Diesel Geezer Posts - Answer Overflow

Diesel Geezer

•Created by Diesel Geezer on 10/31/2024 in #help

Problem with datagridview sorting

after i use dataGridView1.Sort(dataGridView1.Columns[0], System.ComponentModel.ListSortDirection.Ascending); The datagridview starts ordering whatever i enter automatically. I thought this was supposed to sort the data only when i ran the command, not make it sort automatically all the time how do i sort a datagridview only once without the automatic ordering

6 replies

CC#

•Created by Diesel Geezer on 8/11/2024 in #help

How to check if element exists in html cefsharp

I tried this but it throws an exception that the response is null

string getElementByName = @"document.getElementsByName(""media"")[0];";
private async void jsgetval(string script)
{
    responseResult = "";
    JavascriptResponse response = await ytBrowser.EvaluateScriptAsync(script);
    responseResult = response.Result.ToString();
    Console.WriteLine(responseResult);
}

string getElementByName = @"document.getElementsByName(""media"")[0];";
private async void jsgetval(string script)
{
    responseResult = "";
    JavascriptResponse response = await ytBrowser.EvaluateScriptAsync(script);
    responseResult = response.Result.ToString();
    Console.WriteLine(responseResult);
}

9 replies

CC#

•Created by Diesel Geezer on 7/23/2024 in #help

System.AccessViolationException: Attempted to read or write protected memory.

i get this exception when i change a multiline textbox to single line: Visual studio actually throws the exception at the Program.cs at the Application.Run(new Form1()); line, but i found that the issue is caused by the line valTxtBox.Multiline = false; because if i remove it i dont get the exception What is going on here?

cs 
valTxtBox.TextChanged += (_, _2) =>
{
    if (valTxtBox.Text.Contains('\n'))
    {
        disableTxtBoxAutoClose = true;
        valTxtBox.Multiline = true;
        valTxtBox.Height = 20 + 100;
        valTxtBox.Focus();
        disableTxtBoxAutoClose = false;
    }
    else
    {
        disableTxtBoxAutoClose = true;
        valTxtBox.Multiline = false; <<-PROBLEM CAUSED BY THIS?
        valTxtBox.Focus();
        valTxtBox.Text = boxText;
        disableTxtBoxAutoClose = false;
    }

cs 
valTxtBox.TextChanged += (_, _2) =>
{
    if (valTxtBox.Text.Contains('\n'))
    {
        disableTxtBoxAutoClose = true;
        valTxtBox.Multiline = true;
        valTxtBox.Height = 20 + 100;
        valTxtBox.Focus();
        disableTxtBoxAutoClose = false;
    }
    else
    {
        disableTxtBoxAutoClose = true;
        valTxtBox.Multiline = false; <<-PROBLEM CAUSED BY THIS?
        valTxtBox.Focus();
        valTxtBox.Text = boxText;
        disableTxtBoxAutoClose = false;
    }

4 replies

CC#

•Created by Diesel Geezer on 1/14/2024 in #help

How to pass parameters to a Func

28 replies

CC#

•Created by Diesel Geezer on 10/30/2023 in #help

❔ Typing whitespace creates 2 more after parsing RTF from RichTextBox and then re-applying it

Lets say i press space between 2 words. When i parse the RTF and then re apply it, i get 2 more spaces so 3 in total. When i remove spaces nothing crazy happens. This happens only when i type them. Though when i type a whitespace in the end of the sentence and THEN i type a word everything is fine. This only happens when i type whitespaces between 2 already existing words/characters. What is going on here?

6 replies

CC#

•Created by Diesel Geezer on 7/12/2023 in #help

❔ How to Initialize different forms using same piece of code

10 replies

CC#

•Created by Diesel Geezer on 7/11/2023 in #help

❔ Output from a command line app has extra characters when redirected to my application

8 replies

CC#

•Created by Diesel Geezer on 7/4/2023 in #help

❔ Problems with applying multiple styles on text in RichTextBox

Im trying to apply some styles to a piece of text in a richTextBox and they just won't work properly. Here is an example: "BeamMP Description". I want to make the last 2 characters of the word "BeamMP" bold (MP) and the second word bold and underlined. So for the first word i do this: I set the selectionStart to 0 and the selectionLength to the end of the RTBox. Then this: RTBox.SelectionFont = new Font(RTBox.SelectionFont, RTBox.SelectionFont.Style | FontStyle.Bold); Similar way to underline the word "Description" But the problem here is that the bolding magically dissapears and only the underline at the word Description is applied???

10 replies

CC#

•Created by Diesel Geezer on 7/1/2023 in #help

❔ Does indexof search for the specified character at the specified index?

Or does it skip the specified index for the next?

