VS 2008 - Error With Adding Parameters To SQLDatasource Control
Aug 19, 2011
I use the sqldatasource control a lot with stored procedures. But this time I'm using some code I found online where I am defining the new sqldatasource in the code and using it. You can see this below. I am getting a NullReferenceException on the first SelectParameters line and not sure why. Do I need to add the parameters different?
Code:
Dim SqlDataSource As New System.Web.UI.WebControls.SqlDataSource()
SqlDataSource.ConnectionString = ConnectionString
SqlDataSource.SelectCommand = "MySprocName"
SqlDataSource.SelectCommandType = SqlDataSourceCommandType.StoredProcedure
SqlDataSource.SelectParameters("Distance").DefaultValue = 25
SqlDataSource.SelectParameters("ZipCode").DefaultValue = "31410"
Dim arg As New DataSourceSelectArguments()
Dim dv As System.Data.DataView = DirectCast(SqlDataSource.[Select](arg), System.Data.DataView)
View 2 Replies
Similar Messages:
Apr 1, 2011
I have a page called Page2.aspx and it is called by another page called Page1.aspx and Page1.aspx passes two parameters namely: Name and Category to Page2.aspx. Does anyone know why the following code from Page2.aspx is not working and it keeps giving an error message as follows: " You have declare the parameter @Username".
string Cat1;
string Name1;
[Code]....
View 2 Replies
Oct 2, 2010
I typically don't use the sqldatasource control but trying it out and can't seem to get the delete function working. It doesn't seem to be passing a parameter to my stored procedure. The error I get is: Procedure or function 'sp_DeleteCraigsListEntry' expects parameter '@craigslist_search_id', which was not supplied. Any thoughts?
Code:
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
DataSourceID="ds1" CellPadding="4" DataKeyNames="craigslist_search_id"
ForeColor="#333333" GridLines="None" >
<RowStyle BackColor="#EFF3FB" />
<Columns>
<asp:CommandField DeleteText="x" ShowDeleteButton="True" />
<asp:BoundField DataField="craigslist_search_id" HeaderText="ID"
InsertVisible="False" ReadOnly="True" SortExpression="craigslist_search_id" />
<asp:BoundField DataField="craigslist_search_value" HeaderText="Search Value"
SortExpression="craigslist_search_value" />
<asp:BoundField DataField="craigslist_Search_entry_dt" HeaderText="Entry Dt"
SortExpression="craigslist_Search_entry_dt" />
</Columns>
<FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Center" />
<SelectedRowStyle BackColor="#D1DDF1" Font-Bold="True" ForeColor="#333333" />
<HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />............
View 1 Replies
May 21, 2010
My ASP.Net 3.5 book just came in and I started reading the chapter on ADO.Net.
In the first portion of the chapter, it kind of hinted that writing code to access data was the old way (ie Creating a connection, command and datareader object and programmically binding the reader/dataset to a control).
It says that you should use one of the Data Source Controls, such as the SqlDataSource Control.
Is it best practice to start using Datasource Control like the the SqlDataSource Control or are these mainly for 'RAD'?
I'm putting the finishing touches on decent size ASP.Net application, I coded the Data Access Layer and I am wondering if I should have used the Data Source Controls but I always associated them with Rapid Application Development.
View 13 Replies
May 6, 2010
I have a sqldatasource control that I want to get the field values from as it is selecting. Is there any way to do this in the dsControl_Selecting event for each record without binding it to any control or formview? I would like to call dsControl.DataBind and retrieve the field values.
View 4 Replies
Jul 2, 2010
When I drag and drop an SQLDataSource control to my new web page it disappears after I set it up.
It exists in Source but I can't see it in Design. I'm doing the same thing I would do in VS 2005 and I can see the control in design view.
Why can't I see the control? I'm new to VS 2008 and .Net 3.5.
View 2 Replies
Dec 19, 2010
I have created a asp.net webpage for viewing daily downloaded newspaper, saved as a pdf file in a selected folder (~/NEWS/{0}) within the web root directory. Also i have a SQL datasource linked, where the news table has two columns viz: date and filename.
