Questions on UI for WinForms Forum

1 answer

113 views

Simple question that I was not quite able to find an answer to...
I have a binding list collection of Person objects. Each Person object has a collection of Person objects. For example, everyone is a person. Some persons have children. They are persons. They can have kids, and so on and so on.

I bound this to a tree view but only got the first level of items. I then added ParentMember and ChildMember values - these are used for a simple collection as compared to my hierarchy of same nodes thus it did not work. I then tried to use the Object Relation mode and specified a display value that hit the first level of nodes and then went to the second level - "PersonName\\PersonName". I did the same with the ValueMember. Great, I now got two levels of tree control.

The question is how to get N levels? Do I do something like "PersonName\\*" in an attempt to tell it to repeat? Do I need to do this manually rather than binding?

And lastly, I did read that Drag And Drop will NOT work with bound Trees. If that is the case then I will do all of this work manually - I would think that you could support drag and drop but would have to rely on my code to actually do the movement of the actual data structure.

Treeview

answered on 22 Nov 2012

4 answers

777 views

GridViewDecimalColumn.DecimalPlaces

I have a RadGridView with a GridViewDecimalColumn. A row has the value of 51.34. I set the DecimalPlaces property to 0 but the value still displays as 51.34. Should this not display as 51?

GridView

answered on 22 Nov 2012

2 answers

203 views

RadDock without visible border

I have set my RadDock MainDocumentContainerVisible = false and BorderStyle = none. But there is still a borderline on the left and top. If I set the BorderStyle to FixedSingle, the whole thing has a border, but the Left and Top still have an extra wide border. What is causing this?

Thanks,

G

Dock

answered on 21 Nov 2012

1 answer

104 views

Telerik GridView

I have radgridview with data written in design time i.e, code
this.radGridView1.Rows.Add("Jjkh", 19, 2, 9, 12, 21,52, 44, 63,56, System.DateTime.Now);
            this.radGridView1.Rows.Add("Jjkh", 10, 2, 9, 12, 21, 52, 44, 63, 87, System.DateTime.Now);
            this.radGridView1.Rows.Add("eur", 16, 2, 9, 12, 21, 52, 44, 63, 34, System.DateTime.Now);
            this.radGridView1.Rows.Add("usd", 14, 2, 9, 12, 21, 52, 44, 63, 23, System.DateTime.Now);
            this.radGridView1.Rows.Add("Jjkh", 67, 81, 33, 4, 55, 66, 7, 7, 11, System.DateTime.Now);
After this i've written code for forecolor:
for (int i = 0; i < radGridView1.Rows.Count; i++)
            {
                for (int j = 1; j < 4; j++)
                    this.radGridView1.Rows[i].Cells[j].Style.ForeColor = System.Drawing.Color.White;
                this.radGridView1.Rows[i].Cells[4].Style.ForeColor = System.Drawing.Color.Blue;
                this.radGridView1.Rows[i].Cells[5].Style.ForeColor = System.Drawing.Color.Red;

            }
But for back color, i've written in radGridView1_CellFormatting,
e.CellElement.BackColor = Color.Blue;
But the event radGridView1_CellFormatting is not binding with any method..

GridView

answered on 21 Nov 2012

5 answers

534 views

Set Row Header

Prior to using RadGridView, i made use of the new DataGridView in .NET 2.0.

consider the code below, where i successfully populate the row headers:

string[] userInputParams = new string[] {"apples","oranges",
                                                              "mangos",
                                                              "guanábana"}
for (int i = 0; i < userInputParams.Length; i++)
{
                gridRows.Add();
                gridRows[i].HeaderCell.Value = userInputParams[i];
}

How would i acheive this with the telerik RadGridView winform control?

thank you

GridView

answered on 21 Nov 2012

1 answer

278 views

Bold and Italic Text

Hi,

I've noticed that you can check whether the selected font in the richtextbox is bold or italic, but not whether it is both bold and italic. Checking for bold or italic can be done likeso:

Dim style As StyleDefinition = SelectedEditor.CurrentEditingStyle

Dim fontWeight As TextStyle = DirectCast(style.GetPropertyValue(Span.FontStyleProperty), TextStyle)

btnFontBold.Checked = fontWeight = TextStyle.Bold

If fontWeight = TextStyle.Bold Then

btnFontBold.Checked = True

ElseIf fontWeight = TextStyle.Italic Then

btnFontItalic.Checked = True

End If

However, I cannot seem to find a way to check for both bold and italic text, as the only members of TextStyle are Bold, Italic, and Regular. Is there a way to do this?

RichTextBox (obsolete as of Q3 2014 SP1)

answered on 21 Nov 2012

1 answer

191 views

How to save/load location and size of controls on RadForm

Hi,

I have several grids on RadForm. I want to resize grids and columns for the next time.
How I can do it.

Thank you for advance

Form

answered on 21 Nov 2012

5 answers

173 views

RadTreeNodeComparer

Hi, I'm starting developing with Telerik WinForms and WebForms controls. First of all, I'm changin' a System TreeView for a Telerik TreeView. I wasn't hard, but, in my last Tree, I had one property for sort a custom level of the tree. I'd make a class NodeComparer that implements IComparer. Now, in Telerik, I read that this property is called RadTreeNodeComparer, and needs a class that implements IComparer<RadTreeNode>.

