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PONull cannot be for 'stream'
 

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  1. PONull cannot be for 'stream'
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    <p>I keep getting an exception everytime i try to display an image in an emailbody of the project im currently doing. It is retrieving image in a sharepoint picture library to be displayed as an attachment. This is my code and i am having errors on line 264 which is currently calling the method.</p> <pre><code> if (txtEventPictureURL.Text != "") { string siteurl = "http://it3127:30091"; string filename = txtEventPictureURL.Text; System.Drawing.Image imgForCallOut = Image.FromStream(GetImageforCharts(siteurl, filename)); //LINE 264 ERROR mailItem.HTMLBody = Environment.NewLine + @"&lt;html&gt;Event Title : " + txtTitle.Text + Environment.NewLine + "Event Description : " + txtDescription.Text + Environment.NewLine + " Event Start Date From :" + dtpStartDate.Text + " To " + dtpEndDate.Text + Environment.NewLine + "Time From : " + cbStartHours.Text + " : " + cbStartMins.Text + " To " + cbEndHours.Text + " : " + cbEndMins.Text + "Image : " + "&lt;img src=" + imgForCallOut + " /&gt; &lt;/html&gt;"; //var doc = global.ThisAddIn.Application.ActiveWindow().WordEditor; //var pic = doc.Application.Selection.InlineShapes.AddPicture("MY IMAGE URL", true); //doc.Application.Selection.Hyperlinks.add(pic, "MY URL"); } } public static MemoryStream GetImageforCharts(string siteUrl, string fileName) { Byte[] fileContentsArray = null; MemoryStream imageStream = null; //siteUrl = "http://it3127:30091/"; try { using (SPSite site = new SPSite(siteUrl)) // using (SPSite site = SPContext.Current.Site) { using (SPWeb web = site.OpenWeb()) { SPPictureLibrary chartPictureLibrary = (SPPictureLibrary)web.Lists["Pictures"]; SPQuery query = new SPQuery(); query.Query = @"&lt;Where&gt;&lt;Eq&gt;&lt;FieldRef Name ='Title'/&gt;&lt;Value Type='Text'&gt;" + fileName + "&lt;/Value&gt;&lt;/Eq&gt;&lt;/Where&gt;"; SPListItemCollection lstImages = chartPictureLibrary.GetItems(query); foreach (SPListItem r in lstImages) { SPFile file = r.File; using (Stream fileContents = file.OpenBinaryStream()) { long length = fileContents.Length; fileContentsArray = new Byte[length]; fileContents.Read(fileContentsArray, 0, Convert.ToInt32(length)); } } } } imageStream = new MemoryStream(fileContentsArray); return imageStream; } catch (Exception ex) { return null; } } } </code></pre>
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    1. USkyrul
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    1. COwhat is the error message that you get? and where in your code does the error occur?
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      1. USroqz
    2. CO@roqz hi. I get an unhandled exception messagebox that state "Value of 'null' is not valid for 'stream' " .. And i have comment on line 264 that that is where the error occured at. But if you don't see it, it's here ; System.Drawing.Image imgForCallOut = Image.FromStream(GetImageforCharts(siteurl, filename));
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    3. COYou are getting exception in `GetImageforCharts` but you are catching it and handling by returning null which as you see is very bad in your case, put a breakpoint there and see what real exception you get.
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      1. USgzaxx
 

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