I want to create a tiled listview where the date text is visible on the hyperlink. on clicking the hyperlink, the file name is retreived for the corresponding date and the pdf file opens in a fresh page.
I have tried going to the item template in listview and replacing the label control with a hyperlink control, but then not able to successfully proceed ahead.
View 6 Replies
Mar 17, 2010
I keep recieving this error when trying to add the toolkit to my application: "There was an error loading types from assembly v:my intranet etProjectinAjaxControlToolkit.dll Request for the permission of type System.Web.AspNetHostingPermission, System, Version=2.0.0.0,culture=neutral,PublicKeyToken=b77a5c561934e089 failed"
This has only recently started happening.. There are already AJAX controls on the page which still work but I want to add new ones with the new toolkit but for some reason cannot add the toolkit anymore. If I copy the toolkit to the local C: drive of my PC and add them I can , but when I then copy my page back to the server, none of the controls are working.
View 3 Replies
Jan 19, 2010
I have an existing page. I drag a text box control from the tool box onto the page. When I execute the application I get error (this happens to other additional controls as well):
<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
At this point I do not have any errors.
Now when I reference the control in the code behind, it gives me error when I execute the application.
If TextBox2.Text = "" Then
mySqlCommand.Parameters.Add(New Data.SqlClient.SqlParameter("@GroupName", Data.SqlDbType.VarChar, 50)).Value = DBNull.Value
Else
mySqlCommand.Parameters.Add(New Data.SqlClient.SqlParameter("@GroupName", Data.SqlDbType.VarChar, 50)).Value = TextBox2.Text
End If
Error2Name 'TextBox2' is not declared.
Error3Name 'TextBox2' is not declared.
View 24 Replies
Aug 5, 2010
I have a problem with inserting some records into an access database using the sqldatasource control.
Here is Ex 1:
[Code]....
Ex 2:
[Code]....
I have tried both examples above, and some variants of them, but I'm getting errors.
With Ex 1 I get:
System.Data.OleDb.OleDbException was unhandled by user code
ErrorCode=-2147217913
Message="Data Type Mismatch." [code]....
what is wrong with both examples above?I'm adding values to all fields in the table, except for the ID field, ofcouse.
View 2 Replies
Feb 22, 2011
The inline code
<% for (int i = 0; i < ThumbnailList.Items.Count; i++)
{ Response.Write("thumbnailViews[" + i.ToString() + "] = $find('" +
ThumbnailList.Items[i].FindControl("ThumbnailView").ClientID + "');
"); } %>
produces a bunch of compile time errors in Visual Studio 2008 - although it works fine.
But this seems to be the exact way inline code should be added, at least according to this MS help file:
[URL]
The errors are:
expected expression (at "<%")
expected ';' (at "int i")
expected ')' (at ThumbnailList.Items.Count;
expected ';' (at " i++)")
I have done a
<%@ Page Language="C#" ...
at the top of the file.
View 1 Replies
Aug 2, 2010
I have an user control placed on a content page. The content correctly receives the session variables. In the user control I have the following
1. The pageload fires and the text box is correctly set.
<script runat="server">
protected void Page_Load(object sender, EventArgs e)
{
if (Session["app_id"] != null)
{
txtAppId.Text = Session["app_id"].ToString();
}
</script>
2. I have datagrid in the usercontrol which has a binding variable tied to a control parameters as follows
<asp:SqlDataSource ID="SqlDataSourceMain" runat="server"
ConnectionString="Myconnectionstring"
ProviderName="MyProvider" SelectCommand="select
last_name,first_name
from applications
where (id = to_number(:pAppId))">
<SelectParameters>
<asp:controlparameter name="pAppId" controlid="txtAppId" propertyname="Text" />
</SelectParameters>
<SelectParameters>
<asp:controlparameter name="pAppId" controlID="txtAppId" propertyname="Text"
Direction="InputOutput" Type="Int32" ConvertEmptyStringToNull="True" />
I tried the following, same error
</SelectParameters>
<asp:SessionParameter
ConvertEmptyStringToNull="True"
DefaultValue="0"
Direction=" InputOutput "
Name="pAppId"
SessionField="app_id"
Size="integer"
Type="String" />
</asp:SqlDataSource>
For some reason the select parameter pAddId is getting set to null and get the following error when the content page is loaded If I hard code the value it works RA-01036: illegal variable name/number Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: Oracle.DataAccess.Client.OracleException: ORA-01036: illegal variable name/number
View 1 Replies
Feb 9, 2011
How can i set sql parameters for an sqlDatasource in the code behind?
