How to close a layouts page loaded in an SPModalDialog from server side

ASP:
// In _layouts\YourSolution\dialogpage.aspx:

<asp:Button ID="btnSaveAndClose" runat="server" OnClick="btnSaveAndClose_Click" />

C#:

protected void btnSaveAndClose_Click(object sender, EventArgs e)
{
    // code logic before closing the dialog
    // ..
    // ..
    
    string script = @"window.frameElement.commonModalDialogClose(1, '');";
    ScriptManager.RegisterClientScriptBlock(this, this.GetType(), "Close", script, true);
    
    // alternatives for the script variable are:
    // string script = @"window.frameElement.commitPopup();";
    // string script = @"window.frameElement.cancelPopUp();";

    // NOTE: use RegisterStartupScript when executed from .ASCX/webpart:  
    // ScriptManager.RegisterStartupScript(Page, Page.GetType(), "Close", script, true);
}

A small gotcha I ran into is that I had the btnSaveAndClose control Ajaxified, which caused it to throw exceptions such as:

"0x800a1391 - JavaScript runtime error: 'Sys' is undefined"

and

"0x800a1391 - JavaScript runtime error: 'ULSSendExceptionImpl' is undefined"

RadGrid duplicate insert after page refresh

Hi guys,

Here's a quick one. I had a problem with a RadGrid I created for an application page the other day. It's a common known problem in the ASP.NET community and I saw several solutions but there is a very simple one to it. Let me explain the issue first. Whenever I would insert/update/delete a record using the grid and I would refresh the page, the application would fire that event again. This could potentially cause duplicate inserts or exceptions being thrown whenever trying to delete a record that does not exist anymore.

It is a classic problem.

The easiest way to get passed this hurdle is to do a redirect after the post. It is up to you to decide whether to redirect the users to, say, a confirmation/thank you page or to the same page.

As for the latter, add the following at the end of your grid event logics:

     Response.Redirect(Request.Url.AbsoluteUri);

After your updates have been made, the page will redirect to itself and prevent the event from firing again.

Adding, updating and deleting SPListItems using the SharePoint list webservice in combination with XDocument

Quick code snippet which does the following:

- generates a Batch element of type XDocument (i choose for XDocument rather than XmlDocument because it makes it so much simpler to build up the document
- converts the XDocument object to an XmlDocument using an XmlReader

XmlDocument doc;

XDocument xDoc = new XDocument(
    new XElement("Batch", new XAttribute("OnError", "Continue"),

        // Add new item
        new XElement("Method", new XAttribute("ID", "1"), new XAttribute("Cmd", "New"),
            new XElement("Field", "test0", new XAttribute("Name", "Title")),
            new XElement("Field", "Update", new XAttribute("Name", "UserAction")),
            new XElement("Field", "(GAR-2313)", new XAttribute("Name", "OldValue")),
            new XElement("Field", "(SWX-9582)", new XAttribute("Name", "NewValue"))
        ),

        // Updates item: set column 'ProjectStatus' with value 'CLOSED' for item with ID 4
        new XElement("Method", new XAttribute("ID", "2"), new XAttribute("Cmd", "Update"),
            new XElement("Field", "4", new XAttribute("Name", "ID")),
            new XElement("Field", "CLOSED", new XAttribute("Name", "ProjectStatus"))
        ),

        // Delete items with ID 11 and 17 
        new XElement("Method", new XAttribute("ID", "3"), new XAttribute("Cmd", "Delete"),
            new XElement("Field", "11", new XAttribute("Name", "ID"))),
        new XElement("Method", new XAttribute("ID", "4"), new XAttribute("Cmd", "Delete"),
            new XElement("Field", "11", new XAttribute("Name", "ID")
            )
        )
    )
);

using (XmlReader xmlReader = xDoc.CreateReader())
{
    doc = new XmlDocument();
    doc.Load(xmlReader);
}

// assuming a web reference called 'ListWebService' is present..
using (ListWebService.Lists listsWebSvc = new ListWebService.Lists())
{
    //This passes the default user credentials of the user to the web service system
    listsWebSvc.Credentials = System.Net.CredentialCache.DefaultNetworkCredentials;

    // replace '_listWebSvcUrl' with the url of your list
    listsWebSvc.Url = _listWebSvcUrl;

    // replace '_listName' with the name of your list
    listsWebSvc.UpdateListItems(_listName, doc); 
}