So, the code is like this:
UIPresentationTree.RadTreeNodeComparer = new NodeSorter();

Nothing happens, and the tree don't sort anything. What's wrong?

thanks.

Treeview

answered on 21 Nov 2012

1 answer

344 views

Hierarchy grid child rows do not apply changes to data bound objects.

I am binding objects to a hierarchy grid in code and when a change is made a child row the change is shown in the grid, however, the underlying data object is not updated. I can manually apply the new value after edit to the object, but it seems like grid should be doing this for me.

public partial class Form1 : Form

{

private BindingList<Node> AllNodes = new BindingList<Node>();

public Form1()

{

InitializeComponent();

}

private void Form1_Load(object sender, EventArgs e)

{

LoadData();

}

public void LoadData()

{

LoadAllNodes();

grid.DataSource = AllNodes;

LoadAllObjectColumns(grid.MasterTemplate);

// Load child template

GridViewTemplate template = new GridViewTemplate();

LoadAllObjectColumns(template);

grid.MasterTemplate.Templates.Add(template);

GridViewRelation r = new GridViewRelation(grid.MasterTemplate, template);

r.ChildColumnNames.Add("Children");

grid.Relations.Add(r);

}

public void LoadAllNodes()

{

Node p1 = new Node("Parent 1", ItemStatus.None);

Node n1 = new Node("Child 1", ItemStatus.None);

Node n2 = new Node("Child 2", ItemStatus.None);

p1.Children.Add(n1);

p1.Children.Add(n2);

AllNodes.Add(p1);

Node p2 = new Node("Parent 2", ItemStatus.None);

AllNodes.Add(p2);

}

public static void LoadAllObjectColumns(GridViewTemplate template)

{

template.Columns.Clear();

template.EnableFiltering = true;

template.AllowAddNewRow = false;

template.AutoGenerateColumns = false;

GridViewTextBoxColumn colName = new GridViewTextBoxColumn("Name");

colName.HeaderText = "Name";

colName.Name = "Name";

template.Columns.Add(colName);

GridViewComboBoxColumn colStatus = new GridViewComboBoxColumn("Status");

colStatus.HeaderText = "Status";

colStatus.Name = "Status";

colStatus.DataSource = Enum.GetValues(typeof(ItemStatus)).Cast<ItemStatus>();

template.Columns.Add(colStatus);

template.AutoSizeColumnsMode = GridViewAutoSizeColumnsMode.Fill;

}

public enum ItemStatus { None, New, Test, Complete };

public class Node : INotifyPropertyChanged

{

public event PropertyChangedEventHandler PropertyChanged;

protected void NotifyPropertyChanged(String info)

{

if (PropertyChanged != null)

{

PropertyChanged(this, new PropertyChangedEventArgs(info));

}

private string name;

private ItemStatus status;

private BindingList<Node> children;

public string Name

{

get

{

return name;

}

set

{

if (name != value)

{

name = value;

NotifyPropertyChanged("Name");

}

public ItemStatus Status

{

get

{

return status;

}

set

{

if (status != value)

{

status = value;

NotifyPropertyChanged("Status");

}

public BindingList<Node> Children

{

get

{

return children;

}

set

{

children = value;

}

public Node(string name, ItemStatus status)

{

this.name = name;

this.status = status;

children = new BindingList<Node>();

}

GridView

answered on 21 Nov 2012

1 answer

127 views

operator & not defined for string "select...." and data rowview

i have 2 ddls and i want to populate the second one based on the value of the first one. so i went on to use a row filter to filter the data view to get the data i need on the second ddl but when the page loads i get the error operator & not defined for string "Select distinct Zones....." and data row view. i click ok on the dialog error box to close it and it goes on to open the form and the code actually works. so how do i get rid of the error

cmd.CommandText = "Select Distinct Zones.ZoneID,CustomerItems.CustomerID as CustomerID,Zones.Zone " & _
"From CustomerItems Inner Join Zones On Zones.ZoneID=CustomerItems.ZoneID " & _
"Inner Join StockItems On StockItems.StockID=CustomerItems.StockID Where CustomerItems.CustomerID='" & ddlCustomers.SelectedValue & "'"
da = New SqlDataAdapter(cmd)
da.Fill(ds, "Zones")

'Populate Zones
ddlZone.DisplayMember = "Zone"
ddlZone.ValueMember = "ZoneID"
ddlZone.DataSource = ds.Tables("Zones")

setup = False
If Not setup Then
Dim dv As DataView
dv = New DataView(ds.Tables("Zones"))
'dv.RowFilter = "CustomerID = '" & ddlCustomers.SelectedValue & "'"
dv.RowFilter = "[CustomerID] = " & ddlCustomers.SelectedValue
ddlZone.DataSource = dv
ddlZone.ValueMember = "ZoneID"
ddlZone.DisplayMember = "Zone"
setup = False
End If

DropDownList

answered on 21 Nov 2012