I am trying like this:
[code]....
View 2 Replies
Mar 11, 2010
I have a set of links that exist in the master page. I have a css class i would like to assign to a particular one of them depending on if that is the page you are at during page load. ex: Home will have the current_page_item class if you are at the index page
This is what I have:
Code:
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
DirectCast(Me.Master.FindControl("ctl00_homeLi"), HtmlGenericControl).Attributes.Add("class", "'current_page_item'")
End Sub
View 8 Replies
Sep 4, 2010
I have asked similiar question before where I have two control on the page header says "username" and "gender". User can select both the control or either one and the page will execute searching based on the criteria supplied. So if username supplied
SELECT * FROM [this_table] WHERE username = @username
and if gender supplied
SELECT * FROM [this_table] WHERE gender = @gender
and if both supplied
SELECT * FROM [this_table] WHERE username = @username AND gender = @gender
I know this sounds not very complicated but in my case, I am having like more than 10 controls up there. It is something likeusername, gender, age, date of brith, title, father name, frst name, last name, blur blur blur and it's a lot then I started to lost. if i were to use if else caluse on code-behind and produce query, it would end up writing a lot of if-else and if i use stored procedure (with if-else) then my stored procedure would contains a lot of if-else statement. I am fairly new to this concept and if I'm on the wrong track, please correct me. Is there any better way to save my hair without actually going through each
if-else statement to build the query ?p.s. I'm using GridView and SqlDataSource command to display the result back on .aspx page.
View 2 Replies
Oct 4, 2010
I am trying to check whether a username exists in my database before inserting the new row & display a message to the user if it does.
On my SqlDataSource my InsertCommand looks like this:
InsertCommand="IF NOT EXISTS (SELECT * FROM Users WHERE UserName = @UserName) BEGIN INSERT [Users] ([UserName], [FirstName], [LastName], [City], [State], [Country], [CompanyName], [Active], [PasswordHash]) VALUES (@UserName, @FirstName, @LastName, @City,
@State, @Country, @CompanyName, @Active, @PasswordHash) END"
This works as expected: If the username is unique, the row is created.
If the username already exists, the row is not added.
The problem is, if the row already exists, the insert is rejected but the user is not notified.
So my question is, is there a way I can notify the user?
Maybe something like: InsertCommand = "If Not Exists (select....) Begin Insert...Else Notify User Somehow End This is a basic database, I'm not using the built-in membership provider nor will be.
View 1 Replies
Dec 15, 2010
I have an ASP.NET 3.5 web form with a DropDownList bound to a table of company names in a database. I also have a data bound GridView which I would like to update with data from the database depending on the company name selected in the DropDownList, so that the SelectCommand for the GridView's SqlDataSource is:
SELECT Registration, Telephone, Profile FROM {CompanyName}_VehicleData
Where {CompanyName} is whatever is selected in the DropDownList. I've used the Command and Parameter Editor to create a ControlParameter pointing to the SelectedValue of the DropDownList, but I don't know how to write the SelectCommand query to concatenate the parameter to '_VehicleData'.
View 1 Replies
Jun 3, 2010
I am trying to pass the parameters dynamically thru Sqldatasource and get the results in grid view. Based on the dropdown list selection it has to show the results in grid view. When I hard code its giving correct results but when passing thru parameters i'm unable to get the results in grid view.
