使用JavaScript Dynamics CRM设置EntityImage

Question

I need to add an image that is already in web resources (jpg) and according to the name of the product in my entity the entityimage is filled.

I'm using the following Script but it's not working; the result that is returning is empty, causing an error.

The event is triggered on change of the product name field and is calling the function SetImage() .

Any suggestion on how to achieve this?

 //Hook this method to the "OnChange" event of "creditlimit" field function SetImage() { debugger; var productId = Xrm.Page.data.entity.getId(); var productName = Xrm.Page.getAttribute("name").getValue(); if (productName != null) { //retrieve image onecoinpile.jpg and update product record "EntityImage" attribute this.UpdateproductRecordWithNewImage(productId, "new_BurgerGift.jpg"); } } function UpdateproductRecordWithNewImage(productId, webResourceName) { debugger; this.GetImageWebResource ( productId, webResourceName, this.UpdateProductRecord ); } function GetImageWebResource(productId, imageName, successCallback) { debugger; //OData URI to get address information from parent account record var oDataURI = Xrm.Page.context.getClientUrl() + "/XRMServices/2011/OrganizationData.svc/" + "WebResourceSet" + "?$filter=" + "Name eq '" + imageName + "'" + "&$select=Name,Content"; //Synchronous XMLHttpRequest to retrieve account record var req = new XMLHttpRequest(); req.open("GET", encodeURI(oDataURI), false); req.setRequestHeader("Accept", "application/json"); req.setRequestHeader("Content-Type", "application/json; charset=utf-8"); req.onreadystatechange = function () { debugger; if (this.readyState == 4 /* complete */) { req.onreadystatechange = null; //avoids memory leaks if (this.status == 200) { //parse the response string as a JSON object into the successCallback method. successCallback(productId, JSON.parse(this.responseText).d); } else { alert("error"); var errorMsg1 = "GetImageWebResource Error: cannot retrieve image with name = " + imageName + "."; //display a non-blocking alert dialog Xrm.Utility.alertDialog(errorMsg1, function () { }); } } }; req.send(); } function UpdateProductRecord(recordId, webResource) { debugger; try{ //var product = {EntityImage:""}; var product = webResource.results[0].Content; //byte[] content of the web resource alert(product); var jsonproduct= JSON.stringify(product); alert(jsonproduct); }catch(ex){ console.log(ex); } //OData URI var oDataURI = Xrm.Page.context.getClientUrl() + "/XRMServices/2011/OrganizationData.svc/" + "productSet(guid'" + recordId + "')"; alert(oDataURI); //Synchronous post var req = new XMLHttpRequest(); req.open("POST", encodeURI(oDataURI), false); req.setRequestHeader("Accept", "application/json"); req.setRequestHeader("Content-Type", "application/json; charset=utf-8"); req.setRequestHeader("X-HTTP-Method", "MERGE"); req.onreadystatechange = function () { debugger; if (this.readyState == 4 /* complete */) { req.onreadystatechange = null; if (this.status == 204 || this.status == 1223) { //reloads the product record window.location.reload(false); } else { alert("error"); var errorMsg2 = "UpdateProductRecord Error: Cannot update product record with productId = " + recordId + "."; //display a non-blocking alert dialog Xrm.Utility.alertDialog(errorMsg2, function () { }); } } }; req.send(jsonproduct); alert(jsonproduct); } 

Answer 1

Your code looks fine, it should be working when you change the below lines.

var product = {};
product.EntityImage = webResource.results[0].Content; 

You mentioned, result is empty. Can you verify by placing small case new_burgergift.jpg instead of new_BurgerGift.jpg .

Always check before accessing child elements like:

if(webResource.results[0])
    product.EntityImage = webResource.results[0].Content;