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POKendo UI grid prevents updating image column
 

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    <p>I am trying a <code>Kendo UI</code> grid implementation which has an image column as shown at below:</p> <pre><code>$("#grid").kendoGrid({ dataSource: dataSource, sortable: true, pageable: true, pageSize: 10, height: 400, toolbar: [{ name: "create"}], columns: [{ field: "ImageData", title: "Select Photo", width: 50, template: '&lt;img id="img_${PersonnelId}" src="/Admin/GetPersonnelImage?personnelId=${PersonnelId}" /&gt;' }, { field: "Name", title: "Name", width: 80 }, { field: "SurName", title: "Surname", width: 80 }, { field: "isActive", title: "Active", width: 40 }, { command: ["edit", "destroy", { name: "Photo", text: "Photo", click: Photo }], title: " ", width: "130px"}], editable: "inline", remove: function (e) { // remove }, save: function (e) { //save } }); } }); </code></pre> <p>Image column template makes <code>GET</code> requests to the following <code>ASP.MVC</code>action method in order to access its related image from database.</p> <pre><code>public FileContentResult GetPersonnelImage(int personnelId) { Personnel p = personnelRepository.GetById(personnelId); if (p != null) { return File(p.ImageData, p.ImageMimeType); } return null; } </code></pre> <p>As shown above, there is a custom command button named <code>Photo</code> which provides user to select an image file on a modal window. Following jQuery function running when user clicks this <code>submitPhoto</code> button on modal window:</p> <pre><code>var wnd, uploadTemplate, dataItem; function Photo(e) { e.preventDefault(); dataItem = this.dataItem($(e.currentTarget).closest("tr")); wnd.content(uploadTemplate(dataItem)); $("#imgfile").change(function (evt) { var f = evt.target.files[0]; var reader = new FileReader(); if (!f.type.match('image.*')) { alert("Selected file does not appear an image file! Please check your selection"); return; } reader.onload = function (e) { $('#preview').attr('src', e.target.result); }; reader.readAsDataURL(f); }); // Updates the src attribute of the grid image column $("#submitPhoto").click(function (e) { var pid = dataItem.PersonnelId; var imgPtr = "#img_" + String(pid); var v = $('#preview').attr('src'); $(imgPtr).attr('src', v); }); wnd.center().open(); } </code></pre> <p>The <code>src</code> attribute of the grid column is updating at the end of the above function. </p> <p>Everything works fine so far. However, grid makes <code>GET</code>requests to the action method immediately when modal window is closed and causes to lose new image selection. </p> <p>I would like to prevent <code>GET</code> requests while user editing data. I don't know what am I doing wrong here. Any suggestions would be really perfect. </p> <p>Thanks in advance</p>
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