Output shud be something like this:
Select the value: 123
124
125.
Lets say user selects '123', the query it runs in sqldatasource is Select col1,col2,col3 from table1 where col1 LIKE '123%'
results will be 12301,12302,12303 with other columns in grid view.
[code]....
View 6 Replies
Mar 15, 2011
I have big filter coming from database by using storedprocedure. This stored procedure contains about 12 parameters. In asp.net page I select these values and after doing that I want to pass these values to SqlDataSourec which is bound to gridview. How can I pass these values to SqlDataSource, manually in codebehind?
View 8 Replies
Sep 2, 2010
I am working on a form that I would like to display a dropdownlist or textbox to insert data into the same field.
Currently it is setup where the end user can use one or the other but not both. I am running into a problem getting with the insert parameters for the secondary control. In this case the textbox.
Is it possible to use and Or statment in my Insert Query? I have tried to no avail.
[Code]....
View 3 Replies
Sep 23, 2010
I have a FormView which is bound to an SQLDataSource. When a user clicks on a save button the form, I need to write any changes made to the FormView back to the table.
I have a Stored Procedure on my MSSQL 2005 database that should be executed when the user clicks on the save button.
It appears the Update is firing, but when I trap the DbCommand object in the SQLDataSource's 'Updating' event, all of the parameters that should be passed to the Stored Procedure are coming through as NULLs. Consequently, the Stored Procedure isn't updating anything.
In the click event of the save button I'm explicitly firing the SQLDataSource's Update method:
[Code]....
The parameters in the SQLDataSource <UpdateParameters></UpdateParameters> section appear to be correct.
Can anyone give me an idea on what to investigate to figure out why it appears the Update is only picking up NULLs?
View 1 Replies
Mar 9, 2010
if i do this to set the fetch parameters:
dsList.SelectParameters["client_id"].DefaultValue = Session["client_id"].ToString();
where dsList is my datasource, it works.
but wen i do the samething for the *%^&* insert, it doesnt:
dsList.InsertParameters["client_id"].DefaultValue ="1234";
it keeps saying its null, i dont understand why it woudl be doing this?
View 2 Replies
Mar 7, 2011
I should perform a Query like this Select * from produtcts where model like @MODEL Now if model is selected from combobox, it should be Select * from produtcts where model like '%MODEL1%' while, if selected chooise is null, it should be like each element in my combobox. how should i do this (in SqlDataSource)
View 5 Replies
Jun 8, 2010
although I've searched already, but here is the thing:I have a ModalPopup wich have a Textbox, a Button and a GridView inside. The Gridview is binded to a SQLDatasource object, and the Select query is something like "SELECT field_1, field_2, field_3, field_4 FROM Table_Name WHERE field_1 LIKE '%@Parameter_2%'".This ModalPopup is used (or gonna be used) to search for a field, so the parameters received by the Query is the text inside the Textbox, I've linked thid inside the SQLDataSource Wizard.The problem is that everything works perfectly fine... inside the panel WITHOUT the ModalPopup Extender, but whe I add the Extender the filter function doesn't work.Here is my code:
[Code]....
Notes: I have a ScriptManager inside the MasterPage, so I don't have to insert one in every page. Also I've tested the code in a new page (the one I use for testing), and it works fine, it filters and everything, the problem is when I add a ModalPopup to the panel.
View 3 Replies
Jun 8, 2010
I got DDL1: 10 miles
20 miles
TextBox1 : 'AAA20'
Button:
When user selects 10 miles from dropdownlist DDL1 and types AAA20 in textbox1 which is of type text, on button click it has to pull all the columns from database and show results in gridview using sqldatasource store procedure. I'm stuck in server side code..how to pull the data..in store procedure I'm passing two parameters val1 and val2. val1 gets data from DDL1 and val2 gets data when user types in textbox1 and it has to validate the text...see the code below mentioned and tell me how to pass the params and get the data in gridview...
[code]....
View 2 Replies
