Questions on UI for WinForms Forum

2 answers

133 views

Hi!

Working with treeview I encountered some problems:

1. How can i override the default context menu methods (like add and delete)
2. My data structure is a decision tree made out of nodes, where each node has child nodes in an array. Is there an elegant way
to bind my data structure with the tree view?

Treeview

answered on 22 Mar 2011

8 answers

132 views

FindByTextCommand

I have a treeview and after adding a node, I want to select that node. The tree is databound. I am trying to implement the FindByTextCommand, but am having troubles. Can you supply sample code on the implementation.

Thanks

Treeview

answered on 22 Mar 2011

2 answers

119 views

row state won't change after commandcell click

I am using WinForms Q2 2010 SP2 (v2010.2.10.0914)

I have a form with a gridview and a save button outside gridview. The gridview has a commandcell column with dynamically generated command buttons to open another form. When the row gets modified, click the save button will save the grid data into database.

If I modified the data and clicked the commandcell button, without leaving the row, then click the save button outside gridview. It will stop working. It seems that the dataset bounded to the grid donsn't get the row state changed to modified.

My work around is to force the row change by setting Radgridview1.CurrentRow to first or last row in the save button click event. Wonder if this is a known issue. Is there any better solution. My work around will fail if there is only one row in the grid.

Thanks.

GridView

answered on 22 Mar 2011

6 answers

109 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

136 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

185 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

537 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

151 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

73 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

125 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