Questions on UI for WPF Forum

1 answer

192 views

[Solved] WPF RadScheduleView GroupHeader

How do I change the color under the dates?

I tried to change colors in all sorts of styles but could not find which style was responsible for it

Would appreciate help

ScheduleView

answered on 11 Apr 2022

0 answers

130 views

The RadGirdView of the child form does not display the content of the parent form

Use RadGridView and RadDropDownList controls to create the user control of the parent form, and then create a sub-form user control named AbutBodyMtdPageBase to inherit the parent form, and create a new UserControl named AbutBodyTpMtdPage, and then drag the sub-form user control of AbutBodyMtdPageBase to enter AbutBodyTpMtdPage, create a new Form form, drag AbutBodyTpMtdPage into the Form, and the RadGridView form does not display data during program execution.
The above descriptions are all created user controls, and finally a new Form is created.

GridView

updated question on 11 Apr 2022

0 answers

144 views

TreeList Item not always added

Hello,

I've a strange issue with a treelistview.

Only when the scrollbar is at the bottom, add a new item is not "detected" (works fine 1 /2 times and break after..., scroll to another position and add a new item works fine).

I can't reproduce the issue with an external basic "sample" , (and the issue is reproduced only for one of the two instance I have)

Basically is something like this:

public class ViewModel
{
   ObservableCollection<ItemToAdd> Items;

   void OnNewItems(ICollection<ItemToAdd> newitems)
   {
      Foreach(item in newitems)
      {
         var parentNode  = Items.where( x => x = newitem)
         parentNode?.Children.Add(item)
      }
   }
}

publicclassItemToAdd
{
   ObservableCollection <ItemToAdd> Childrens
}

<telerik:RadTreeListView x:Name="Tree"
                                 ItemsSource="{Binding Items}"
                                 CanUserFreezeColumns="False" 
                                 RowIndicatorVisibility="Collapsed" 
                                 ColumnWidth="auto" 
                                 AutoGenerateColumns="False" 
                                 IsDragDropEnabled="True"
                                 IsDropPreviewLineEnabled="False"
                                 ShowColumnHeaders="True"
                                 RowStyle="{StaticResource RowStyle}" 
                                 SelectionMode="Extended" 
                                 GridLinesVisibility="None"
                                 IsExpandedBinding="{Binding IsExpandedInTree, Mode=TwoWay}"">

...

            <telerik:RadTreeListView.ChildTableDefinitions>
                <telerik:TreeListViewTableDefinition ItemsSource="{Binding Children}" />
            </telerik:RadTreeListView.ChildTableDefinitions>
        </telerik:RadTreeListView>

Here my tree is like this:

> Main node
    > Sub Node level 1
         >Sub Node level 2
         >Sub Node level 2
    > Sub Node level 1
         >Sub Node level 2
         >Sub Node level 2
    > Sub Node level 1
         >Sub Node level 2
         >Sub Node level 2

It seems that disabling Virtualization solve the issue but I don't want to do this.

Any idea?

Thanks!!

TreeListView

asked on 08 Apr 2022

1 answer

215 views

[Solved] Adding Shapes to Document editor

Hi,

In our project we have a document editor that borrows from the code of the telerik editor found here: https://github.com/telerik/xaml-sdk/blob/master/RichTextBox/TelerikEditor/TelerikEditor.xaml. After the release allowing shapes to be added we have been receiving requests to add the ability for the use to input shapes using the our editor in the same way it is shown here: https://docs.telerik.com/devtools/wpf/controls/radrichtextbox/features/shapes/shapes. After a lot of searching through forums and the documentation on shapes I have found no way to implement this feature. Could someone advise me on how to add the shapes dropdown to the ribbon of the editor, and whether or not that is all the code I will need to allow a user to add/manipulate the predefined shapes? The documentation says that "In the Insert tab, you will find a list containing various predefined shapes you can choose between". I haven't found a way to add this to our editor or even where it resides in the telerik editor. Any help would be greatly appreciated.

