hi Kurac1,
Try this code. hope it helpful...
<asp:TextBox ID="txt1" runat="server"></asp:TextBox>
<asp:TextBox ID="txt2" runat="server"></asp:TextBox>
<asp:Button ID="btnclick" Text="click" runat="server" OnClick="btnclick_Click" />
<asp:GridView ID="grdview" runat="server" EnableModelValidation="True" AutoGenerateColumns="False">
<Columns>
<asp:TemplateField HeaderText="From">
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# DataBinder.Eval(Container.DataItem,"From")%>' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="To">
<ItemTemplate>
<asp:Label ID="Label2" runat="server" Text='<%# DataBinder.Eval(Container.DataItem,"To")%>' />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
aspx.cs:
protected void btnclick_Click(object sender, EventArgs e)
{
DataTable dt = new DataTable();
DataColumn cl = new DataColumn("From");
dt.Columns.Add(cl);
cl = new DataColumn("To");
dt.Columns.Add(cl);
//-- add first row in datatable
DataRow dr = dt.NewRow();
dr[0] = txt1.Text;
dr[1] = txt2.Text;
dt.Rows.Add(dr);
grdview.DataSource = dt;
grdview.DataBind();
}