Intersoft Community - WebGrid Enterprise - Webgrid - Unhandled Exception - Unable to communicate with server

Webgrid - Unhandled Exception - Unable to communicate with server

Glayaar — Thu, 12 Nov 2009 22:41:57 GMT

Attached is the sample I used to recreate the issue you are facing. I tried clicking the heading twice to sort the content, however I could not replicate the issue.

Regarding the delete, how do you invoke the snippet in your post? And how do you pass the retVal parameter to the function?

If you have not done so, please update your WebGrid 6 and WebUI Framework to the latest build to see if it is already solve the issue, the latest build is 218 and 705 respectively.

Webgrid - Unhandled Exception - Unable to communicate with server

jackbeaudry@gmail.com — Thu, 12 Nov 2009 10:36:38 GMT

Unhandled exception window described above opens when the delRow.Delete(); is executed on the client.

                var grid = ISGetObject("DocumentGrid");
                if (grid != null)
                {
                    var delRow = grid.RootTable.GetRowByKeyValue(retVal);
                    if (delRow != null)
                    {
                        delRow.Delete();
                    }
                }

Is there some link to data that I'm either not setting or setting incorrectly that the Webgrid control needs to communicate to the server. Or is this a Help issue and it's trying to contact Intersoft Help?

Webgrid - Unhandled Exception - Unable to communicate with server

jackbeaudry@gmail.com — Wed, 11 Nov 2009 22:57:37 GMT

Under a couple different scenarios, my users are seeing a window open with the title: WebGrid.NET Enterprise Version 6.0

Unhandled Exception

Unable to communicate with server.

This occurs when the user clicks the same heading twice to sort the contents of the Webgrid.

This also occurs when the user deletes to rows or the last rows in a grid.

Any clues of what I might be doing wrong or what might cause this?

Using C#, ASP.NET, Webgrid is in a user control. Straightforward grid, not heirarchical. Just display a number of rows

<ISWebGrid:WebGrid ID="DocumentGrid" runat="server" Height="200px" UseDefaultStyle="true"

Width="800px" OnInitializeRow="DocumentGrid_InitializeRow" OnDeleteRow="DocumentGrid_DeleteRow" >

</LayoutSettings>

<RootTable DataKeyField="DOCUMENT_ID" AllowColumnMove="No"

AllowSelectColumns="No" AllowSorting="Yes" AutomaticSort="true" RowHeaderWidth="0">

<ISWebGrid:WebGridColumn DataMember="DOCUMENT_VIEWER" Name="Icon" Caption="Type"

Width="20px" ColumnType="Image" >

</ISWebGrid:WebGridColumn>

<ISWebGrid:WebGridColumn Caption="Description" DataMember="UPLOAD_DESCRIPTION" Name="Description"

Width="100%" ColumnType="HyperLink" AllowSorting="Yes" >

</ISWebGrid:WebGridColumn>

<ISWebGrid:WebGridColumn Caption="Filename" DataMember="FILENAME" Name="Filename" AllowSorting="Yes" Visible="false"

</ISWebGrid:WebGridColumn>

<ISWebGrid:WebGridColumn Caption="Date" DataMember="CREATION_DATE" Name="Date" AllowSorting="Yes"

Width="150px">

</ISWebGrid:WebGridColumn>

<ISWebGrid:WebGridColumn Caption="Type" DataMember="DOCUMENT_TYPE_NAME" Name="Type" AllowSorting="Yes"

Width="150px">

</ISWebGrid:WebGridColumn>

<ISWebGrid:WebGridColumn Caption="Web Access" Name="WebAccess" DataMember="WEB_ACCESS" AllowSorting="Yes"

Width="75px" ColumnType="ImageAndText">

</ISWebGrid:WebGridColumn>

<ISWebGrid:WebGridColumn Caption="Delete" Name="Delete" Width="50px" AllowSorting="No" ColumnType="Image" >

</ISWebGrid:WebGridColumn>

</Columns>

</RootTable>

</ISWebGrid:WebGrid>