Databases
StackOverflow2013
Postsdbo
POASP.NET : Passing a outside variable into a <asp:sqldatasource> tag ASP.NET 2.0
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POASP.NET : Passing a outside variable into a <asp:sqldatasource> tag ASP.NET 2.0
    primarykey
    data
    text
    <p>I'm designing some VB based ASP.NET 2.0, and I am trying to make more use of the various ASP tags that visual studio provides, rather than hand writing everything in the code-behind. I want to pass in an outside variable from the Session to identify who the user is for the query.</p> <pre><code>&lt;asp:sqldatasource id="DataStores" runat="server" connectionstring="&lt;%$ ConnectionStrings:MY_CONNECTION %&gt;" providername="&lt;%$ ConnectionStrings:MY_CONNECTION.ProviderName %&gt;" selectcommand="SELECT THING1, THING2 FROM DATA_TABLE WHERE (THING2 IN (SELECT THING2 FROM RELATED_DATA_TABLE WHERE (USERNAME = @user)))" onselecting="Data_Stores_Selecting"&gt; &lt;SelectParameters&gt; &lt;asp:parameter name="user" defaultvalue ="" /&gt; &lt;/SelectParameters&gt; &lt;/asp:sqldatasource&gt; </code></pre> <p>And on my code behind I have:</p> <pre><code>Protected Sub Data_Stores_Selecting(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.SqlDataSourceSelectingEventArgs) Handles Data_Stores.Selecting e.Command.Parameters("user").Value = Session("userid") End Sub </code></pre> <p>Oracle squaks at me with ORA-01036, illegal variable name. Am I declaring the variable wrong in the query? </p> <p>I thought external variables share the same name with a @ prefixed. from what I understand, this should be placing the value I want into the query when it executes the select.</p> <p>EDIT: Okay, thanks for the advice so far, first error was corrected, I need to use : and not @ for the variable declaration in the query. Now it generates an ORA-01745 invalid host/bind variable name.</p> <p>EDIT AGAIN: Okay, looks like user was a reserved word. It works now! Thanks for other points of view on this one. I hadn't thought of that approach.</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USAndrei
    1. USMaximillian
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. This table or related slice is empty.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload