Questions on UI for WinForms Forum

6 answers

132 views

Drag a node from a treeview to something else.

I have a treeeview and I need to be able to remove a node from it by dragging the node out of the treeview and into a datagrid. I can't figure out how to start the drag and drop actions - what events are fired?

Can anybody help please?

TIA - Jeff.

Treeview

answered on 22 Mar 2011

2 answers

169 views

Ttreeview from dataset with 2 datatables

Requirements
RadControls version
.NET version
Visual Studio version
programming language
browser support	all browsers supported by RadControls

PROJECT DESCRIPTION
I have problems with Rad treeview:
I have a dataset that contains 2 datatables.
First table : Parent_ID , Parent_Text
Second table : Parent_ID, CHild_ID, Child_Text

DataColumn parentColumn = gl_dsLayerLOBsWIN.Tables["PriceLayerWin"].Columns["Layer"];

DataColumn childColumn = gl_dsLayerLOBsWIN.Tables["PriceLayerLOBWin"].Columns["Layer"];

DataRelation relation = new DataRelation("parent2Child", parentColumn, childColumn);

gl_dsLayerLOBsWIN.Tables[

"PriceLayerLOBWin"].ParentRelations.Add(relation);

radGridView_Layers.DataSource = gl_dsLayerLOBsWIN.Tables[

"PriceLayerWin"];

radTreeView_Layers.RelationBindings.Add(

new RelationBinding("PriceLayerWIN_PriceLayerLOBWIN", gl_dsLayerLOBsWIN));

radTreeView_Layers.DataSource = gl_dsLayerLOBsWIN;

Initially Dataset is empty. When I add a row to Parent datatable and a couple of rows to Child Datatable I see only first level node(s).... I do not see sublevels.
Could you , please help me with this.
I tried to use Gridview for this purpose also and tried to group it, but I still do not see any data for sublayers .. may be I'm missing something ...

Thank you ,
Victoria.

Treeview

answered on 22 Mar 2011

4 answers

213 views

Node.ShowCheckBox = false does not always work properly

I decided that it would be easier to control everything if I built my treeview by hand, one node at a time. I wanted to suppress checkbox display on all levels of the tree but the lowest level. However, even though I set ShowCheckBox = false for all levels, it does not suppress the checkboxes at the highest level of the tree. Otherwise, the tree renders perfectly. I tried setting tShowCheckBox to false for the lowest level, and that worked. Is this a bug, and if so, is there a workaround? Can anyone suggest how to make this work?

Here is the code:

private void BuildTreeFromBindingSourceData()

{

this.monitorRadTreeView.Nodes.Clear();

int companyBindingSourcePosition;

int plantCompanyBindingSourcePosition;

int equipmentPlantBindingSourcePosition;

RadTreeNode companyNode;

RadTreeNode plantNode;

RadTreeNode equipmentNode;

if (companyBindingSource.Count > 0)

{

companyBindingSourcePosition = 0;

while (companyBindingSourcePosition < companyBindingSource.Count)

{

companyBindingSource.Position = companyBindingSourcePosition;

companyNode = new RadTreeNode();

companyNode.Text = ((MonitorInterfaceDBDataSet.CompanyRow) ((DataRowView)companyBindingSource.Current).Row).Name;

companyNode.Tag = ((MonitorInterfaceDBDataSet.CompanyRow)((DataRowView)companyBindingSource.Current).Row).ID;

companyNode.ShowCheckBox = false;

if (plantCompanyBindingSource.Count > 0)

{

plantCompanyBindingSourcePosition = 0;

while (plantCompanyBindingSourcePosition < plantCompanyBindingSource.Count)

{

plantCompanyBindingSource.Position = plantCompanyBindingSourcePosition;

plantNode = new RadTreeNode();

plantNode.Text = ((MonitorInterfaceDBDataSet.PlantRow)((DataRowView)plantCompanyBindingSource.Current).Row).Name;

plantNode.Tag = ((MonitorInterfaceDBDataSet.PlantRow)((DataRowView)plantCompanyBindingSource.Current).Row).ID;

plantNode.ShowCheckBox = false;

if (equipmentPlantBindingSource.Count > 0)

{

equipmentPlantBindingSourcePosition = 0;

while (equipmentPlantBindingSourcePosition < equipmentPlantBindingSource.Count)

{

equipmentPlantBindingSource.Position = equipmentPlantBindingSourcePosition;

equipmentNode = new RadTreeNode();

equipmentNode.Text = ((MonitorInterfaceDBDataSet.EquipmentRow)((DataRowView)equipmentPlantBindingSource.Current).Row).Name;

equipmentNode.Tag = ((MonitorInterfaceDBDataSet.EquipmentRow)((DataRowView)equipmentPlantBindingSource.Current).Row).ID;

equipmentNode.ShowCheckBox = true;

plantNode.Nodes.Add(equipmentNode);

equipmentPlantBindingSourcePosition++;