Quick reference guide for formatting divs as tables

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN">
<html>
    <head>
        <style type="text/css">
            .containerButtons {
                width: 1200px;
                height: 40px;
                border-color: orange;
                border-style: solid;
                position: block;
            }
            .divButtonSection {
                width: 15%;
                height: 70%;
                border-color: blue;
                border-style: solid;
                float: right;
                position: inline-block;
                display: table-cell;
                vertical-align: middle;
            }
            .containerInformation {
                width: 1200px;
                height: 200px;
                border-color: grey;
                border-style: solid;
                display: block;
            }
            .divInformationTable {
                width: 24%;
                height: 95%;
                position: relative;
                border-color: green;                
                border-style: dashed;
                display: inline-block;
                margin: 0px 0px 0px 0px;
            }            
            .divInformationRow {
                width: 90%;
                height: 22%;
                position: relative;
                border-color: red;
                border-style: solid;
                display: block;
                margin: 0px 0px 0px 0px;
            }
            .divInformationHeaderCell {
                width: 96%;
                height: 90%;
                position: relative;
                border-color: black;
                border-style: solid;
                display: table-cell;
                margin: 0px 0px 0px 0px;
                float: left;            
            }
            .divInformationCellLabel {
                width: 20%;
                height: 90%;
                position: relative;
                border-color: black;                
                border-style: solid;
                display: table-cell;
                margin: 0px 0px 0px 0px;
                float: left;
            }
            .divInformationCellControl {
                width: 75%;
                height: 90%;
                position: relative;
                border-color: blue;
                border-style: solid;
                display: table-cell;
                margin: 0px 0px 0px 0px;
                float: left;
            }
        </style>
    </head>
    <body>
        <div class="containerInformation">
            <div class="divInformationTable">
                <div class="divInformationRow">
                    <div class="divInformationHeaderCell">
                        Dealer Information
                    </div>
                </div>
                <div class="divInformationRow">
                    <div class="divInformationCellLabel">
                        Label1
                    </div>
                    <div class="divCellControl">
                    Control1
                    </div>            
                </div>
                <div class="divInformationRow">
                    <div class="divInformationCellLabel">
                        Label2
                    </div>
                    <div class="divCellControl">
                        Control2
                    </div>
                </div>
                <div class="divInformationRow">
                    <div class="divInformationCellLabel">
                        Label2
                    </div>
                    <div class="divCellControl">
                        Control2
                    </div>
                </div>                
            </div>    
            <div class="divInformationTable">
                <div class="divInformationRow">
                    <div class="divInformationHeaderCell">
                        Seller Information
                    </div>
                </div>    
                <div class="divInformationRow">
                    <div class="divInformationCellLabel">
                        Label3
                    </div>
                    <div class="divCellControl">
                    Control3
                    </div>            
                </div>
                <div class="divInformationRow">
                    <div class="divInformationCellLabel">
                        Label4
                    </div>
                    <div class="divCellControl">
                        Control4
                    </div>
                </div>
                <div class="divInformationRow">
                    <div class="divInformationCellLabel">
                        Label4
                    </div>
                    <div class="divCellControl">
                        Control4
                    </div>
                </div>                
            </div>
            <div class="divInformationTable">
                <div class="divInformationRow">
                    <div class="divInformationHeaderCell">
                        Seller Information
                    </div>
                </div>    
                <div class="divInformationRow">
                    <div class="divInformationCellLabel">
                        Label3
                    </div>
                    <div class="divCellControl">
                    Control3
                    </div>            
                </div>
                <div class="divInformationRow">
                    <div class="divInformationCellLabel">
                        Label4
                    </div>
                    <div class="divCellControl">
                        Control4
                    </div>
                </div>
                <div class="divInformationRow">
                    <div class="divInformationCellLabel">
                        Label4
                    </div>
                    <div class="divCellControl">
                        Control4
                    </div>
                </div>
            </div>
            <div class="divInformationTable">
                <div class="divInformationRow">
                    <div class="divInformationHeaderCell">
                        Seller Information
                    </div>
                </div>    
                <div class="divInformationRow">
                    <div class="divInformationCellLabel">
                        Label3
                    </div>
                    <div class="divCellControl">
                    Control3
                    </div>            
                </div>
                <div class="divInformationRow">
                    <div class="divInformationCellLabel">
                        Label4
                    </div>
                    <div class="divCellControl">
                        Control4
                    </div>
                </div>
                <div class="divInformationRow">
                    <div class="divInformationCellLabel">
                        Label4
                    </div>
                    <div class="divCellControl">
                        Control4
                    </div>
                </div>                
            </div>        
        </div>
        <div class="containerButtons">
            <div class="divButtonSection">
                OK
            </div>
            <div class="divButtonSection">
                Cancel
            </div>
        </div>
    </body>
    
</html>