GridWeb.ImportExcelFile throws exception "Object reference not set to an instance of an object"

Aspose.Cells Product Family
34

Hi,
I’ve tested the latest dll Aspose.Cells.GridWeb v2.5.0.2000. HTML parsing error is gone for IE. But sheet browsing isn’t possible now for all browsers:(. Loading message is showing for indefinite time if you try to browse any other sheet.

Thanks.
Wahid

35

Hi,

We have fixed two bugs in Aspose.Cells.GridWeb v2.5.0.2001.

1. unable to change worksheet in EnableAjax mode.

2. unable to submit changing worksheet with an editing cell all together in EnableAjax mode.

It works fine in IE and FireFox now. Please update the dll and acwmain.js files.

36

The issues you have found earlier (filed as 24155;24155) have been fixed in this update.

This message was posted using Notification2Forum from Downloads module by aspose.notifier.
37

The issues you have found earlier (filed as 24155;24155) have been fixed in this update.

This message was posted using Notification2Forum from Downloads module by aspose.notifier.
(1)
38

Hi,
I found an issue with the version 2.5.0.2001 that I’m using right now. If you load the attached excel file “CurrencyFormat.xlsx” with the project that I attached before, you’ll see that for each currency formatted cells the grid shows unnecessary token “_)” at the end of each cell value.

Thanks.
Wahid

39

Hi Wahid,

Yes, we noticed the issue you have talked about using your latest file “CurrencyFormat.xlsx”. I have reopened your issue “CELLSNET-24155” again, we will figure it out soon.

Thank you.

40

Hi,

Please try Aspose.Cells.GridWeb v2.5.0.2002 (attached). We have fixed the number formatting issue.

Thank you.

41

Hi,
I found my problem fixed into v2.5.0.2002.

Thank you.

42

The issues you have found earlier (filed as 24155) have been fixed in this update.

This message was posted using Notification2Forum from Downloads module by aspose.notifier.
43

Hi,
We’ve successfully integrated the grid component in our application and its already in live. We got an issue from one of our client. He faced problem in loading and working with the attached excel file. The page takes un-acceptable amount of time to load and sometime the browser hangs. Even if the page loaded successfully after several timeouts, user gets very annoying experience while editing cells.

The excel file contains formulae in the hidden sheet ‘ValidationData’.

Can you please investigate the issue ASAP?

Thanks.
Wahid

44

Hi,

I have tested to load your file to
GridWeb using our latest version v2.5.2.200x and found the issue as you have mentioned.

I have logged your issue with an id: CELLSNET-26523. We will look into it soon.

Thank you.

45

Hi,

We have tested “800 Entity.xls” using AutoExtendMaxRowColumn = false. The loading speed is faster.

Please refer to: https://forum.aspose.com/t/131989

Alternatively, you can try to use EnablePaging option.

We are implementing loading gridweb asynchronously. This will enhance the performance much on client side. It will take about 2-3 weeks.

Currently, you can try the options above.

46

Hi,

We have implemented the feature of loading data asynchronously in Aspose.Cells.GridWeb v2.5.3.2001. There is an attribute named “EnableAsync” to specify whether to enable to load data asynchronously.

Note: It is not available when using one of NoScroll, EnablePaging or DataBinding. You can fetch data via scrolling the vertical scroll bar on client side.

Please try the following lines to load your excel file:

C#

if (!IsPostBack)
{
GridWeb1.EnableAsync = true;
GridWeb1.AutoExtendMaxRowColumn = false;

string pathinfo = Request.PathInfo;

if (pathinfo.StartsWith("/"))
pathinfo = pathinfo.Substring(1);

if (pathinfo != “acw_ajax_call”)
{
GridWeb1.WebWorksheets.Clear();
GridWeb1.WebWorksheets.ImportExcelFile(@“c:\excel\800+Entity.xls”);
return;
}
}

Please update the dll and update acwmain.js into /acw_client virtual directory.
47

Hi,
I’ve tested the latest version Aspose.Cells.GridWeb v2.5.3.2001 in the attached project. It works nice now for big files though the CPU/Memory usage goes incredibly high for the W3P process while loading big files. But one burning issue returns which I solved before with the help of GridWeb client side API.

Issue Details: After loading an excel file in the grid, when a user is in editing mode in a cell, user clicks on a postback button, at the button postback event the edited data isn’t available. But after editing if the user press tab to navigate to adjacent cell and then press the button, the data is available.
Button Code:
<asp:Button ID=“btnSave” runat=“server” Text=“Save” OnClientClick=“UpdateGridData();” OnClick=“btnSave_Click” />

I solved the above issue by introducing the UpdateGridData() JS function:
function UpdateGridData() {
// get the grid
var grid = GetGrid();
if (grid) {
grid.updateData(false);
grid.validateAll();
}
}

It works fine with the older version Aspose.Cells.GridWeb+v2.5.0.2002. But it doesn’t with the latest version.

