Both DataSource and DataSourceID are defined on 'dropdownlist'. Remove one definition.

Question

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Exception is follow:-

ddTapeType is a dropdownlist.

Server Error in '/vision' Application.

Both DataSource and DataSourceID are defined on 'ddTapeType'. Remove one definition.

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: System.InvalidOperationException: Both DataSource and DataSourceID are defined on 'ddTapeType'. Remove one definition.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[InvalidOperationException: Both DataSource and DataSourceID are defined on 'ddTapeType'. Remove one definition.]
System.Web.UI.WebControls.DataBoundControl.ConnectToDataSourceView() +8567221
System.Web.UI.WebControls.DataBoundControl.OnLoad(EventArgs e) +19
System.Web.UI.Control.LoadRecursive() +50
System.Web.UI.Control.LoadRecursive() +141
System.Web.UI.Control.LoadRecursive() +141
System.Web.UI.Control.LoadRecursive() +141
System.Web.UI.Control.LoadRecursive() +141
System.Web.UI.Control.LoadRecursive() +141
System.Web.UI.Control.LoadRecursive() +141
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +627

Version Information: Microsoft .NET Framework Version:2.0.50727.3643; ASP.NET Version:2.0.50727.3634

my code in cs file:-

ddTapeType.DataSource = DsStatus;
ddTapeType.DataTextField = Name;
ddTapeType.DataValueField = ID;
ddTapeType.DataBind();

Posted 25-Apr-13 2:51am

Er Atul Sharma

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3 solutions

Solution 2

Hi dear, i am not understand your example so please tell me what i will do or you can send me a correct code as i am post below or i have mention in my question.

Posted 25-Apr-13 3:18am

Er Atul Sharma

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Ankur^\m/ 26-Apr-13 6:14am

Use 'Have a Question or Comment' widget to reply to an answerer. Adding answer won't notify the user and he/she may not ever know about it.

Ankur^\m/ 26-Apr-13 6:16am

Check the ddTapeType markup code from your ascx file. It must be having DataSourceID = "..something..".
Remove it and it should be fine.

Er Atul Sharma 26-Apr-13 7:13am

Thanks for help

Ankur^\m/ 27-Apr-13 12:12pm

You may also vote-up the answer, if it solved your problem.

Er Atul Sharma 4-May-13 7:06am

my problem is not solve now but you will help to me for solving my problem.

Ankur^\m/ 3-May-13 1:19am

3 is a down-vote. :|

Solution 3

XML

Hi Ankur,

In our application,we use datasourceid, if i will remove it then there is any problem, can be face or not

my code:-

&lt;td valign="top" style="height: 612px"&gt;
                                        &lt;rsweb:ReportViewer ID="ReportViewer1" width="100%" height="100%"  runat="server" Font-Names="Verdana" Font-Size="8pt" ShowFindControls="False" &gt;
                                            <localreport reportpath="Reports\PatientLedger.rdlc">
                                                <datasources>
                                                    <rsweb:reportdatasource datasourceid="ObjectDataSource1" name="PatientLedger_Patient" xmlns:rsweb="#unknown"></rsweb:reportdatasource>
                                                    <rsweb:reportdatasource datasourceid="ObjectDataSource1" name="PatientLedger_PaymentDetails" xmlns:rsweb="#unknown"></rsweb:reportdatasource>
                                                    <rsweb:reportdatasource datasourceid="ObjectDataSource1" name="PatientLedger_ClientDetails" xmlns:rsweb="#unknown"></rsweb:reportdatasource>
                                                </datasources>
                                            </localreport>

                                &lt;/td&gt;

please advice to me, what i will do

Posted 2-May-13 2:26am

Er Atul Sharma

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Ankur^\m/ · Accepted Answer · 2013-04-25T02:58:00

The error message cannot be any simpler. Check the properties of your dropdownlist. You will find some text against DataSourceID. Remove that and it should be fine.
The error is because you are assigning two datasource to a dropdownlist. DataSourceID is used when you have .NET provided data source control on your page for example ObjectDataSource.

Both DataSource and DataSourceID are defined on 'dropdownlist'. Remove one definition.

3 solutions

Solution 1

Solution 2

Solution 3

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