Questions on UI for WinForms Forum

6 answers

259 views

Find if the user changed text using EditorRequired event handler

Hello,

I have a unique requirement where I have to find out if a user manually entered a value in the cell or the system generated it. For example, in a cell it shows 10 as the current value and if the user typed in 10 again, the application has to know if 10 is typed in by user or not.

The cells could have any value type and so I am changing the editor in radGridView1_EditorRequired(object sender, EditorRequiredEventArgs e). However, the handlers for the EditorElements are not being called when the user edits the cells. I am using RadComboBoxEditorElement, GridSpinEditorElement and RadTextBoxEditorElement.

private void radGridView1_EditorRequired(object sender, EditorRequiredEventArgs e)

{

var varModel = radGridView1.CurrentRow.Tag as VariableModel;

if (varModel.Variable != null)

{

var variableType = varModel.Variable.VariableType;

if (varModel.Variable.VariableSelectionValueCollection.Count > 0)

{

var selValCol = varModel.Variable.VariableSelectionValueCollection;

if (selValCol != null && selValCol.Count > 0) // if to be shown as a dropdown // todo: vsv fix

{

var editor = new RadComboBoxEditor();

var elem = editor.EditorElement as RadComboBoxEditorElement;

elem.DropDownWidth = radGridView1.Columns[STR_ValueCol].Width + radGridView1.Columns[STR_UnitsCol].Width;

elem.DropDownStyle = RadDropDownStyle.DropDownList;

elem.MaxDropDownItems = 10;

elem.DataSource = selValCol.Select(vs => vs.Description).ToList<string>();

editor.DropDownSizingMode = SizingMode.UpDownAndRightBottom;

//editor.ValueChanged += new EventHandler(editor_ValueChanged);

e.Editor = editor;

}

else if (variableType == VariableTypeEnum.Integer)

{

var editor = new GridSpinEditor();

var elem = editor.EditorElement as GridSpinEditorElement;

elem.MaxValue = int.MaxValue;

elem.MinValue = int.MinValue;

if (varModel.Variable.Val != null)

editor.Value = varModel.Variable.Val.ToInt32();

e.Editor = editor;

}

else if (variableType == VariableTypeEnum.Double) // todo : capture keys to exclude text

{

e.EditorType = typeof(RadTextBoxEditor);

var editor = new RadTextBoxEditor();

var elem = editor.EditorElement as RadTextBoxEditorElement;

//elem.TextChanging += new TextChangingEventHandler(Editor_TextChanging);

//elem.TextChanged += new EventHandler(elem_TextChanged);

if (varModel.Variable.Val != null)

editor.Value = varModel.Variable.Val.ToDouble();

e.Editor = editor;

}

else if (variableType == VariableTypeEnum.Boolean)

{

var editor = new RadComboBoxEditor();

var elem = editor.EditorElement as RadComboBoxEditorElement;

elem.Items.AddRange(new[] { new RadComboBoxItem("True"), new RadComboBoxItem("False") });

editor.Value = elem.Items.Where(ri => ri.Text.ToLower() == varModel.Variable.Val.Val.ToLower()).FirstOrDefault();

e.Editor = editor;

}

else if (variableType == VariableTypeEnum.String)

{

e.EditorType = typeof(RadTextBoxEditor);

var editor = new RadTextBoxEditor();

var elem = editor.EditorElement as RadTextBoxEditorElement;

//elem.TextChanged += new EventHandler(elem_TextChanged);

if (varModel.Variable.Val != null)

editor.Value = varModel.Variable.Val.ToString();

e.Editor = editor;

}

Thanks

GridView

answered on 25 Feb 2011

7 answers

399 views

[Solved] Cell color scrolling

Hi all,

I have need for a cell background color to change when the data changes in that cell.. Currently I have it working in the ValueChanged event and it works fine, but when I scroll, the cell color doesn't scroll with the rows.. I undersgtand this is due to the visual elements and that I should set the color in the RowFormatting event, however, I have no idea what the value is, and can not do "conditional formatting"... is there a way to know, in RowFormatting, that the cell has been changed?
Thanks,

Matt

My code to do this in CellValueChanged is:

void gvMain_CellValueChanged(object sender, GridViewCellEventArgs e)

{

GridDataCellElement ce = (GridDataCellElement)sender;

ce.BackColor = Color.LightPink;

ce.BackColor2 = Color.White;

ce.NumberOfColors = 2;

ce.DrawFill = true;

ce.GradientStyle = Telerik.WinControls.GradientStyles.Linear;

_dataDirty = true;

btnSave.Visible = true;

}

GridView

answered on 25 Feb 2011

1 answer

285 views

How to programatically select a specific tab?

Have been scratching my head a little over this one for a while, so I thought I would ask the question here on the forums!