RibbonView and RibbonWindow

RichTextBox

answered on 08 Apr 2022

1 answer

414 views

How to control row details visibility mode on a per row basis based on a binding

Hi,

I have created a gridview with a rowdetail that uses the rowdetailstemplateselector to show a different row depending on an itemsource property. I would like to control rowdetailsvisibiltiy based on a property of the item. Is there an example for this and or could you point me to what event I would need to use to control the the rowdetailsvisiblity on a per row basis?

Thanks

Rob

GridView

answered on 08 Apr 2022

1 answer

155 views

[Solved] Syntax editor multiple tooltips

Tried extending the a custom tooltip tagger to recognize multiple words/tooltips but no luck. Below is my custom tooltip tagger, any thoughts on where I am going wrong?

using System.Collections.Generic;
using Telerik.Windows.SyntaxEditor.Core.Editor;
using Telerik.Windows.SyntaxEditor.Core.Tagging;
using Telerik.Windows.SyntaxEditor.Core.Text;

namespace QuickMeasuresPro
{
    class DAXTooltipTagger : TaggerBase<ToolTipTag>
    {
        private string searchWord;

        private static readonly string[] Keywords = new string[]
        {
            "APPROXIMATEDISTINCTCOUNT","AVERAGE","AVERAGEA","AVERAGEX"
        };

        private static readonly string[] Tooltips = new string[]
        {
            "APPROXIMATEDISTINCTCOUNT(<columnName>)\r\nReturns the approximate number of rows that contain distinct values in a column.",
            "AVERAGE(<column>)\r\nReturns the average (arithmetic mean) of all the numbers in a column.",
            "AVERAGEA(<column>)\r\nReturns the average (arithmetic mean) of the values in a column.",
            "AVERAGEX(<table>,<expression>)\r\nCalculates the average (arithmetic mean) of a set of expressions evaluated over a table.",
        };

        public DAXTooltipTagger(ITextDocumentEditor editor)
            : base(editor)
        {
        }

        public override IEnumerable<TagSpan<ToolTipTag>> GetTags(NormalizedSnapshotSpanCollection spans)
        {
            if (string.IsNullOrEmpty(this.searchWord))
            {
                yield break;
            }

            TextSnapshot snapshot = this.Document.CurrentSnapshot;
            foreach (TextSnapshotSpan snapshotSpan in spans)
            {
                string lineString = snapshotSpan.GetText();
                int i = 0;
                foreach (string keyword in Keywords)
                {
                    string tooltip = Tooltips[i];
                    i++;
                    int index = lineString.IndexOf(keyword);
                    while (index != -1)
                    {
                        TextSnapshotSpan tempSnapshotSpan = new TextSnapshotSpan(snapshot,
                            new Span(snapshotSpan.Start + index, keyword.Length));

                        yield return new TagSpan<ToolTipTag>(tempSnapshotSpan, new ToolTipTag(tooltip));

                        index = lineString.IndexOf(keyword, index + keyword.Length);
                    }
                }
            }
        }

        public void UpdateSearchWord(string newSearchWord)
        {
            this.searchWord = newSearchWord;
            this.CallOnTagsChanged(this.Document.CurrentSnapshot.Span);
        }
    }
}

SyntaxEditor

answered on 08 Apr 2022

1 answer

210 views

[Solved] Use MultilineTags in Custom Tagger

Implementing a custom tagger for SyntaxEditor control for DAX code and want to implement the MultilineTags for comments /* */.

