Value does not fall within expected range exception [:(]

6 replies. Latest Post by varshavmane on July 2, 2009.

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varshavmane

Contributor

6723 points

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Value does not fall within expected range exception [:(]

07-02-2009 6:09 AM |

Hi all,

Below is the Method which work fine for the first time but when I call this method for second time it give me runtime exception saying 'Value does not fall within expected range exception' on line

cInner.Children.Add(b);

Can someone please tell me where I am doing mistake ?

Here is the Code:

private void ShowGraphItem(string item, Canvas rootID, int[] pParam, double[] param)

{

if (pParam == null)

{

pParam = new int[2];

}

Random random = new Random();

int randId = int.Parse(Math.Round(random.NextDouble() * 10000000).ToString());

Border b = new Border();

b.Name = "brGraphNode_" + item;

b.CornerRadius = new CornerRadius(7);

b.BorderThickness = new Thickness(1);

b.BorderBrush = new SolidColorBrush(Color.FromArgb(255,

Convert.ToByte("FF", 16),

Convert.ToByte("00", 16),

Convert.ToByte("00", 16)));

b.Background = new SolidColorBrush(Color.FromArgb(255,

Convert.ToByte("FF", 16),

Convert.ToByte("FF", 16),Convert.ToByte("FF", 16)));

b.Width = 100;

b.Height = 40;

Canvas.SetLeft(b, param[0]);

Canvas.SetTop(b, param[1]);

TextBlock t = new TextBlock();t.Name = "tbTimeLineTypeName_" + item;

t.Text = item;

t.TextWrapping = TextWrapping.Wrap;

t.TextAlignment = TextAlignment.Center;

t.VerticalAlignment = VerticalAlignment.Center;

t.HorizontalAlignment = HorizontalAlignment.Center;

Canvas.SetLeft(t, param[0]);

Canvas.SetTop(t, param[1]);

b.Child = t;

if (_isRoot == true)

{

Line l = new Line();l.Name = "Line_" + item;

l.X1 = param[0];

l.Y1 = param[1];

l.X2 = param[2];

l.Y2 = param[3];

l.Stroke = new LinearGradientBrush()

{

GradientStops = new GradientStopCollection()

{

new GradientStop() { Color = Colors.LightGray, Offset = 0 },

new GradientStop() { Color = Colors.Blue, Offset = 0.2 },

new GradientStop() { Color = Colors.LightGray, Offset = 1}

}

};

l.StrokeThickness = 1;

cInner.Children.Add(l);

}

cInner.Children.Add(b);

}

Thanks in advance.

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HarshBar...

Star

9908 points

1,719 Posts

Re: Value does not fall within expected range exception [:(]

07-02-2009 6:15 AM |

From this code i am not able to figure out what is actual cause but the error mentioned by you can occur when you are trying to add a framework element which is aprt of a collection to some other collection.

Mark as answer if this post answered your question.

Harsh Bardhan

varshavmane

Contributor

6723 points

1,580 Posts

Re: Re: Value does not fall within expected range exception [:(]

07-02-2009 6:27 AM |

Thanks for the reply. The thing is that I have to create a rectangle with text inside and once first element is created then I have to join the first and the secong rectangle.

So I am using Border, Textblock and Line to join them. This is I have to do till I have items in my List.

Can you please tell me how do I add it again and again ?

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vincracker

Contributor

3116 points

522 Posts

Re: Value does not fall within expected range exception [:(]

07-02-2009 6:39 AM |

Hi Varsha,

I think you might have problem with the name. First you add element then it works fine but second time it fails, what it means we only have to concentrate on the points which changes for second pass. And I mostly forgot to change the name when adding the control again which end up with "value doesn't fall withing expected range". I strongly recommend you to double check it.