a grid control (gridview, repeater etc), I want to display the list of sales people and the clients that they represent. This is how it needs to look on my asp page:
Employee ID: 123456
Name: John
Last Name: Smith
Email: johnsmith@abc.com
Phone: 201-123-4567
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How do you load a grid control with an XML file?, I tried the code below
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I am trying to update a databse using a grid control, I've enetered multiple rows in the row and tried to save the data, unfortunately I'm only saving the last row entered, is there a way to save all the rows entered using this approach?
Dim ConnectionString As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|aop29.mdb"
Dim objConnection As New OleDb.OleDbConnection(ConnectionString)
Dim sql As String = "Select * from Customer"
Dim daaop5 As New OleDb.OleDbDataAdapter(sql, objConnection)
Dim ds As New DataSet()
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I am trying to update a databse using a grid control, I've entered multiple rows in the row and tried to save the data, unfortunately I'm only saving the last row entered, is there a way to save all the rows entered using this approach?
Code:
Dim ConnectionString As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=/DataDirectory/aop29.mdb" Dim objConnection As New
[code]......
I have to design a custom "log grid" control to use in another of my projects.Up front, I am new to vb.net 2008. I have used VB6 for years and I am trying to learn how to resove the differences as I go. But I need help.
This log grid contains 96 columns and 4 rows.I tried using the TableLayoutPanel and a Panel per cell but found the control to slow to paint. That's 384 discreet controls.I am now trying a usercontrol with a panel and GDI+ to create the grid. I've created a collection for the columns and a collection for the rows. So far so good. My mouse clicks raise the correct events per cell.
I now need to indicate which column the mouse is over. This is the problem. The column must be highlighted by a vertical bar from the top of the column to the bottom. It must also be transparent. I need to see the gridlines under the highlight. I've tried using region using the following code. (myRegion is declared Private MyRegion as Region at module level for persistance)
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Is it possible to take the last row added to the grid and enlarge it for viewing? Then when another row is added it enlarges and the previous goes back to normal size. When I say enlarge, almost like a magnify effect. Am I making sense?
View 1 Repliesrecommend a spreadsheet control other than the OWC webcomponents with very simple functionality? I just need a 2x100 matrix and the ability for user input. I need this for VB.NET and I need it to be compatible with both 32bit and 64bit systems.
View 1 RepliesI wanted to create a module / tool similar to MS word where user should be able to add controls, resize controls, drag and drop controls.Anyway, I have got lot of references on how to resize control, drag and drop add control etc...my main requirement is i need a way to add grid and should be able to add cells to it. When i resize the grid control, the cell height & width should get extended and compressed accordingly. Also i need to save position of the controls to a text file.Saving positon of other controls is easy but most importantly i need to save each cell position of the grid.
View 2 Repliesi m using excess database to create my project..But i stuck when i wanted to render a combo box and a button in my data grid view...means i wan every data row have it owns delete button and etc.
View 1 RepliesThe ListView control has a property called GridLines .It's supposed that , once this property is set to True , the control will display its grid lines among its rows and columns . However , I can't do that ! I mean I changed the property to True but still no grid lines ! Of course the View property is set to Details so the grid lines should be activated , but I can't do it ...
View 9 RepliesI have created a user control. The user control has a button and a propertyGrid. I wrote a function to bind data to propertyGrid. When I click the button I called the function and datasource binded to propertyyGrid, its working fine. The same way am binding the grid from another class.vb, the datasource binding not throwing any exception. But the data not showing in the grid. Should I need to change any modifier.
View 1 RepliesI've been reading a few tutorials online and cant seem to get any of them working. Is there a way to add a image to a column in a grid? I want to be able to pass it a url like [URL]...
View 5 RepliesHow to create composite grid. ie , i need all the features of gridview in the Framework 3.5 and above,but also need to include some other functionality to that grid.please suggest me what to do . if possible please share sample code.