Below is my custom tagger, how would I implement MultilineTags for this?

    public class DAXTagger : WordTaggerBase    
    {
        private static readonly string[] Keywords = new string[]
        {
            "APPROXIMATEDISTINCTCOUNT","AVERAGE","AVERAGEA","AVERAGEX","COUNT","COUNTA","COUNTAX","COUNTBLANK","COUNTROWS",
            "COUNTX","DISTINCTCOUNT","DISTINCTCOUNTNOBLANK","MAX","MAXA","MAXX","MIN","MINA","MINX","PRODUCT","PRODUCTX","SUM","SUMX",
            "CALENDAR","CALENDARAUTO","DATE","DATEDIFF","DATEVALUE","DAY","EDATE","EOMONTH","HOUR","MINUTE","MONTH","NOW","QUARTER",
            "SECOND","TIME","TIMEVALUE","TODAY","UTCNOW","UTCTODAY","WEEKDAY","WEEKNUM","YEAR","YEARFRAC",
            "ALL","ALLCROSSFILTERED","ALLEXCEPT","ALLNOBLANKROW","ALLSELECTED","CALCULATE","CALCULATETABLE","EARLIER","EARLIEST",
            "FILTER","KEEPFILTERS","LOOKUPVALUE","REMOVEFILTERS","SELECTEDVALUE","ACCRINT","ACCRINTM","AMORDEGRC","AMORLINC","COUPDAYBS",
            "COUPDAYS","COUPDAYSNC","COUPNCD","COUPNUM","COUPPCD","CUMIPMT","CUMPRINC","DB","DDB","DISC","DOLLARDE","DOLLARFR",
            "DURATION","EFFECT","FV","INTRATE","IPMT","ISPMT","MDURATION","NOMINAL","NPER","ODDFPRICE","ODDFYIELD","ODDLPRICE",
            "ODDLYIELD","PDURATION","PMT","PPMT","PRICE","PRICEDISC","PRICEMAT","PV","RATE","RECEIVED","RRI","SLN","SYD","TBILLEQ",
            "TBILLPRICE","TBILLYIELD","VDB","XIRR","XNPV","YIELD","YIELDDISC","YIELDMAT","CONTAINS","CONTAINSROW","CONTAINSSTRING",
            "CONTAINSSTRINGEXACT","CUSTOMDATA","HASONEFILTER","HASONEVALUE","ISAFTER","ISBLANK","ISCROSSFILTERED","ISEMPTY","ISERROR",
            "ISEVEN","ISFILTERED","ISINSCOPE","ISLOGICAL","ISNONTEXT","ISNUMBER","ISODD","ISONORAFTER","ISSELECTEDMEASURE","ISSUBTOTAL",
            "ISTEXT","NONVISUAL","SELECTEDMEASURE","SELECTEDMEASUREFORMATSTRING","SELECTEDMEASURENAME","USERNAME","USEROBJECTID",
            "USERPRINCIPALNAME","AND","BITAND","BITLSHIFT","BITOR","BITRSHIFT","BITXOR","COALESCE","FALSE","IF","IF.EAGER","IFERROR",
            "NOT","OR","SWITCH","TRUE","ABS","ACOS","ACOSH","ACOT","ACOTH","ASIN","ASINH","ATAN","ATANH","CEILING","CONVERT","COS",
            "COSH","COT","COTH","DEGREES","DIVIDE","EVEN","EXP","FACT","FLOOR","GCD","INT","ISO.CEILING","LCM","LN","LOG",
            "LOG10","MROUND","ODD","PI","POWER","QUOTIENT","RADIANS","RAND","RANDBETWEEN","ROUND","ROUNDDOWN","ROUNDUP","SIGN","SIN",
            "SINH","SQRT","SQRTPI","TAN","TANH","TRUNC","BLANK","ERROR","PATH","PATHCONTAINS","PATHITEM","PATHITEMREVERSE","PATHLENGTH",
            "CROSSFILTER","RELATED","RELATEDTABLE","USERELATIONSHIP","BETA.DIST","BETA.INV","CHISQ.DIST","CHISQ.DIST.RT","CHISQ.INV",
            "CHISQ.INV.RT","COMBIN","COMBINA","CONFIDENCE.NORM","CONFIDENCE.T","EXPON.DIST","GEOMEAN","GEOMEANX","MEDIAN","MEDIANX",
            "NORM.DIST","NORM.INV","NORM.S.DIST","NORM.S.INV","PERCENTILE.EXC","PERCENTILE.INC","PERCENTILEX.EXC","PERCENTILEX.INC",
            "PERMUT","POISSON.DIST","RANK.EQ","RANKX","SAMPLE","STDEV.P","STDEV.S","STDEVX.P","STDEVX.S","T.DIST","T.DIST.2T",
            "T.DIST.RT","T.INV","T.INV.2t","VAR.P","VAR.S","VARX.P","VARX.S","ADDCOLUMNS","ADDMISSINGITEMS","CROSSJOIN","CURRENTGROUP",
            "DETAILROWS","DISTINCT column","DISTINCT table","EXCEPT","FILTERS","GENERATE","GENERATEALL","GENERATESERIES",
            "GROUPBY","IGNORE","INTERSECT","NATURALINNERJOIN","NATURALLEFTOUTERJOIN","ROLLUP","ROLLUPADDISSUBTOTAL","ROLLUPISSUBTOTAL",
            "ROLLUPGROUP","ROW","SELECTCOLUMNS","SUBSTITUTEWITHINDEX","SUMMARIZE","SUMMARIZECOLUMNS","Table Constructor","TOPN",
            "TREATAS","UNION","VALUES","COMBINEVALUES","CONCATENATE","CONCATENATEX","EXACT","FIND","FIXED","FORMAT","LEFT","LEN",
            "LOWER","MID","REPLACE","REPT","RIGHT","SEARCH","SUBSTITUTE","TRIM","UNICHAR","UNICODE","UPPER","VALUE",
            "CLOSINGBALANCEMONTH","CLOSINGBALANCEQUARTER","CLOSINGBALANCEYEAR","DATEADD","DATESBETWEEN","DATESINPERIOD","DATESMTD",
            "DATESQTD","DATESYTD","ENDOFMONTH","ENDOFQUARTER","ENDOFYEAR","FIRSTDATE","FIRSTNONBLANK","LASTDATE","LASTNONBLANK",
            "NEXTDAY","NEXTMONTH","NEXTQUARTER","NEXTYEAR","OPENINGBALANCEMONTH","OPENINGBALANCEQUARTER","OPENINGBALANCEYEAR",
            "PARALLELPERIOD","PREVIOUSDAY","PREVIOUSMONTH","PREVIOUSQUARTER","PREVIOUSYEAR","SAMEPERIODLASTYEAR","STARTOFMONTH",
            "STARTOFQUARTER","STARTOFYEAR","TOTALMTD","TOTALQTD","TOTALYTD",
            "BOOLEAN","CURRENCY","DATETIME","DOUBLE","INTEGER","STRING"
        };

