asp.net drop down list

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my project two drop down list and one button.when i can select the both drop down list different value and click the button then display data in grid view.when drop down list value passed in stored procedure then no any data can be return..
code for click event

C#

protected void btnShow_Click(object sender, EventArgs e)
{
    SqlConnection objConn = new SqlConnection();
    objConn.ConnectionString = ConfigurationManager.ConnectionStrings["Eagle TradelinkConnectionString"].ToString();
    objConn.Open();
    SqlCommand objCmd = objConn.CreateCommand();
    SqlDataAdapter sqladp = new SqlDataAdapter();
    DataSet ds = new DataSet();
    objCmd.CommandType = CommandType.StoredProcedure;
    objCmd.CommandText = "PR_ParcelBooking_SelectByFromCityIDToCityID";
    objCmd.Parameters.Add("@FromCityID", SqlDbType.Int).Value = ddlFromCityID.SelectedValue;
    objCmd.Parameters.Add("@ToCityID", SqlDbType.Int).Value = ddlToCityID.SelectedValue;
    sqladp.SelectCommand = objCmd;
    sqladp.Fill(ds);
    gvCityList.DataSource = ds;
    gvCityList.DataBind();
}

above code any mistake or not..can give me answer

Posted 8-Mar-13 18:37pm

Ashvinrajkot

Updated 8-Mar-13 20:23pm

Karthik Harve

v2

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Comments

Nandakishore G N 9-Mar-13 1:46am

what is the error did you got?

Ashvinrajkot 9-Mar-13 3:25am

grid view not display anything

Nandakishore G N 9-Mar-13 3:26am

check whether the dataset is populating or not after passing values from codebehind.using line by line debugging..

Ashvinrajkot 9-Mar-13 22:17pm

give me solution?????

Ashvinrajkot 9-Mar-13 22:17pm

give me solution??

Sandeep Mewara 9-Mar-13 5:55am

What do you see when you debug? What is the issue you are facing?

Ashvinrajkot 9-Mar-13 7:32am

when debug all code running debug perfectly but not data return..
I can copy my stored procedure check this it right...

set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
GO
ALTER PROCEDURE [dbo].[PR_ParcelBooking_SelectByFromCityIDToCityID]

@FromCityID int,
@ToCityID int

AS

SELECT

[dbo].[ParcelBooking].[SenderName],
[dbo].[ParcelBooking].[ReceiverName],
[dbo].[ParcelBooking].[ParcelTypeID],
[dbo].[ParcelType].[ParcelName],
[dbo].[ParcelBooking].[Quantity]
FROM

[dbo].[ParcelBooking]

LEFT OUTER JOIN [dbo].[ParcelType]
ON [dbo].[ParcelType].[ParcelID] = [dbo].[ParcelBooking].[ParcelTypeID]
WHERE [dbo].[ParcelBooking].[FromCityID]="@FromCityID"
AND [dbo].[ParcelBooking].[ToCityID]="@ToCityID"

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Sandeep Mewara · Answer 1 · 2013-03-09T02:18:00

Yes, your SP is wrong.

Following needs correction:

SQL

LEFT OUTER JOIN [dbo].[ParcelType] ON [dbo].[ParcelType].[ParcelID] = [dbo].[ParcelBooking].[ParcelTypeID] WHERE [dbo].[ParcelBooking].[FromCityID]="@FromCityID" AND [dbo].[ParcelBooking].[ToCityID]="@ToCityID"

There will be no quotes around the parameters. Do:

SQL

LEFT OUTER JOIN [dbo].[ParcelType] ON [dbo].[ParcelType].[ParcelID] = [dbo].[ParcelBooking].[ParcelTypeID] WHERE [dbo].[ParcelBooking].[FromCityID]=@FromCityID AND [dbo].[ParcelBooking].[ToCityID]=@ToCityID