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I want to add an attribute to an existing entity using Java Script.
For this i also want to get list of entities in a dropdown of my UI such that i can select an entity and add attributes to the selected entity.
Please provide me solution.
Thanks in Advance.
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Vaibhav,
Download Rest Builder for dynamics 365 and import it to the CRM Instance and refresh it.
When you click on the rest builder button it opens in a new tab with requirements what you just requested for !....
Thanks..
Hi,
You could use Web API in Javascript to retrieve all the entity Display names in Dynamics CRM. You could use the following URL in the XMLHttpRequest in Javascript for calling the Web API to retrieve all the entities.
https://msdn.microsoft.com/en-in/library/mt607522.aspx#bkmk_QueryingEntityMetadata
For examples of consuming Web API in javascript, see the link below.
https://msdn.microsoft.com/en-in/library/gg334279.aspx#bkmk_usingXHR
Use the code below. Here we use GET method.
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var req = new XMLHttpRequest();
req.open("GET",encodeURI(clientURL + "/api/data/v8.2/EntityDefinitions?$select=LogicalName,DisplayName"), true);
req.setRequestHeader("Accept", "application/json");
req.setRequestHeader("Content-Type", "application/json; charset=utf-8");
req.setRequestHeader("OData-MaxVersion", "4.0");
req.setRequestHeader("OData-Version", "4.0");
req.onreadystatechange = function () {
if (this.readyState == 4) {
req.onreadystatechange = null;
if (this.status == 200) {
var result = JSON.parse(this.response);
//Write the logic to set the value to the dropdownlist by looping through this response
//Set the value of the option in the drop-down list as LogicalName and text as DisplayName.
}
else {
var error = JSON.parse(this.response).error;
console.log(error.message);
}
}
};
req.send(JSON.stringify({ name: "Sample account" }));
In order to create attributes in the entity, you could use the following Web API URL and use the POST method in XML HTTP Request.
See: https://msdn.microsoft.com/en-in/library/mt593078.aspx#bkmk_CreateAttributes
You can use the webapi for your requirements.
To get the list of your entities, you can use the RetrieveAllEntities web api function call.
msdn.microsoft.com/.../mt683536.aspx
The following link demonstrates how to Create an Attribute using web api.
msdn.microsoft.com/.../mt593078.aspx
You will need to use the Entity Definitions api call with the Entity Id and the Create Request for the attribute.
There are some api helper tools available if you need.
One of the recommended ones is XrmTools CRMWebApi from David Yack:
github.com/.../Xrm.Tools.CRMWebAPI
Hope this helps.
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