        private static readonly string[] Comments = new string[]
        {
        "//", "--", "/*", "*/"
        };

        private static readonly string[] Operators = new string[]
        {
        "+", "-",  "*", "/", "^", "&", "|", "&&", "||"
        };

        public static readonly ClassificationType Keywords1ClassificationType = new ClassificationType("Keywords1");

        private static readonly string[] Keywords1 = new string[]
        {
        "VAR", "RETURN", "DATATABLE"
        };

        private static readonly Dictionary<string, ClassificationType> WordsToClassificationType = new Dictionary<string, ClassificationType>();

        static DAXTagger()
        {
            WordsToClassificationType = new Dictionary<string, ClassificationType>();

            foreach (var keyword in Keywords)
            {
                WordsToClassificationType.Add(keyword, ClassificationTypes.Keyword);
            }

            foreach (var preprocessor in Operators)
            {
                WordsToClassificationType.Add(preprocessor, ClassificationTypes.Operator);
            }

            foreach (var comment in Comments)
            {
                WordsToClassificationType.Add(comment, ClassificationTypes.Comment);
            }

            foreach (var comment in Keywords1)
            {
                WordsToClassificationType.Add(comment, Keywords1ClassificationType);
            }
        }

        public DAXTagger(Telerik.Windows.Controls.RadSyntaxEditor editor)
          : base(editor)
        {
        }

        protected override Dictionary<string, ClassificationType> GetWordsToClassificationTypes()
        {
            return DAXTagger.WordsToClassificationType;
        }

