I have a stored procedure that gets a parameter and retrieves a list of suppliers from the database:
Create proc spGetSuppliers
(#RowMeterialID int)
as
begin
select distinct sName
from Supplier, RawMaterials, SupplierRawMaterials
where RawMaterials.rmID = #RowMeterialID
and RawMaterials.rmID = SupplierRawMaterials.rmID
end
A datasource :
<asp:SqlDataSource ID="SqlDataSource2" runat="server"
ConnectionString="<%$ ConnectionStrings:igroup9_test1ConnectionString %>"
SelectCommand="spGetSuppliers" SelectCommandType="StoredProcedure">
<SelectParameters>
<asp:Parameter DefaultValue="" Name="RowMeterialID" Type="Int32" />
</SelectParameters>
</asp:SqlDataSource>
And about 10 DropDownList that retrieve data from the database using the DataSource.
I want the first DropDownList to use the DataSource with Value=1 which should be sent to the stored procedure and the second DDL use the value=2 and so on.
Related
I'm using ASP.net to use a gridview. The gridview's sql data source is a select statement where ID = a value (a GUID) from a querystring.
However, when I try and preview it, it doesn't show any results. If I change it to a different type (int) of 1, then it works fine and shows results.
If I do the select statement in SQL Server Management Studio (with the GUID), it works fine and shows the results.
Here's the code for the data:
<asp:SqlDataSource ID="SQLDataSourceL" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionString1 %>"
SelectCommand="SELECT [FName], [Date] FROM [Table1] WHERE (([FName] = #FName) AND ([Type] = #Type)) ORDER BY [Date] DESC, [FName]">
<SelectParameters>
<asp:QueryStringParameter Name="FName" QueryStringField="id" Type="Object" />
<asp:Parameter DefaultValue="X" Name="Type" Type="String" />
</SelectParameters>
</asp:SqlDataSource>
(I've changed the column names).
Hope you can help.
Try changing the QueryStringParameter to the suitable type, eg:
<asp:QueryStringParameter Name="FName" QueryStringField="id" Type="String" />
I use SqlDataSource control to list out search result when user choose a date, but if the date is null, then it will list out all record. How to do the sql command?
SELECT Ref_No as name, Job_Order_ID as value
FROM Job_Order
WHERE (Status <> 'JO_Completed') AND (Delivery_Date = #jaDate)
OR (Status <> 'JO_Completed') ORDER BY Ref_No
code to generate dropdownlist
<asp:SqlDataSource ID="NewJobOrderDS" runat="server" SelectCommand="SELECT Ref_No as name, Job_Order_ID as value FROM Job_Order WHERE (Status <> 'JO_Completed') AND (Delivery_Date = #jaDate) ORDER BY Ref_No" OnSelecting="NewJobOrderDS_Selecting">
<SelectParameters>
<asp:ControlParameter ControlID="txtJADate2" Name="jaDate" PropertyName="Text" Type="DateTime"/>
</SelectParameters>
</asp:SqlDataSource>
For a Gridview:
I am trying to use a stored procedure for the first time in a SQLDataSource for the UpdateCommand:
<asp:SqlDataSource ID="TECT_DataSource" runat="server"
ConnectionString="<%$ ConnectionStrings:OracleConnectionString %>"
ProviderName="<%$ ConnectionStrings:OracleConnectionString.ProviderName %>"
SelectCommand="SELECT MPID, User_Id, Last_Name, First_Name
FROM Scripts.vw_Tect_Exam"
UpdateCommand="P_TECT_UPD_EXAM_ID" UpdateCommandType="StoredProcedure">
<UpdateParameters>
<asp:Parameter Name="MPID" Type="Int32" />
<asp:Parameter Name="User_Id" Type="String" />
</UpdateParameters>
</asp:SqlDataSource>
I am wondering how the UpdateParameters get their values set, since I only specify a name?
The procedure P_TECT_UPD_EXAM_ID expects two parameters as input: "in_MPID" and "in_UserId"
I am also wondering how to map those values to the input parameters for the procedure as the names are different?
You can set them something like this :
Example : In the example MPID is the sql parameter name #MPID
<UpdateParameters>
<asp:ControlParameter Name="MPID" ControlID="MPID_TextBox" PropertyName="Text />
<asp:ControlParameter Name="User_Id" ControlID="User_Id_TextBox" PropertyName="Text />
</UpdateParameters>
Correction: Just spotted your proc param names so it must be
<asp:ControlParameter Name="in_MPID" ...............
<asp:ControlParameter Name="in_User_Id" ...............
Hope this helps....
I really wouldn't use a SqlDataSource. It will be much easier if you make the call to the database in the code-behind (or a better yet in a Data Access Layer).
