Error in update & Delete

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Hello freinds,
I am using a dataset page dataset.xsd. In it i am having a table named asp3, Whenever i am trying to insert the data in the table through DataSet1TableAdapters.asp31TableAdapter class, data is inserted but if i am trying to update or delete the data it is giving an error. My code is :

C#

 protected void insrt_btn_Click(object sender, EventArgs e)
        {
            int emp_id = int.Parse(id_txtbx.Text);
            int sal = int.Parse(sal_txtbx.Text);
            DataSet1TableAdapters.asp31TableAdapter da3 = new DataSet1TableAdapters.asp31TableAdapter();
            da3.Insert(emp_id, name_txtbx.Text, sal);
            GridView2.DataSource = da3.GetData();
            GridView2.DataBind();
        }

        protected void updt_btn_Click(object sender, EventArgs e)
        {
            int emp_id = int.Parse(id_txtbx.Text);
            int sal = int.Parse(sal_txtbx.Text);
            DataSet1TableAdapters.asp31TableAdapter da3 = new DataSet1TableAdapters.asp31TableAdapter();
            da3.Update(emp_id, name_txtbx.Text, sal);
            GridView2.DataSource = da3.GetData();
            GridView2.DataBind();
        }

        protected void dlt_btn_Click(object sender, EventArgs e)
        {
            int emp_id = int.Parse(id_txtbx.Text);
            int sal = int.Parse(sal_txtbx.Text);
            DataSet1TableAdapters.asp31TableAdapter da3 = new DataSet1TableAdapters.asp31TableAdapter();
            da3.Delete(emp_id);
            GridView2.DataSource = da3.GetData();
            GridView2.DataBind();
        }
    }
}

The bold lines are giving error.

HTML

Error	2	'DAL_BLL.DataSet1TableAdapters.asp31TableAdapter' does not contain a definition for 'Delete' and no extension method 'Delete' accepting a first argument of type 'DAL_BLL.DataSet1TableAdapters.asp31TableAdapter' could be found (are you missing a using directive or an assembly reference?)	C:\Users\KANHA\Documents\Visual Studio 2010\Projects\DAL BLL\DAL BLL\WebForm1.aspx.cs	63	17	DAL BLL (dataset)

HTML

Error	1	No overload for method 'Update' takes 3 arguments	C:\Users\KANHA\Documents\Visual Studio 2010\Projects\DAL BLL\DAL BLL\WebForm1.aspx.cs	53	13	DAL BLL (dataset)

Thanx in advance

With regards,
Rakesh Sharma

Posted 25-Aug-12 22:47pm

kanha.460

Updated 25-Aug-12 23:34pm

Kenneth Haugland

v2

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Mohamed Mitwalli · Answer 1 · 2012-08-25T23:54:00

Solution 1

Hi ,
Check your asp31TableAdapter if it has UpdateCommand and DeleteCommand match to your need and try to execute them Query from the Designer to make sure it works fine then rebuild your application
Best Regards
M.Mitwalli

Posted 25-Aug-12 23:54pm

Mohamed Mitwalli

nitin bhoyate · Answer 2 · 2012-08-25T23:57:00

Solution 2

to update and delete using table adapters you need to set update command and delete command for tableadapter

Refer following URL to set update command and delete command
1[^]

http://msdn.microsoft.com/en-us/library/ms171933%28v=vs.80%29.aspx[^]

Posted 25-Aug-12 23:57pm

nitin bhoyate

vishal pise · Answer 3 · 2012-08-26T01:46:00

You can use this

For reading data we use state table and function is

C#

//for read data 
 public void readstate()
        {
            //Insert
            dataAdState.SelectCommand = new SqlCommand("select * from state_master", con);
           
            dataAdState.InsertCommand = new SqlCommand("insert into state_master(state_id,state_name) values(@state_id,@state_name)", con);
            dataAdState.InsertCommand.Parameters.Add("@state_name", SqlDbType.Text).SourceColumn="state_name";
            dataAdState.InsertCommand.Parameters.Add("@state_id", SqlDbType.Int).SourceColumn = "state_id";
            //Update
            dataAdState.UpdateCommand = new SqlCommand("update state_master set state_name=@state_name where state_id=@state_id",con);
            dataAdState.UpdateCommand.Parameters.Add("@state_name", SqlDbType.Text).SourceColumn = "state_name";
            dataAdState.UpdateCommand.Parameters.Add("@state_id", SqlDbType.Int).SourceColumn = "state_id";
//Delete
            dataAd.DeleteCommand = new SqlCommand("delete from state_master where state_id=@state_id");
            dataAdState.DeleteCommand.Parameters.Add("@state_id", SqlDbType.Int).SourceColumn = "state_id";
            dataAdState.Fill(dataset, "State");
            dataset.Tables["State"].PrimaryKey = new DataColumn[] { dataset.Tables["State"].Columns["state_id"] };
        }

And this for update data.

C#

public void updateState(int state_id, string name)
       {

           dataset.Tables["State"].PrimaryKey = new DataColumn[] { dataset.Tables["State"].Columns["state_id"] };

           DataRow row = dataset.Tables["State"].Rows.Find(state_id);

           row["state_name"] = name;

           DataTable d = dataset.Tables["State"].GetChanges(DataRowState.Modified);
           dataAdState.Update(d);
       }

same for delete