Add (Insert) new row to ASP.Net Repeater using C# and VB.Net

Hi Tevin,

Check this example. Now please take its reference and correct your code.

HTML

<asp:Repeater runat="server" ID="rptCustomers">
    <HeaderTemplate>
        <table>
            <tr>
                <th>Name</th>
                <th>Country</th>
            </tr>
    </HeaderTemplate>
    <ItemTemplate>
        <tr>
            <td><asp:Label Text='<%# Eval("Name") %>' runat="server" /></td>
            <td><asp:Label Text='<%# Eval("Country") %>' runat="server" /></td>
        </tr>
    </ItemTemplate>
    <FooterTemplate>
        </table>
    </FooterTemplate>
</asp:Repeater>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse">
    <tr>
        <td style="padding-bottom: 10px">Name:<br />
            <asp:TextBox ID="txtName" runat="server" />
        </td>
    </tr>
    <tr>
        <td style="padding-bottom: 10px">Country:<br />
            <asp:TextBox ID="txtCountry" runat="server" />
        </td>
    </tr>
    <tr>
        <td style="width: 100px">
            <asp:Button ID="btnAdd" runat="server" Text="Add" OnClick="Insert" />
        </td>
    </tr>
</table>

Code

C#

using System.Data;

VB.Net

Imports System.Data

Code

C#

protected void Page_Load(object sender, EventArgs e)
{
    if (!this.IsPostBack)
    {
        DataTable dt = new DataTable();
        dt.Columns.AddRange(new DataColumn[2] { new DataColumn("Name"), new DataColumn("Country") });
        ViewState["Customers"] = dt;
        this.BindRepeater();
    }
}

protected void BindRepeater()
{
    rptCustomers.DataSource = (DataTable)ViewState["Customers"];
    rptCustomers.DataBind();
}

protected void Insert(object sender, EventArgs e)
{
    DataTable dt = (DataTable)ViewState["Customers"];
    dt.Rows.Add(txtName.Text.Trim(), txtCountry.Text.Trim());
    ViewState["Customers"] = dt;
    this.BindRepeater();
    txtName.Text = string.Empty;
    txtCountry.Text = string.Empty;
}

VB.Net

Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
    If Not Me.IsPostBack Then
        Dim dt As DataTable = New DataTable()
        dt.Columns.AddRange(New DataColumn(1) {New DataColumn("Name"), New DataColumn("Country")})
        ViewState("Customers") = dt
        Me.BindRepeater()
    End If
End Sub

Protected Sub BindRepeater()
    rptCustomers.DataSource = CType(ViewState("Customers"), DataTable)
    rptCustomers.DataBind()
End Sub

Protected Sub Insert(ByVal sender As Object, ByVal e As EventArgs)
    Dim dt As DataTable = CType(ViewState("Customers"), DataTable)
    dt.Rows.Add(txtName.Text.Trim(), txtCountry.Text.Trim())
    ViewState("Customers") = dt
    Me.BindRepeater()
    txtName.Text = String.Empty
    txtCountry.Text = String.Empty
End Sub

Screenshot