Hindi Alphabet Paging Sorting Filtering in GridView in ASP.Net

You need to add the Hind characters in the List or array then add these to ListItem as done in the article.

Ref:

<div class="AlphabetPager">
    <asp:Repeater ID="rptAlphabets" runat="server">
        <ItemTemplate>
            <asp:LinkButton ID="LinkButton1" runat="server" Text='<%# Eval("Value")%>' Visible='<%# !Convert.ToBoolean(Eval("Selected"))%>' />
            <asp:Label ID="Label1" runat="server" Text='<%#Eval("Value")%>' Visible='<%# Convert.ToBoolean(Eval("Selected"))%>' />
        </ItemTemplate>
    </asp:Repeater>
</div>

Namespace

using System.Collections.Generic;

C#

protected void Page_Load(object sender, EventArgs e)
{
    ViewState["CurrentAlphabet"] = "ALL";
    this.GenerateAlphabets();
}
private void GenerateAlphabets()
{
    List<ListItem> alphabets = new List<ListItem>();
    ListItem alphabet = new ListItem();
    alphabet.Value = "ALL";
    alphabet.Selected = alphabet.Value.Equals(ViewState["CurrentAlphabet"]);
    alphabets.Add(alphabet);
    List<string> hindiAlphabets = new List<string>();
    hindiAlphabets.Add("अ");
    hindiAlphabets.Add("आ");
    hindiAlphabets.Add("इ");
    hindiAlphabets.Add("ई");
    hindiAlphabets.Add("ऊ");
    for (int i = 0; i < hindiAlphabets.Count; i++)
    {
        alphabet = new ListItem();
        alphabet.Value = hindiAlphabets[i];
        alphabet.Text = hindiAlphabets[i];
        alphabet.Selected = alphabet.Value.Equals(ViewState["CurrentAlphabet"]);
        alphabets.Add(alphabet);
    }
    rptAlphabets.DataSource = alphabets;
    rptAlphabets.DataBind();
}

Screenshot