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i am creating program that checks if the path is valid or not 
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setDirty(); SaveFileDialog saveFileDialog1 = new SaveFileDialog(); saveFileDialog1.Title = ""; saveFileDialog1.OverwritePrompt = true; var dialogResult = saveFileDialog1.ShowDialog(); if (dialogResult == DialogResult.OK) { StringBuilder sb = new StringBuilder(); sb.AppendFormat("CheckLoggin = {0}", chkLoggin.Checked).AppendLine(); sb.AppendFormat("LogFilePath = {0}", txtFilePath.Text).AppendLine(); sb.AppendFormat("NumberOfThreads = {0}", txtNumOfThreads.Text).AppendLine(); File.WriteAllText(saveFileDialog1.FileName, sb.ToString()); saveFileDialog1.Close(); } } 
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private void txtNumOfThreads_KeyPress(object sender, KeyPressEventArgs e) private void txtNumOfThreads_KeyPress(object sender, KeyPressEventArgs e) { if (!char.IsControl(e.KeyChar) && !char.IsDigit(e.KeyChar) && e.KeyChar != '.') { e.Handled = true; } }
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private void btnCancel_Click(object sender, EventArgs e) { //setDirty(); this.Close(); } private void btnOk_Click(object sender, EventArgs e) { setDirty(); //openFileDialog1.ShowDialog(); saveFileDialog1.ShowDialog(); } private void btnBrowse_Click(object sender, EventArgs e) { OpenFileDialog openFileDialog1 = new OpenFileDialog(); openFileDialog1.InitialDirectory = @""; openFileDialog1.Title = "Select a File"; if (openFileDialog1.ShowDialog() != DialogResult.Cancel) txtFilePath.Text = openFileDialog1.FileName; else txtFilePath.Text …
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