If I have a radDock that has for example 3 tabs/documents in the DocumentManager, how would I programatically select one of the tabs?

I would have thought:

this.radDock1.DocumentManager.ActiveDocument = radDock1.DockWindows[1];

would be the way to go, but that property is read only.

I can't find anything in the documentation for this and boy, I wish you guys would comment all the methods and prcedures in the radDock library, so intellisense would give me a clue!

Thanks for the help,

Richard.

Dock

answered on 24 Feb 2011

2 answers

259 views

How to set current date in RadSchedular - Newbie

Hello,

When I switch Scheduler view from week to day, it showed me first date of the week not the current. (I am displaying one date in schedular, which is current date). How I scroll to current date without clicking Today button.

For example

In week View I am getting dates from Jan 16th to Jan 22nd and current date is Jan 18. When go to Day view it display Jan 16th not Jan 18

Thanks

Scheduler and Reminder

answered on 24 Feb 2011

21 answers

419 views

[Solved] gridview contextmenu Clear Value

HI

Please let me know any way to display ONLY 'Clear value' item , when right click on the radgridview cell.

Thank You

GridView

answered on 24 Feb 2011

3 answers

216 views

Date Time column filter

Hi
why the time part in an excel filter of a date time column is set to '12:00' for all?
Can any one resolve this for me.

GridView

answered on 24 Feb 2011

3 answers

188 views

[Solved] Gridview Unfiltered Rows

Hello,
I have looked and see that some people report that the isvisible property is true or false depending on whether the row is filtered.
I don't find this in my project.

I have a gridview that is bound to a datatable.
When the user filters the rows, we want to be able to iterate over the unfiltered rows and update a value in a cell.

Whenever I iterate over the gridview.rows collection, the gridviewrowinfo.isvisible is always true, regardless of filter state.

Can anyone point me to what I'm doing wrong?

Here is a snipit of code

Dim mCellPos As Integer = rgvItemsAndProps.CurrentCell.ColumnIndex

rgvItemsAndProps.BeginEdit()

For Each gr As GridViewRowInfo In rgvItemsAndProps.Rows

Dim y As String = gr.Cells(2).Value

If gr.IsVisible = True Then

gr.Cells(mCellPos).Value = _ItemPropGridClipboard

End If

Next

rgvItemsAndProps.EndEdit()

End If

GridView

answered on 24 Feb 2011

15 answers

674 views

[Solved] GridViewColumn: FieldName vs Name - Incorrect documentation or bug?

According to the documentation for the GridView control (v2010.3.10.1215):

Gets or sets the name data source property or database column to which the is bound.

Gets or sets a string value representing the column's unique name in the Columns collection of the .

However, the code below does not display the value for SQL field "ProjectTitle"

   GridViewTextBoxColumn1.FieldName = "ProjectTitle"
       GridViewTextBoxColumn1.HeaderText = "Title"
   GridViewTextBoxColumn1.Name = "Title"

Instead, I have to set the property Name to the SQL field. The property FieldName can be anything.

GridViewTextBoxColumn1.FieldName = "Foobar"
       GridViewTextBoxColumn1.HeaderText = "Title"
   GridViewTextBoxColumn1.Name = "ProjectTitle"

Can someone explain to me which is correct?

By the way, I am binding to a SQLDataReader and AutoGenerateColumns is false.

GridView

answered on 23 Feb 2011

9 answers

320 views

[Solved] radgridview.Rows.Add does not return the row number

Hello,

I have some code that worked up until Q2 2010 SP1, which no longer works in Q3 2010. RadGridView.Rows.Add(...) used to return the row index of the added row, but in Q3 2010 it returns -1.

I have a hierarchical GridView and the following code:

private void SetupRadGridviewRelation()

{

GridViewRelation selfRelation = new GridViewRelation(this.radGridView1.MasterTemplate, this.radGridView1.MasterTemplate);

selfRelation.ParentColumnNames.Add("IdCol");

selfRelation.ChildColumnNames.Add("ParentIdCol");

this.radGridView1.Relations.Add(selfRelation);

}

public void LoadVariables

{

foreach (var varModel in list)

{

var rowNum = radGridView1.Rows.Add(varModel.Id, varModel.ParentId, varModel.VarName, varModel.VarValue, varModel.VarUnits);

radGridView1.Rows[rowNum].Tag = varModel;

}

Does anybody know of a solution. Is this a bug in Q3 2010?

Thanks.

GridView

answered on 23 Feb 2011

7 answers

330 views

[Solved] How to set the default child template to show?

Hello

I was looking for a way to set the active (default) child template in hierarchical radGridView programmatically.

but I could not find any property to set that.

Is there a way to do that?

GridView

answered on 23 Feb 2011