View 2 Repliesi am having sum textboxes and combos which have been populated accordingly. as in the attchment i enter the data in the textboxes/select values 4m combo and when click on save button all the related text is added to the datagridview's respective col. as desired. the problem is now that if suppose a user enters a wrong data and wants to edit/update the record already added the he will select the desired record from datagrid, double click and all the related data appears again on the combos and textboxes. the user then edits and click on save so that the selected record gets updated
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I am using VB 2008...
On my form I have a "Combobox1" that pulls a list from an access table. I also have a "DataGridView1" that pulls data from another access table.
I am trying to set the "DataSource" property of the "DataGridView1" after clicking a button, which pulls the "Text" property from the "ComboBox1".
ComboBox1.Text will always equal DataGridView1.DataSource as a text string.
I researched the Get/Set command, but it does not make sense to my specific application. I have read countless articles online for weeks, but I have now taken the next step.
I am student of MCS and i am working on my final project i face some problems regarding to show cubes data in grid control in vb.net around with dimensions
View 1 RepliesI have a usercontrol that contains a datagridview and a toolstrip. When creating a windows form that contains 2 of the mentioned usercontrol i gate for example c1 and c2 where both contains for sure the datagridview and the toolstrip hving the same control name for example G and t. in my case i want to apply the security on each form, i do this by reading the access of each control inside the windows form and if the control on the form was a user control then i dont consider it as one entity instead but as a grid alone and a toolstrip alone in order to be able to apply its security accordingly. but in ma case, if i want to disable the first grid and enable the 2nd i wont be able to do so since both grids have the same name. is there any solution for the above.
View 2 RepliesI'm looking to see if anyone has a sample app or has a link to such an app that uses data binding with a grid control and textboxes and is able to insert, change and delete from a datatable which gets updated to a sql server database.I have done an app that has the grid control and the textboxes already and is able to change and delete from the datatable and that action is reflected in the grid control because it has the datatable as the binding source.
The problem I'm having is when the user tries to insert into the datatable I get a concurrency violation error when using the .Update statement to save the changes to the database. This is happening because I don't know exactly how to get those inserts synchronised correcly.I'm sure I'm also doing the processing wrong but here is what I'm doing.When the user clicks an insert button I insert a new row into the datatable. The user now has the ability to enter text into the textboxes. When the user is finished doing that the user can click the save button which issues a .Update statement. That's where the error is displayed
winforms .net 3.5 Ultrawingrid 9.2 In my subclass of Ultrawingrid.Ultragrid :
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This works fine. But when the grid is dropped on a TabControl tabpage, the ctrl-tab looks very different to the sub above. e.keycode is seen as controlkey {17} I realize that by default cntrl-Tab moves between tabpages. I need to override this behavior. My thought is I probably need a subclass of the tabControl which will pass the keycombo through just as the form does but I confess to being clueless as to how to accomplish that. I tried to override the onkeydown of a tabcontrol subclass and just issuing a return and not and base call to onkeydown if the ctrl-tab combo was pressed but it seemed to see the e.keycode as controlkey as well.
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I am using a template field in a GridView. The template field is a dropdown list that is generated dynamically in the RowDataBound event.
How can I add a Javascript validation to each of those dropdown lists when they're created?
When using the Property Grid and exposing a color property from an object you get this kind of interface for color selection: There are tabs for System and Web, those are fine, but the Custom tab (shown) which seems to be a subset of the standard windows color picker, seems to be hobbled. How do you create custom colors? How do you get custom colors into those white color boxes provided?
View 1 RepliesMy problem is similar to the one described in this article, but I'm trying to use a different grid (DevExpress.xtraGrid) and therefore the answer (if it even works) does not apply for me: [URL]
Briefly, I'm binding the grid to the collection of custom objects - cMessage - to grid's datasource, but I don't want all the propertieties of the cMessage to be shown in the grid. Is there any way to hide some properties from the binding, while leaving them acessible from outside (ie.leave them as public or friend)?
