Some
time while developing application in asp.net , it is required to merge two
datatables. It can be achieved by using Merge function of Datatable in asp.net.
Description: In previous articles I have explained
ASP.NET:
Merge two data-tables into one in asp.net using c# & vb.net And Configure or Querying SqlDataSource to database And Insert
data In gridview in ASP.NET using C# & vb.Net And Custom
Validator: Server Side validation using Custom Validator in ASP.NET (C# &
Vb.NET).
In
this article I will explain how to merge two data tables in to one.
Public DataTable merge_table()
{
Var tbl = GetTable1();
tbl.Merge(GetTable2());
return tbl;
}
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Demo:
Click on image to Enlarge it
Implementation:
Now design your web page:
<div><table>
<tr><td ><b>First Table<br />
</b></td>
<td > </td>
<td><b>Second
table</b></td>
<td></td></tr>
<tr><td >
<asp:GridView ID="GridView1" runat="server" CellPadding="4" ForeColor="#333333" GridLines="None">
<HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
</asp:GridView></td><td >
</td><td> <asp:GridView ID="GridView2" runat="server" CellPadding="4" ForeColor="#333333" GridLines="None" style="margin-left: 0px">
<HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
</asp:GridView></td></tr>
<tr><td ></td><td > </td><td></td></tr>
<tr><td colspan="3"><strong>
<br />
Result Table<br />
</strong></td></tr>
<tr><td colspan="3"> <asp:GridView ID="ResultGridview" runat="server" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" CellPadding="3">
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
</asp:GridView></td></tr>
</table>
</div>
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Asp.NET Code:
Now write following code to Bind Form View Data Control.
In
C#:
Add Following Namespaces:
Using System.Data;
Now write following code to merge Two datatable:
public partial class dataTable
: System.Web.UI.Page
{
protected void
Page_Load(object sender, EventArgs e)
{
Fill_Grid1();
Fill_Grid2();
FillResultGrid();
}
public DataTable
GetTable2()
{
DataTable
table = new DataTable();
var
colm= table.Columns.Add("ID", typeof(int));
table.PrimaryKey = new DataColumn[]
{colm };
table.Columns.Add("Name",
typeof(string));
table.Rows.Add(1, "Vijay");
table.Rows.Add(2, "vikram");
table.Rows.Add(3, "Vishal");
table.Rows.Add(4, "Vikas");
return
table;
}
public DataTable
GetTable1()
{
DataTable
table = new DataTable();
var
colm= table.Columns.Add("ID", typeof(int));
table.PrimaryKey = new DataColumn[]
{colm };
table.Columns.Add("Name",
typeof(string));
table.Columns.Add("RollNo",
typeof(string));
table.Rows.Add(1, "Ajay","A01");
table.Rows.Add(2, "Anil",
"A02");
table.Rows.Add(3, "Ankit",
"B03");
table.Rows.Add(4, "Anish",
"B04");
return
table;
}
public DataTable
merge_table()
{
var
tbl = GetTable1();
tbl.Merge(GetTable2());
return
tbl;
}
public void
Fill_Grid1()
{
GridView1.DataSource
= GetTable1();
GridView1.DataBind();
}
public void
Fill_Grid2()
{
GridView2.DataSource =
GetTable2();
GridView2.DataBind();
}
public void
FillResultGrid()
{
ResultGridview.DataSource = merge_table();
ResultGridview.DataBind();
}
}
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In Vb.Net:
Add Following Namespaces:
Imports System.Data
Write following code:
Partial Public Class dataTable
Inherits
System.Web.UI.Page
Protected Sub
Page_Load(sender As Object, e As EventArgs) Handles Me.Load
Fill_Grid1()
Fill_Grid2()
FillResultGrid()
End Sub
Public Function
GetTable2() As DataTable
Dim
table As New DataTable()
Dim
colm = table.Columns.Add("ID", GetType(Integer))
table.PrimaryKey =
New DataColumn()
{colm}
table.Columns.Add("Name",
GetType(String))
table.Rows.Add(1, "Vijay")
table.Rows.Add(2, "vikram")
table.Rows.Add(3, "Vishal")
table.Rows.Add(4, "Vikas")
Return
table
End Function
Public Function
GetTable1() As DataTable
Dim
table As New DataTable()
Dim
colm = table.Columns.Add("ID", GetType(Integer))
table.PrimaryKey =
New DataColumn()
{colm}
table.Columns.Add("Name",
GetType(String))
table.Columns.Add("RollNo",
GetType(String))
table.Rows.Add(1, "Ajay",
"A01")
table.Rows.Add(2, "Anil",
"A02")
table.Rows.Add(3, "Ankit",
"B03")
table.Rows.Add(4, "Anish",
"B04")
Return
table
End Function
Public Function
merge_table() As DataTable
Dim
tbl = GetTable1()
tbl.Merge(GetTable2())
Return
tbl
End Function
Public Sub
Fill_Grid1()
GridView1.DataSource = GetTable1()
GridView1.DataBind()
End Sub
Public Sub
Fill_Grid2()
GridView2.DataSource = GetTable2()
GridView2.DataBind()
End Sub
Public Sub
FillResultGrid()
ResultGridview.DataSource = merge_table()
ResultGridview.DataBind()
End Sub
End Class
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