13 replies

CC#

•Created by Diesel Geezer on 6/30/2023 in #help

❔ Make a rich text box with custom formatting codes

is there any way to make a richtextbox with custom formatting codes? When i make a piece of text bold for example, instead of doing it like this: cat -> \b cat\b0 do it like this cat -> \customBoldCode cat\EndCustomBoldCode

17 replies

CC#

•Created by Diesel Geezer on 3/19/2023 in #help

How can i remove a substring from index i to first index of a or b character

6 replies

CC#

•Created by Diesel Geezer on 3/15/2023 in #help

how to get clicked button of context menu strip

24 replies

CC#

•Created by Diesel Geezer on 2/11/2023 in #help

❔ BinaryFormatter does not serialize/deserialize the Tags of listview items

so i have a listview that i want to serialize and then desirialize. I store some values in the tags of each listview item. Problem is that after i clear the listview and deserialize the file, the tags of each listview item is gone. I don't know if this is a problem of the writer or the reader, but i guess its because of the writer skipping the tag property. How can i overcome this issue?

  public bool WriteToBinaryFile(string filePath, ListView listview)
        {
            bool result = false;
            FileStream fsWrite = File.Open(filePath, FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
            try
            {
                BinaryFormatter binfmt = new BinaryFormatter();
                InvokeIfRequired(listview, () => { binfmt.Serialize(fsWrite, new ArrayList(listview.Items)); });
                result = true;
            }
            catch (Exception a) { pushError(a.ToString()); result = false; }
            try { fsWrite.Close(); }
            catch (Exception) { }
            return result;
        }

        public bool ReadFromBinaryFile(string filePath, ListView listview)
        {
            bool result = false;
            FileStream fsRead = File.Open(filePath, FileMode.Open, FileAccess.Read);
            try
            {
                // deserialize
                binfmt = new BinaryFormatter();
                ArrayList deserialized_array_list = (ArrayList)binfmt.Deserialize(fsRead);
                Array listviewitem_array = (deserialized_array_list).ToArray(typeof(ListViewItem));
                listview.Items.AddRange((ListViewItem[])listviewitem_array);
                result = true;
            }
            catch (SerializationException) { } //exclude this exception
            catch (Exception a) { pushError(a.ToString()); result = false; }
            try { fsRead.Close(); }
            catch (Exception) { }
            return result;
        }

  public bool WriteToBinaryFile(string filePath, ListView listview)
        {
            bool result = false;
            FileStream fsWrite = File.Open(filePath, FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
            try
            {
                BinaryFormatter binfmt = new BinaryFormatter();
                InvokeIfRequired(listview, () => { binfmt.Serialize(fsWrite, new ArrayList(listview.Items)); });
                result = true;
            }
            catch (Exception a) { pushError(a.ToString()); result = false; }
            try { fsWrite.Close(); }
            catch (Exception) { }
            return result;
        }

        public bool ReadFromBinaryFile(string filePath, ListView listview)
        {
            bool result = false;
            FileStream fsRead = File.Open(filePath, FileMode.Open, FileAccess.Read);
            try
            {
                // deserialize
                binfmt = new BinaryFormatter();
                ArrayList deserialized_array_list = (ArrayList)binfmt.Deserialize(fsRead);
                Array listviewitem_array = (deserialized_array_list).ToArray(typeof(ListViewItem));
                listview.Items.AddRange((ListViewItem[])listviewitem_array);
                result = true;
            }
            catch (SerializationException) { } //exclude this exception
            catch (Exception a) { pushError(a.ToString()); result = false; }
            try { fsRead.Close(); }
            catch (Exception) { }
            return result;
        }

10 replies

CC#

•Created by Diesel Geezer on 1/8/2023 in #help

Access file that is being used by another application using FileStream

public void WriteToBinaryFile(string filePath, ListView listview)
        {
            FileStream fsWrite = File.Open(filePath, FileMode.Create, FileAccess.ReadWrite); // I GET AN EXCEPTION HERE
            BinaryFormatter binfmt = new BinaryFormatter();
            InvokeIfRequired(listview,()=> { binfmt.Serialize(fsWrite, new ArrayList(listview.Items)); });
            
            fsWrite.Close();
        }

public void WriteToBinaryFile(string filePath, ListView listview)
        {
            FileStream fsWrite = File.Open(filePath, FileMode.Create, FileAccess.ReadWrite); // I GET AN EXCEPTION HERE
            BinaryFormatter binfmt = new BinaryFormatter();
            InvokeIfRequired(listview,()=> { binfmt.Serialize(fsWrite, new ArrayList(listview.Items)); });
            
            fsWrite.Close();
        }

13 replies

CC#

•Created by Diesel Geezer on 1/6/2023 in #help

❔ assign a local string function to a string variable

string parameters = ";mediaType = " + mediaTypeCombo +";" +  string res() { if (mediaTypeCombo.Text == "mp3") { return ""; } else return mediaTypeCombo.Text;  };

string parameters = ";mediaType = " + mediaTypeCombo +";" +  string res() { if (mediaTypeCombo.Text == "mp3") { return ""; } else return mediaTypeCombo.Text;  };

Is something like this possible?

8 replies

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