When the page loads, the GridView (located in an update panel) should be loaded with my first SQL SELECT statement. On the button click, the same GridView will be loaded with new data. On startup, the GridView doesn't appear.
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I can't figure this out. I have a bitmap that will be used throughout an application, so I can't declare it with a Dim statement in a procedure, or it isn't recognized as having been declared in other procedures. So I declared it at the top of the form class, two ways. This one works: Private MyBitmap As New Bitmap(622, 461) It makes a bitmap to the exact size of a picturebox I have. But I want to be able to change the size of the picturebox and not have to worry about going back into this declaration to set things up, every time I decide to change the box's dimensions. So I tried this next version, but it doesn't work:
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I am relativity new to asp.net programming, so this one has me stumped. I manually created a dataset and set its value to the Datasource of the GridView control and then call the Databind method, but it isn't refreshing. I recreated a simple version of what I am doing so someone can advise me what I am doing wrong. I didn't include the Master file, as I didn't see it as pertainent.[code]...
View 2 RepliesMy problem is that when i try to insert a GridView in ASP.NET webpage it doesn't appear in the Browser.
View 1 RepliesI have a GridView which you can click on a row and it should call the SelectedIndexChanged method (which updates another part of the page based on which row was selected). I have done something similar to this before and it worked, but I can't seem to get the SelectedIndexChanged part to be called for some reason.The page is held in a master page which has a form runat="server" tag, and an <asp:ScriptManager> tagI am using e.Row. Attributes.Add("onclick", ClientScript.GetPostBackClientHyperlink(Me.gridMessages, "Select$" & e.Row.RowIndex)) to allow the SelectedIndexChanged to fire by clicking anywhere on the row.To check that the code does work apart from that, I added a CommandField with a SelectButton and that successfully fires, but i would prefer to find a solution without having to use that.[code]
View 1 RepliesI have a GridView with a Checkbox on the first column: Code: The thing is that the Checkbox.Checked always returns False. How can I get the checked state of the Checkboxes in this scenario? Or what would be the best approach into updating the aforementioned column? P.S. Note that click on the checkboxes doesn't post back. Nothing happens on the page until the user clicks Save (and that is the intended behavior).
View 2 RepliesI have a gridview that is set to a sql datasource, it is generating the columns automatically. If I add a column to the table it is referencing, it will draw that column and display it, but it does not update the insert/update commands to include the new column. Is there any way have it rebuild those commands automatically?
View 1 RepliesHow can I change my selecommand, and keep it through the remainder of the page (when using pagination, sorting)?I have a page of checkboxes:
<input type="checkbox" name="checkbox_1" />
<input type="checkbox" name="checkbox_2" />
<input type="checkbox" name="checkbox_3" />
<asp:Button runat="server" Id="CustomButton" text="Create Report" PostBackUrl="report.aspx?"/>
Then on report.aspx I want to generate a standard listview based on the selections in the checkbox.
<asp:ListView runat="server" ID="ReportListView" DataSourceID="ReportListViewSDS">
<LayoutTemplate runat="server">
...<asp:PlaceHolder runat="server" ID="itemPlaceHolder" />...
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Will the changes i make to the sql command in the PreRender function hold when I have applied pagination or sorting to the listview?
So making a .Net site w/ VB + running off a MySQL server.
Trying to use a variable within the connectionstring to only retrieve certain data.[code]...
I have set a global variable in a module, which I then set the value in form1.I then wish to use this in form 2 in a Select Command for a dataadapter, it however says the variable is not declared although if I call it in a MsgBox on loading form2 it tells me the variable.
My code for the select is:
Me.OleDbSelectCommand1.CommandText = "SELECT Amount, [Record Number] FROM [" & _
"Test] WHERE ([Record Number] = ?)"
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I am trying to pass a variable to a SelectCommand in SqlDataSource. I have this MyIdVal that need to be passed.
Here is the code :
<form id="form1" runat="server">
<div>
<%=MyIdVal%>
</div>
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I have a vb.net application that I want to dynamically create a search criteria using a SQLDataSource. I was trying to dynamically generate a select statement with parameters, assign that string to the selectCommand for the SQLDataSource then selectively assign the parameters.
The issue is several fields (user id) (user name) (email addr)... that I wanted to allow the user to enter any number of these and construct the select given what they entered.
That works if I just construct the string. But I want to use parameters for some sql injection protection as that page will be viewable on the internet.
What happens is I assign the select command but the SqlDataSource does not pick up that there are now some parameters that were not there before.
as in.
