Adding custom query to typed dataset

Below code will work if you working with typed dataset and you want to execute your own queries against adapters i.e. custom queries with typed dataset.

So you have to utilize the partial class of adapters.

namespace MyWin.DataSet1TableAdapters //partial class to add my custom method to update the command collection and queries.
{

public partial class EmpTableAdapter
{
public void fillformyquery(MyWin.DataSet1.EmpDataTable emp1)
{
System.Data.OleDb.OleDbCommand[] mycol = new System.Data.OleDb.OleDbCommand[1];

mycol[0] = new global::System.Data.OleDb.OleDbCommand();
mycol[0].Connection = this.Connection;
mycol[0].CommandText = “Select * from emp where name = ‘%alliswell%’”;
mycol[0].CommandType = global::System.Data.CommandType.Text;
this._commandCollection = mycol;

//this._commandCollection = new System.Data.OleDb.OleDbCommand[1];
this.Fill(emp1);
}
}
}

//calling code

public void RunMyQuery()
{
dataset1.EmpTableAdapter eda = new dataset1.EmpTableAdapter();//assume you have added adapter to the designeer
dataset1.EmpDataTable emp1 = new dataset1.EmpDataTable();
eda.fillformyquery(emp1);

}

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2 Responses to Adding custom query to typed dataset

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