}

companyNode.Nodes.Add(plantNode);

plantCompanyBindingSourcePosition++;

}

this.monitorRadTreeView.Nodes.Add(companyNode);

companyBindingSourcePosition++;

}

The binding sources, if you need to see them, look like:

companyBindingSource = new BindingSource();

companyBindingSource.DataSource = monitorInterfaceDBDataSet;

companyBindingSource.DataMember = "Company";

plantCompanyBindingSource = new BindingSource();

plantCompanyBindingSource.DataSource = companyBindingSource;

plantCompanyBindingSource.DataMember = "FK_Plant_Company";

equipmentPlantBindingSource = new BindingSource();

equipmentPlantBindingSource.DataSource = plantCompanyBindingSource;

equipmentPlantBindingSource.DataMember = "FK_Equipment_Plant";

Treeview

answered on 22 Mar 2011

5 answers

628 views

can i format a tree view text

Team,

can i format a tree view text like

my tree view node is like
---My String (1234)

so please tell me can i bold this 1234 if yes then please suggest How ?

Treeview

answered on 22 Mar 2011

3 answers

166 views

TriStateMode and checkboxes

Q1 2009 SP1 Winform RadTreeView

Why is it that 'node.Checked' doesn't seem to get evaluated when TriStateMode is False?

If TriStateMode is True 'node.Checked' gets evaluated as expected.

I'm trying to uncheck all checkboxes in my RadTreeView without using TriStateMode. Is there another approach I should be using (without using TriStateMode)?

Thanks,
Matt

Treeview

answered on 22 Mar 2011

2 answers

91 views

RadTreeView Don't appear in my interface

Hello,
I've created a radTreeView, i added the dataSource and the relationBindings.
But when i execute the application the treeView don't appear in my interface.
What do you think?

Thanks in advance

Treeview

answered on 22 Mar 2011

2 answers

143 views

Help with theming TreeView checkbox

Hi,

I'm trying to theme the RadTreeView to change the colours of the checkboxes. Currently, the tri-state checkbox turns red when in the indeterminate state. This is quite unusual as it is different to every other tri-state checkbox style out there, and the red draws unnecessary attention.

However it seems that whatever values I set for MiddleStateCheckColor and NormalStateCheckColor are ignored. Has anyone else successfully changed the indeterminate tri-state checkbox colour?

Treeview

answered on 22 Mar 2011

8 answers

386 views

Hierarchical Binding with lists

Hello

I am attempting to bind 3 tables of data to a Treeview using lists:

    
                        vwMarketTypex mtype = markettypecontroller.GetView(STR_MarketType, STR_TimePeriod);  
        
                        List<Symbol> currencies = Symbolcontroller.GetSymbolsByMarketType(mtype.MarketTypeID);  
        
                        List<Scenario> scenarios = senariocontroller.GetAllScenarios();  
        
                        List<RZEROMarketData.Data.RuleSet> rulesetsx = rscontroller.GetAllRulesets();  
        
                        radTreeView1.RootRelationDisplayName = "Curreny Pair";  
        
                        var newRelationBinding = new RelationBinding("Scenarios", scenarios, null, "ScenarioDescription", "ScenarioId");  
        
                        radTreeView1.RelationBindings.Add(newRelationBinding);  
        
                        var newRelationBinding1 = new RelationBinding("Rulesets", rulesetsx, null, "Name", "RulesetId");  
        
                        radTreeView1.RelationBindings.Add(newRelationBinding1);  
        
                        radTreeView1.DataSource = currencies;

The last object rulesetsx does not bind ..please can you advise if I am on the right track.

Thanks

Treeview

answered on 22 Mar 2011

2 answers

372 views

Put TreeView in a ComboBox in win forms?

I was wondering if it's possible to use a TreeView as the drop-down of a combo box in win forms like you can in ASP.NET?

Treeview

answered on 22 Mar 2011

4 answers

193 views

[Solved] Binding to Database Data

Hello,

i downloaded a trial version of your winforms 2009 / 2 for my future project and i am trying to understand this type of your product (i have experience with ASP.NET Controls)

But here I am not able to bind anything. I will need a treeview generated from database but when i am binding treeview step by step from your manual at http://www.telerik.com/help/winforms/tree_datadatabase.html and from your music collection database i have still empty form. At Visual Studio is everything fine - no errors or warnings, but when i debug that i have empty form. The same problem is with RadGrid, just columns name and no data. Display name i have defined. I really dont know what to do, bcs i tried everything what i know. I have Windows 7, VS 2005 SP1, .NET framework 3.5.

Thx for any help, i did not use C# so much.

Treeview

answered on 22 Mar 2011