Please help urgent.

Thanks.
Wahid


48

Hi,

Thanks for reporting the problem.

I have logged your problem and comment in our database. We will fix it asap.

This issue has been logged as CELLSNET-28227.

Please also test it on latest version Aspose.Cells.GridWeb v2.5.3.2005 and let us know your feedback.

49

Hi,

The updateData() updates data asynchronously when using EnableAJAX.

The btnSave_Click postback event is fired early than updateData() on server side. So, we have to invoke updataData() synchronously on client side. The issue is resolved now.

Please modify ‘btnSave’ tag as:

ASP.NET

<!–[if gte mso 9]>
<w:WordDocument>
<w:View>Normal</w:View>
<w:Zoom>0</w:Zoom>
<w:TrackMoves/>
<w:TrackFormatting/>
<w:PunctuationKerning/>
<w:ValidateAgainstSchemas/>
<w:SaveIfXMLInvalid>false</w:SaveIfXMLInvalid>
<w:IgnoreMixedContent>false</w:IgnoreMixedContent>
<w:AlwaysShowPlaceholderText>false</w:AlwaysShowPlaceholderText>
<w:DoNotPromoteQF/>
<w:LidThemeOther>EN-US</w:LidThemeOther>
<w:LidThemeAsian>X-NONE</w:LidThemeAsian>
<w:LidThemeComplexScript>X-NONE</w:LidThemeComplexScript>
<w:Compatibility>
<w:BreakWrappedTables/>
<w:SnapToGridInCell/>
<w:WrapTextWithPunct/>
<w:UseAsianBreakRules/>
<w:DontGrowAutofit/>
<w:SplitPgBreakAndParaMark/>
<w:EnableOpenTypeKerning/>
<w:DontFlipMirrorIndents/>
<w:OverrideTableStyleHps/>
</w:Compatibility>
<m:mathPr>
<m:mathFont m:val=“Cambria Math”/>
<m:brkBin m:val=“before”/>
<m:brkBinSub m:val="–"/>
<m:smallFrac m:val=“off”/>
<m:dispDef/>
<m:lMargin m:val=“0”/>
<m:rMargin m:val=“0”/>
<m:defJc m:val=“centerGroup”/>
<m:wrapIndent m:val=“1440”/>
<m:intLim m:val=“subSup”/>
<m:naryLim m:val=“undOvr”/>
</m:mathPr></w:WordDocument>
<![endif]–><!–[if gte mso 10]> /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;}

<![endif]–>


<asp:LinkButton runat="server" ID="btnSave" style="display:none;" OnClick="btnSave_Click"></asp:LinkButton>


<input type="button" value="Save" onclick="UpdateGridData();">



And modify ‘UpdateGridData’ function as:

function UpdateGridData() {


var grid = GetGrid();


if (grid) {

var acp = grid.ajaxcallpath;


grid.ajaxcallpath = null; // disable EnableAJAX


grid.updateData(false);


grid.validateAll();


var btnSave = document.getElementById(“ctl00_mainContent_btnSave”);


btnSave.click();


grid.ajaxcallpath = acp; // restore EnableAJAX

} //if

}//Update

50

The issues you have found earlier (filed as 26523) have been fixed in this update.

This message was posted using Notification2Forum from Downloads module by aspose.notifier.
51

Hi,
It’s been long time since I post last. I’m currently using aspose.cells.gridweb licensed version 2.5.3.2001. Receiving some constant complains from our client:

  1. The page is too heavy due to the components script files even though the size of the excel is very small.
  2. Doesn’t works well in ajax mode and its buggy.
  3. Selecting one cell and then start editing, it doesn’t take the first key stroke as its for entering the cursor to the cell.

and few others…

I downloaded the latest trial version 2.7.6.2000. Is there any massive improvement on the latest build regarding the point mentioned above? If so I’m planning to buy the license ASAP.

Thanks.

Wahid

52

Hi,

Thanks for your posting.

We have fixed some of reported bugs which we will publish in a release notes when we will release a major version.

However, I will strongly recommend you to download and try the current latest version:
Aspose.Cells
for GridWeb v2.7.6.2003

Let us know your feedback.

53
wahid.choudhury:
Hi,
I'm now testing the new version you suggested. But I've one important query. GridWeb.ModifiedCells contains a collection of WebCell. Is there any way to get the corresponding sheet name of the modified webcell?

Thanks.
Wahid
Hi,

Please download and use the latest version: Aspose.Cells for GridWeb v2.7.7.2002

Please refer to this thread.
Is there any way to get the corresponding sheet name of the modified webcell?

For your newer issues, please create newer thread.