If you use a SqlDataSource the stored procedure call will only be available on that page. Every time you want to make that same call you will have to copy and paste the SqlDataSource or make a UserControl out of it.
The following example uses the Entity Framework to connect to the database and retrieve records:
public List<Record> GetAllRecordsByUserName(string credentials)
{
List<Record> recordList;
using (CustomEntities context = new CustomEntities())
{
IQueryable<Section> recordQuery = from records in context.Records
where records.UserName == credentials
select records;
recordList = recordQuery.ToList<Record>();
}
return recordList;
}
I'm currently trying to loop through an array (two values) and use both values in a query inside the loop. Please see code below. Right now my code doesn't work. I'm trying to populate dynamically the "appType" parameter within the "SelectParameters" tags of the SQLDataSource, but this won't work.
Any suggestion?
<%
Dim appTypes() As String = {"Extranet", "Internet"}
For Each appType As String In appTypes
%>
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ProviderName = "<%$ ConnectionStrings:CMS.ProviderName %>"
SelectCommand = "SELECT Applications.Name as AppName, Applications.Abbr as AppAbbr, Types.Name as TypeName, Managers.LastName as LastName, Managers.FirstName As FirstName, Managers.EDKeyEmpID as EDKeyID
FROM Types INNER JOIN (Managers INNER JOIN Applications ON Managers.ID=Applications.Manager) ON Types.ID=Applications.Type
WHERE (Types.Name = #appType)
ORDER BY Types.Name, Applications.Name;"
ConnectionString="<%$ ConnectionStrings:CMS %>">
<SelectParameters>
<asp:Parameter DefaultValue="<%=appType%>" Name="appType" Type="String" />
</SelectParameters>
</asp:SqlDataSource>
<asp:Repeater ID="Repeater1" DataSourceID="SqlDataSource1" runat="server">
<ItemTemplate>
<%#Eval("AppName")%> (<%=appType%>)
</ItemTemplate>
</asp:Repeater>
<% Next %>
Modify your SqlDataSource to have an OnSelecting member:
<asp:SqlDataSource ID="SqlDataSource1" runat="server" OnSelecting="OnSelecting"
Reset your SelectParameters back to normal:
<SelectParameters>
<asp:Parameter Name="appType" Type="String" />
</SelectParameters>
Define this method in your code-behind. Implement the logic as required. Here I've shown a dummy value from your Repeater. It'll be up to you to determine how/where that actually comes from (SelectedItem or something similar).
Protected Sub OnSelecting(sender As Object, e As SqlDataSourceSelectingEventArgs) Handles SqlDataSource1.Selecting
e.Command.Parameters("#appType").Value = Repeater1.SomeValue
End Sub
How can I execute a stored procedure using sqldatasource and get the return value in vb.net.
Thanks,
Terri
The method you are looking for is DataBind. Call it using mySqlDataSource.DataBind()
<asp:SqlDataSource
ID="sds2"
runat="server"
ConnectionString="..."
SelectCommand="spTest"
SelectCommandType="StoredProcedure"
>
<SelectParameters>
<asp:ControlParameter ControlID="TextBox1" PropertyName="Text"
Name="ParamName" Type="Int32" DefaultValue="0" />
</SelectParameters>
</asp:SqlDataSource>
<asp:GridView ID="gv" runat="server" DataSourceID="sds2"></asp:GridView>
The stored procedure is executed when you call DataBind. The DataBind method is called automatically if the DataSourceID property of the GridView control refers to a valid data source control.
You need to use a SqlConnection with a SqlCommand, like this:
using (var connection = new SqlConnection(connectionString))
using (var command = new SqlCommand("StoredProcedureName", connection)) {
command.CommandType = CommandType.StoredProcedure;
command.Parameters.AddWithValue("SomeParam", someValue);
object result = command.ExecuteScalar();
}
If you already have the SP returning a value then you have to grab the value in the corresponding event for the data source. AKA - Inserted, Selected, etc...
Here's a couple links illustrating the point.
http://fredrik.nsquared2.com/viewpost.aspx?PostID=162
http://www.velocityreviews.com/forums/t86158-re-how-to-retrieve-an-output-parameter-using-sqldatasource-control.html
<asp:SqlDataSource ID="ADSqlDataSource" runat="server" ConnectionString="<%$ ConnectionStrings:ADConnection %>"
SelectCommand="GetProfile" SelectCommandType="StoredProcedure">
<SelectParameters>
<asp:ControlParameter ControlID="InputTextBox" Name="Host" PropertyName="Text" Type="String" />
</SelectParameters>
</asp:SqlDataSource>
GetProfile is the stored proc name and Host is parameter name, which is retreived from a texbox called InputTextBox