Dim firstName As String = tbFirstName.Text
Dim userName As String = tbUserName.Text
Dim userIdFlag As Boolean = False
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I am using a Microsoft Access Database and I cannot get the Update to work. I assigned a Primary Key in the Access table, but I still receive the error: "Dynamic SQL generation for the UpdateCommand is not supported against a SelectCommand that does not return any key column information"
Here is the
Try
strSQL = "SELECT * FROM Item ORDER By Item.Job"
With oCmd
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dynamic sql generation for the updatecommand is not supported against a selectcommand
View 9 RepliesI have the following code for a web page that I'm working on:
Imports System.Data.SqlClient
Imports System.Data
Partial Class _Default
Inherits System.Web.UI.Page
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when the buttonclick event fires I receive the following error:
Error:System.InvalidOperationException: Fill: SelectCommand.Connection property has not been initialized. at System.Data.Common.DbDataAdapter.GetConnection3(DbDataAdapter adapter, IDbCommand command, String method) at
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I am using MsAccess DB and Vb.NET 2008. This is a code to check the Database for duplicate entries but m geting an Error." Fill: SelectCommand.Connection property has not been initialized."
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1) My login screen is talks to a database and is supposed to verify the users credentials - instead i get this error and i dont know what to do next pleae help.. This error occurs on the line that says adaptor.fill(dataset, "0") ------Fill:selectcommand.connection property has not been initialized
Private
Sub
OK_Click(ByVal
sender As
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I am doing a project for a course that involves a database, i have it set up already so that i can have two different labels displaying data from two different fields in a table when the form loads, but i am trying to get it so that when i click an option in a listbox it will change the displayed information. I am using the following code to set it when the form loads:[code]
View 2 RepliesI have some Tables in an Access DataBase with the same structure and different names. I wish to use one only form (Page) to view data. I must change the name of the Table contained in the SelectCommand but Im not able to do so.
<asp:AccessDataSource ID="AccessQuadent" runat="server" DataFile="~/App_Data/QuaAdmin.mdb">
SelectCommand="SELECT * FROM [QuaGen] ORDER BY [FileDate]desc">
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i need to update my data using stored procedure here is my code :Try
con = getconnect()
con.Open()
sqlcmd = con.CreateCommand
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As part of the application I'm writing in Visual Basic, I have written code to display records in text boxes and cycle through each of them one record at a time. I'm having trouble getting the code I've written to update records to work however.
VB
Public Class frmRecords
' VARIABLES TO AID NAVIGATION THROUGH RECORDS
Dim moverow As Integer
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At the present time I get an error that says "The DataAdapter.SelectCommand property needs to be initialized"
Im just getting user to passing in varibles to SQL i have the below connection string and its throwing an error saying "The SelectCommand Property has not been initialized before calling 'Fill'
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i am using data grid and i want to update it when user change i but the fallowing command in button to save update but it did not work and it give error massage
Dim builder As OleDbCommandBuilder = New OleDbCommandBuilder(DataAdapter1)
Dim CmdB As New OleDb.OleDbCommandBuilder(DataAdapter1)
DataAdapter1.Update(DataSet1, "Section")
the error messge (Dynamic SQL generation for the UpdateCommand is not supported against a SelectCommand that does not return any key column information.)
I have a table Personal.. and bind it in dataset.. i want to update the fname using datatable.. but it is not working ..throwing the error "Dynamic SQL generation for the UpdateCommand is not supported against a SelectCommand that does not return any key column information."See my source code
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I have this code that I have found on the net and I run but there is error that says "Dynamic SQL generation for the UpdateCommand is not supported against a SelectCommand that does not return any key column information.". May I know what is the problem?
Here is the code that I get from the net:
CODE:
i have built a DB app using vs2010Beta2 + an Access DB .mdb file for my customers the save bnt work s ok, but when i close the app i get an error message come up saying :- Dynamic SQL generation for the UpdateCommand is not supported against a SelectCommand that dose not return any key column information.i have no errors repoted in the error window at the bottom and all runs well untill frm_closing,below is the code in my form closing event. below that is the code for the btnSave event
Private Sub frmMainCustomerDetails_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing
If MyState = "Edit" Or MyState = "Add" Then
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im new to vb.net 2003 but have used vb 6 for years and dabbled with 2005. A program that would usually take me a few hours to make i am on day 5, 4 and a half of which have been trying different ways to get it to update, and not one of them will post the information back to the SQL 2000 database I am actually going insaine.
The best i can get out of it is this error. "Dynamic SQL generation for the UpdateCommand is not supported against a SelectCommand that does not return any key column information" I have googled it and come up with the fact the primary key isnt set right, but i still cant get that to work. Here is the peices of code that are relevant.
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When this code segment execute
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Me.Validate()
Me.myDA.Update(Me.myDataSet.Tables("Table1"))
Me.myDataSet.AcceptChanges()
End Sub
It giving the following error. Dynamic SQL generation for the UpdateCommand is not supported against a SelectCommand that does not return any key column information. Can there is another way to update the access database by using datagrid view.
I am trying to change the background color of a tooltip
I am using tooltip.backgroundcolor = color.colr
No errors but thecolor doesn't change
I use Visual Studio 2003, VB.net, NetFramework 1.4 and Windows XP I have been using the following Code Snippet for a number of years in both Web Services and Windows Applications. However suddenly around the 29th September 2010 it has stopped sending E-Mails from both Web Services and Windows Applications. The same problem has happened not only to my own Network but on two other Networks, one using XP as its Server and the other using Server 2003. All 3 of these are using different ISPs.
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