Facing Problem in execution? error--> Object reference not set to an instance of an object. in dap.InsertCommand.CommandType =CommandType.StoredProcedure; line Plz Help me its running properly...

Question

0.00/5 (No votes)

See more:

C#

SqlDataAdapter dap = new SqlDataAdapter("HotelInsert", con);
        dap.InsertCommand.CommandType =CommandType.StoredProcedure;
        dap.InsertCommand.Parameters.AddWithValue("@Country", ddlCountry.SelectedValue);
        dap.InsertCommand.Parameters.AddWithValue("@City", ddlCity.SelectedValue);
        dap.InsertCommand.Parameters.AddWithValue("@HotelName", hotelName.Text);
        dap.InsertCommand.Parameters.AddWithValue("@HotelChain", ddlHotelChain.SelectedValue);
        dap.InsertCommand.Parameters.AddWithValue("@AlterHotelName", altHotelName.Text);
        dap.InsertCommand.Parameters.AddWithValue("@Recommanded", chkRecommended.Checked);
        dap.InsertCommand.Parameters.AddWithValue("@BidAllow", chkBid.Checked);
        dap.InsertCommand.Parameters.AddWithValue("@NCow", chkNCow.Checked);
        dap.InsertCommand.Parameters.AddWithValue("@starRating", ddlStarRating.SelectedValue);
        dap.InsertCommand.Parameters.AddWithValue("@PropertyType", ddlPropertyType.SelectedValue);

        //con.Open();
        DataSet ds=new DataSet();
        dap.Fill(ds);
        //cmd.ExecuteNonQuery();
        //con.Close();
    }

Posted 29-Apr-12 21:52pm

Vivek_Sharma

Updated 29-Apr-12 22:13pm

v4

Add a Solution

Comments

Vivek_Sharma 30-Apr-12 6:10am

Sir Still i having same problem but the error line is change and ie.

dap.InsertCommand.CommandText = "HotelInsert";

now same error coming in this line pls help

2 solutions

Solution 2

Try as below:-----

C#

SqlDataAdapter da=new SqlDataAdapter();
dap.InsertCommand.CommandText="HotelInsert";
dap.InsertCommand.CommandType =CommandType.StoredProcedure;
con.Open();


dap.InsertCommand.CommandType =CommandType.StoredProcedure;
dap.InsertCommand.Parameters.AddWithValue("@Country", ddlCountry.SelectedValue);
dap.InsertCommand.Parameters.AddWithValue("@City", ddlCity.SelectedValue);
dap.InsertCommand.Parameters.AddWithValue("@HotelName", hotelName.Text);
dap.InsertCommand.Parameters.AddWithValue("@HotelChain", ddlHotelChain.SelectedValue);
dap.InsertCommand.Parameters.AddWithValue("@AlterHotelName", altHotelName.Text);
dap.InsertCommand.Parameters.AddWithValue("@Recommanded", chkRecommended.Checked);
dap.InsertCommand.Parameters.AddWithValue("@BidAllow", chkBid.Checked);
dap.InsertCommand.Parameters.AddWithValue("@NCow", chkNCow.Checked);
dap.InsertCommand.Parameters.AddWithValue("@starRating", ddlStarRating.SelectedValue);
dap.InsertCommand.Parameters.AddWithValue("@PropertyType", ddlPropertyType.SelectedValue);
dap.InsertCommand.Parameters.AddWithValue("@CheckinHour", CheckIn);
dap.InsertCommand.Parameters.AddWithValue("@CheckOutHour", CheckOut);
dap.InsertCommand.Parameters.AddWithValue("@WebUrl", WebUrl.Text);
dap.InsertCommand.Parameters.AddWithValue("@Address", Address.Text);
dap.InsertCommand.Parameters.AddWithValue("@Area", Area.Text);
dap.InsertCommand.Parameters.AddWithValue("@AddressCity", City.Text);
dap.InsertCommand.Parameters.AddWithValue("@State", State.Text);
dap.InsertCommand.Parameters.AddWithValue("@Pincode", PinCode.Text);
dap.InsertCommand.Parameters.AddWithValue("@ContactPersFname", fName.Text);
dap.InsertCommand.Parameters.AddWithValue("@ContactPersLname", lName.Text);
dap.InsertCommand.Parameters.AddWithValue("@MobileNum", MobileNum);
dap.InsertCommand.Parameters.AddWithValue("@LandLineNum", LandLine);
dap.InsertCommand.Parameters.AddWithValue("@EmailId", Email.Text);
dap.InsertCommand.Parameters.AddWithValue("@FaxNum", Fax.Text);
dap.InsertCommand.Parameters.AddWithValue("@AdditionalfName", AdfName.Text);
dap.InsertCommand.Parameters.AddWithValue("@AdditionallName", AdlName.Text);
dap.InsertCommand.Parameters.AddWithValue("@AdditionalPurpose", AdPurpose.Text);
dap.InsertCommand.Parameters.AddWithValue("@AdditionalMobileNum", AdMobile.Text);
dap.InsertCommand.Parameters.AddWithValue("@AdditionallLineNum", AdlLine.Text);
dap.InsertCommand.Parameters.AddWithValue("@AdditionalEmailID", AdeMail.Text);
dap.InsertCommand.Parameters.AddWithValue("@AdditionalFax", AdFax.Text);
dap.InsertCommand.Parameters.AddWithValue("@AboutHotel", abtHotel.Text);
dap.InsertCommand.Parameters.AddWithValue("@Gos", ddlGos.SelectedValue);
dap.InsertCommand.Parameters.AddWithValue("@GosHotelCode", GHotelCode.Text);
dap.InsertCommand.Parameters.AddWithValue("@GosName", ddlGName.SelectedValue);
dap.InsertCommand.Parameters.AddWithValue("@HotelMapCode", hotelMapCode.Text);
dap.InsertCommand.Parameters.AddWithValue("@Status", ddlStatus.SelectedValue);
dap.InsertCommand.Parameters.AddWithValue("@ModifiedBy", modifiedBy.Text);
dap.InsertCommand.Parameters.AddWithValue("@CreatedBy", createdBy.Text);

DataSet ds=new DataSet();
dap.Fill(ds);

Posted 29-Apr-12 22:10pm

Mantu Singh

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Bernhard Hiller · Accepted Answer · 2012-05-01T23:18:00

The InsertCommand property is null. You must create a Command object and assign it, e.g.

C#

SqlDataAdapter dap = new SqlDataAdapter();
dap.InsertCommand =  new SqlCommand("HotelInsert", con);

and then continue with your code.
By the way,

C#

DataSet ds=new DataSet();
dap.Fill(ds);

does not make sense here: your SQL command is used to write data into the database, not to retrieve data from the database.