Data Relations : DataTable « Database ADO.net « Visual C++ .NET

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Visual C++ .NET » Database ADO.net » DataTable 
Data Relations
 
#include "stdafx.h"
using namespace System;
using namespace System::Data;

void main()
{
    DataSet^ myDataSet = gcnew DataSet("Game Data");

    DataTable^ playerTable = myDataSet->Tables->Add("Player");
    DataTable^ scoreTable = myDataSet->Tables->Add("Score");

    DataColumn^ firstNameColumn1 = playerTable->Columns->Add("First Name",String::typeid);
    DataColumn^ lastNameColumn1 = playerTable->Columns->Add("Last Name",String::typeid);
    playerTable->Columns->Add("Email", String::typeid);

    array<DataColumn^>^ primaryKey = {firstNameColumn1, lastNameColumn1};
    playerTable->PrimaryKey = primaryKey;

    DataColumn^ firstNameColumn2 = scoreTable->Columns->Add("First Name",String::typeid);
    DataColumn^ lastNameColumn2 = scoreTable->Columns->Add("Last Name",String::typeid);
    scoreTable->Columns->Add("Points"int::typeid);

    array<DataColumn^>^ foreignKey = {firstNameColumn2, lastNameColumn2};
    myDataSet->Relations->Add("Player-Score", primaryKey, foreignKey);

    myDataSet->Tables["Score"]->Constraints->Add("Unique",foreignKey, true);
}

   
  
Related examples in the same category
1.Add columns to DataTable
2.Add primary key constraints to DataTable
3.Add foreign key to the DataTable
4.Table Mapping
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