Help with Kendo UI Asp.net

Hello Experts,
I am new to Kendo UI and trying to learn.
Requirement:
User can post the message to the community members
While posting message he will select Public/ Private (same as on facebook)
For private user will select particular members
User can upload image.
While posting message, it is optional for the user to send text message or upload image or both.

<div class="demo-section">
                <h2>
                    My Society Members</h2>
                <label for="required">
                    Members</label>
                <select id="reqChat" multiple="multiple" data-placeholder="Select members..." class="mySelect">
                </select>
                <label for="address" class="required">
                    Address</label>
                <textarea type="address" id="txtMessage" name="Message"  rows="10" cols="30" style="width:100%;height:100px" class="k-textbox" placeholder="Type your message here"></textarea>
                <button class="k-button" id="getChat">
                    Send Message</button>
            </div>

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 var reqChat = null;

                    $.ajax({
                        url: "api/LocalContact",
                        contentType: "json",
                        success: function (data) {
                            $.each(data, function (index, item) {
                                $("#reqChat").append('<option>' + item.Name + '</option>')
                            });
                            reqChat = $("#reqChat").kendoMultiSelect().data("kendoMultiSelect");
                            var all = $.map(reqChat.dataSource.data(), function (dataItem) {
                                return dataItem.value;
                            });
                            reqChat.value(all);
                        }
                    });

                    $("#getChat").click(function () {
                        alert("Attendees:\n\nRequired: " + reqChat.value());
                        return false;
                    });

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Currently all users are selected by default in Multiselect.

What I really worried about is file upload.

Your help is really appreciated. Thanks in advance