        protected override bool TryGetClassificationType(string word, out ClassificationType classificationType)
        {
            int number;

            if (int.TryParse(word, out number))
            {
                classificationType = ClassificationTypes.NumberLiteral;
                return true;
            }

            return base.TryGetClassificationType(word, out classificationType);
        }

        protected override IList<string> SplitIntoWords(string value)
        {
            List<string> words = new List<string>();
            string word;
            int lastCharType = -1;
            int startIndex = 0;

            for (int i = 0; i < value.Length; i++)
            {
                int charType = GetCharType(value[i]);
                if (charType != lastCharType)
                {
                    word = value.Substring(startIndex, i - startIndex);
                    words.Add(word);
                    startIndex = i;
                    lastCharType = charType;
                }
                else if (value[i] == '#' && value[i - 1] == '#')
                {
                    word = value.Substring(startIndex, i - startIndex);
                    words.Add(word);
                    startIndex = i;
                    lastCharType = charType;
                }
            }

            word = value.Substring(startIndex, value.Length - startIndex);
            words.Add(word);

            return words;
        }

        internal static int GetCharType(char c)
        {
            if (c == '#' || c == '_')
            {
                return 3;
            }

            if (char.IsWhiteSpace(c))
            {
                return 1;
            }

            if (char.IsPunctuation(c) || char.IsSymbol(c))
            {
                return 2;
            }

            return 0;
        }
    }
}

SyntaxEditor

answered on 08 Apr 2022

0 answers

202 views

Field not found: Telerik.Windows.Controls.ThemeManager.DefaultThemeName

I was using telerik controls with version 2020.2.617.45 and everything works fine, but when I updated Telerik.Windows.Data, Telerik.Windows.Controls and Telerik.Windows.controls.Data dll`s to version 2022.1.222.45 I got error in my custom behaviour at this row:

private void AssociatedObject_GotFocus(object sender, RoutedEventArgs e)
{
RadGridView gridView = sender as RadGridView;

if (gridView != null && gridView.CurrentCell != null && !gridView.CurrentCell.IsInEditMode && !gridView.CurrentCell.Column.IsReadOnly)
gridView.CurrentCell.BeginEdit();
}

when I call gridView.CurrentCell.BeginEdit(); and I got error :System.MissingFieldException: 'Field not found: 'Telerik.Windows.Controls.ThemeManager.DefaultThemeName'.'

The problem occured after update.

GridView

asked on 06 Apr 2022

1 answer

210 views

How do I control the alignment of RadSplitButton's dropdown content frame?

I've got a RadSplitButton. I want the dropdown's content frame to be aligned on the left, along with the left edge of the main button . On my machine it is like this (see the first attachment, "splitbuttongood.jpg").

But on my colleague's machine, the dropdown content frame is aligned to the right, along with the button that makes it appear. (see the second attachment, "splitbuttonbad.jpg")>

Is there a property I can set to control this? Do I have to retemplate the entire control?

I should add, this exactly the same code in both cases that's producing this different effect on the two machines

Buttons

answered on 04 Apr 2022

1 answer

267 views

RichTextBox HtmlFormatProvider export overflow document (especially table).

I am inserting text in Richtextbox control from word document. Richtextbox load document correctly and formatting is valid as per MS word document.

Then save document as html and reopen document in Richtextbox. I noticed that Table content is overflowed in paged layout i.e. Columns are clipped or not showing in document area. And also print incomplete document. As I stated when load document, formatting is correct, but exporting document to html and reloading html generated document, this issue happened.

Moreover there is some formatting issue as I highlighted in attached sample image.

This issue can be reproduced in Telerik UI for WPF demos. Following steps to reproduce issue.

In Richtextbox open or paste content from attached sampleDocument.docx document. Document is loaded, and formatting is valid.
Save as html. sample html output is attached for reference
Open saved html document in Richtextbox. You will notice Table formatting/ alignment is not as per actual document.

I am using Telerik UI for WPF R1 2022

RichTextBox

answered on 04 Apr 2022