Show Hide Button inside Repeater based on condition using C# and VB.Net in ASP.Net

Hi azfar,

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

HTML

<asp:DropDownList ID="ddlIsDelete" runat="server">
    <asp:ListItem Value="0" Text="Select" />
    <asp:ListItem Value="True" Text="True" />
    <asp:ListItem Value="False" Text="False" />
</asp:DropDownList>
<asp:Button Text="Search" runat="server" OnClick="OnSearch" />
<hr />
<asp:Repeater ID="rptCustomers" runat="server" OnItemDataBound="OnItemDataBound">
    <HeaderTemplate>
        <table>
            <tr>
                <th>Id</th>
                <th>Name</th>
                <th>Country</th>
                <th>IsDelete</th>
            </tr>
    </HeaderTemplate>
    <ItemTemplate>
        <tr>
            <td><asp:Label ID="lblCustomerId" runat="server" Text='<%# Eval("Id") %>' /></td>
            <td><asp:Label ID="lblName" runat="server" Text='<%# Eval("Name") %>' /></td>
            <td><asp:TextBox ID="txtCountry" runat="server" Text='<%# Eval("Country") %>' /></td>
            <td>
                <div id="deleteButton" runat="server" visible="false">
                    <asp:Button Text="Delete" runat="server" />
                </div>
            </td>
        </tr>
    </ItemTemplate>
    <FooterTemplate>
        </table>
    </FooterTemplate>
</asp:Repeater>

Code

C#

protected void Page_Load(object sender, EventArgs e)
{
    if (!this.IsPostBack)
    {
        BindRepeater();
    }
}
protected void OnSearch(object sender, EventArgs e)
{
    BindRepeater();
}
protected void OnItemDataBound(object sender, RepeaterItemEventArgs e)
{
    if (ddlIsDelete.SelectedIndex > 0)
    {
        if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
        {
            (e.Item.FindControl("deleteButton") as Control).Visible = Convert.ToBoolean(ddlIsDelete.SelectedValue);
        }
    }
}
private void BindRepeater()
{
    System.Data.DataTable dt = new System.Data.DataTable();
    dt.Columns.AddRange(new System.Data.DataColumn[] { 
                        new System.Data.DataColumn("Id", typeof(int)),
                        new System.Data.DataColumn("Name", typeof(string)),
                        new System.Data.DataColumn("Country",typeof(string)) });
    dt.Rows.Add(1, "John Hammond", "United States");
    dt.Rows.Add(2, "Mudassar Khan", "India");
    dt.Rows.Add(3, "Suzanne Mathews", "France");
    dt.Rows.Add(4, "Robert Schidner", "Russia");
    rptCustomers.DataSource = dt;
    rptCustomers.DataBind();
}

VB.Net

Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
    If Not Me.IsPostBack Then
        BindRepeater()
    End If
End Sub

Protected Sub OnSearch(ByVal sender As Object, ByVal e As EventArgs)
    BindRepeater()
End Sub

Protected Sub OnItemDataBound(ByVal sender As Object, ByVal e As RepeaterItemEventArgs)
    If ddlIsDelete.SelectedIndex > 0 Then
        If e.Item.ItemType = ListItemType.Item OrElse e.Item.ItemType = ListItemType.AlternatingItem Then
            TryCast(e.Item.FindControl("deleteButton"), Control).Visible = Convert.ToBoolean(ddlIsDelete.SelectedValue)
        End If
    End If
End Sub

Private Sub BindRepeater()
    Dim dt As System.Data.DataTable = New System.Data.DataTable()
    dt.Columns.AddRange(New System.Data.DataColumn() {
                        New System.Data.DataColumn("Id", GetType(Integer)),
                        New System.Data.DataColumn("Name", GetType(String)),
                        New System.Data.DataColumn("Country", GetType(String))})
    dt.Rows.Add(1, "John Hammond", "United States")
    dt.Rows.Add(2, "Mudassar Khan", "India")
    dt.Rows.Add(3, "Suzanne Mathews", "France")
    dt.Rows.Add(4, "Robert Schidner", "Russia")
    rptCustomers.DataSource = dt
    rptCustomers.DataBind()
End Sub

Screenshot