Questions on UI for WinForms Forum

1 answer

114 views

How to refer to the child gridview during export to PDF?

Hello,

Assuming I have a two levels hierarchical grid that is build dinamically where I don't know the number of the child grids and where the master template is different respect to the child template.

In order to export to pdf a gridview that contains child gridviews (hierarchical grid) I create an ExportToPDF object:

ExportToPDF exporter = new ExportToPDF(radGridView1);

exporter.HiddenColumnOption = Telerik.WinControls.UI.Export.HiddenOption.DoNotExport;

exporter.SummariesExportOption = SummariesOption.ExportAll;

exporter.FitToPageWidth = false;

exporter.Scale = 1;

exporter.FileExtension = "pdf";

exporter.TableBorderThickness = 1;

exporter.PdfExportSettings.EnableCopy = true;

exporter.HTMLCellFormatting += new Telerik.WinControls.UI.Export.HTML.HTMLCellFormattingEventHandler(exporter_HTMLCellFormatting);

exporter.ExportVisualSettings = true;

exporter.ExportHierarchy = true;

exporter.PdfExportSettings.FontType = Telerik.Apoc.Render.Pdf.FontType.Embed;

I need to format the cell value in the case it is type Decimal so I have added a new handle for the HTMLCellFormatting event:

void exporter_HTMLCellFormatting(object sender, Telerik.WinControls.UI.Export.HTML.HTMLCellFormattingEventArgs e)

{

if (radGridView1.Columns[e.GridColumnIndex].DataType == Type.GetType("System.Decimal"))

{

// Some code to manage the format

       //e.HTMLCellElement.Value = string.Format(ecc ecc)

}

In this event handler I need to retrieve the DataType of the current column and this code works perfectly if the current cell e.HTMLCellElement belongs to the master template in the hierarchical order. But when the current cell belongs to a child template it seems there is no way to retrieve the cell's column datatype because there is no way to retrieve what child gridview the cell belongs just starting from the "e" object.

So my question is: is there a way to understand if the indexe.GridColumnIndex refers to the MasterTemplate or if it refers to the Child Template inside the exporter_HTMLCellFormatting ?

Thanks for any aid,
Alcide

GridView

answered on 25 May 2011

2 answers

253 views

RadTreeNode Bounds property

How can I get node bounding rectangle? There is no BoundingRectangle or Bounds or smth like this in RadTreeViewNode class.

Treeview

answered on 25 May 2011

1 answer

167 views

Breaking changes with Grid in Q1 2011?

Did something change in the Q1 2011 release for datagrid that causes breaking changes?
I just upgraded today, fired up a project that has been compiling and working flawlessly and I'm getting a huge amount of compilation errors around the Grid control.

The main one that is significant is the following snippet:

GridViewDataColumn oColorName = new GridViewDataColumn();

oColorName.UniqueName = "ColorName";

oColorName.HeaderText = "Color Name";

radGridReport.Columns.Insert(6, oColorName);

I'm getting a red squiggly under the 'new GridViewDataColumn()' with the following error:
"Cannot create an instance of the abstract class or interface 'Telerik.WinControls.UI.GridViewDataColumn'"

GridView

answered on 24 May 2011

11 answers

1.7K+ views

RadGrid.Rows.Clear() doesn't work

RadGrid.Rows.Clear() doesn't work!? is there a bug?

thanks, andreas

GridView

answered on 24 May 2011

1 answer

333 views

MultiLine (Editorbox) RadDropDownList

Is there any way to make the editorbox Multiline.

The problem is some of my items (in the collection) are over two lines. When the two line item is selected the item appears in the editorbox - but only the first line appears. Is there any way to get the editorbox to show two or more lines.

Furthermore, is it possible to show the editorbox with the picture associated with the item?

Many thanks.

DropDownList

answered on 23 May 2011

2 answers

142 views

Bug Fixes Please - We need more stability in the Product

Hello!

I hope the Telerik team has learned their lesson with the disastrous releases of Q3 2010 and Q1 2011.
While I really would like to get the bugfixes, especially for the grid control,
I have not been able to integrate anything into production code since 2010Q2 due to showstoppers and missing functionality.

Please let the Q2 release be centered around bug fixing and not forcing half-baked new features or dubious refactorings on us.

Also I strongly urge you, not to remove bread-and-butter controls like treeview and replace them with obviously unfinished/untested refactorings. If you must refactor - and especially if the new control lacks functionality of the old one - please give us a chance to migrate our code over several telerik releases. You did that with the docking framework, why not with the very central treeview control?

Regards
Erwin

General Discussions

answered on 23 May 2011

3 answers

133 views

on demand loading - refresh and keeping state of treenodw

Hi,

in my app, I sometimes have to reload an unbound treeview because the underlying data changes. Now it would be nice to keep the state of the tree view (selected nodes, expanded state etc.) What's a good strategy to implement this?
I do have object identity information in an object in the Tag attribute, so I can find the logically identical nodes after a reload.
Thinking of maintaining maps of selected and expanded nodes so I can re-apply those attributes after reload. Is that a good idea?

I'm using demand loading for non-root nodes. Also I have to take into account, that there might be some nodes missing or additional nodes appearing at reload.
Has anybody implemented something similar?

Regards
Erwin

Treeview

answered on 23 May 2011

1 answer

160 views

RadForm different views

Hi,
I have a problem with the size of the radform.
I project the radforms with fixed size, but the dimension changes using different pc,
so sometime I can view all the objects in the radform, sometime in the bottom part,
some objects are visible only in part.
This is the layout parameters I use:

// Layout & appearance.
MaximizeBox = false;
MinimizeBox = false;
FormBorderStyle = FormBorderStyle.FixedDialog;
Size = new Size(589, 630);
ShowIcon = false;
ShowInTaskbar = false;
Text = " " + Application.ProductName;
ThemeName = "Dialog";
AutoScaleMode = AutoScaleMode.None;
BackgroundImage = resources.Icons.About;
BackgroundImageLayout = ImageLayout.Center;

I don't understand why the view has to change on different pc with the same video configuration.

thank you

Form

answered on 23 May 2011

1 answer

95 views

Tag is Nothing/null in NodeCheckChanged event

I am using the Tag property to store a DataRow for each node. It seems to work fine except for when I try to retrieve it in the NodeCheckChanged event where it is returned as nothing/null. If I iterate through the nodes and inspect the tag property, it is set properly. Has this been reported by anyone? I have a work around to just create a mirrored object to store my information in related by the absolute index of each node, but I would rather not do it that way.

TIA

Seth

Treeview