Pass Repeater Eval values as Parameter to JavaScript function in ASP.Net

Hi nancylucero23,

Use below code.

HTML

<asp:Repeater ID="Repeater1" runat="server">
    <ItemTemplate>
        <div>
            <div class="img-thumbnail" style="border: 2px solid #A55129">
                <img src="Imagenes/fax-solid.svg" width="100" height="80" />
                <div class="figure-caption">
                    <table class="table">
                        <tr>
                            <td>Ag: <%# Eval("Agencia") %></td>
                            <td>SubAg: <%# Eval("SubAgencia") %></td>
                        </tr>
                        <tr>
                            <td>
                                <asp:Button ID="btnVerMas" runat="server" Style="border: 2px solid #A55129" Text="ver+"
                                    OnClientClick='<%# string.Format("return msgDisp(\"{0}\");", Eval("DNI"))%>' /></td>
                        </tr>
                    </table>
                </div>
            </div>
        </div>
    </ItemTemplate>
</asp:Repeater>
<script type="text/javascript" language="javascript">
    function msgDisp(lid) {
        alert(lid);
    }
</script>

Code

protected void Page_Load(object sender, EventArgs e)
{
    if (!this.IsPostBack)
    {
        System.Data.DataTable dt = new System.Data.DataTable();
        dt.Columns.AddRange(new System.Data.DataColumn[]
        {
            new System.Data.DataColumn("Agencia"),
            new System.Data.DataColumn("SubAgencia"),
            new System.Data.DataColumn("TJs"),
            new System.Data.DataColumn("Novedades"),
            new System.Data.DataColumn("DNI")
        });
        dt.Rows.Add("Agencia 1", "SubAgencia 1", "TJs 1", "Novedades 1", 1);
        dt.Rows.Add("Agencia 2", "SubAgencia 2", "TJs 2", "Novedades 2", 2);
        Repeater1.DataSource = dt;
        Repeater1.DataBind();
    }
}