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There are three ways to add a Web Part (or something similar) to a SharePoint Online site. Use a Sandbox Solution. You create the Sandbox Solution with the Web Part and upload it the the Solution Gallery of the Site Collection in SharePoint Online the same way you would on-premises. Note that Sandbox Solutions that contain managed code are deprecated and ...


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Assuming you have the MemoryStream, the below code will bring the Save Dialog so user can choose the path Byte[] byteArray = memoryStream.ToArray(); memoryStream.Flush(); memoryStream.Close(); Response.Clear(); Response.ClearHeaders(); Response.AddHeader("Content-Disposition","attachment; filename=filename.zip"); Response.ContentType = ...


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Querying and manipulating the DOM elements can be done in SPO Page through App part (Client hosted web part) even though its run inside the iframe on the hosted web page. To do this, you need to wire-up the web part properties with query string as suggested by John-M and I tried few approaches and found none except this idea. SP.RequestExecutor.js doesn't ...



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