[ExceptionHandling] Øvelse i exception handling: Byte array
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10BD786B5F6FF5DE
@ -62,6 +62,14 @@
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this.btnBmi = new System.Windows.Forms.Button();
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this.lblBmi = new System.Windows.Forms.Label();
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this.txtBmi = new System.Windows.Forms.TextBox();
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this.lblExceptionOppgaveOne = new System.Windows.Forms.Label();
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this.btnExceptionToArray = new System.Windows.Forms.Button();
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this.lblExceptionIndexNum = new System.Windows.Forms.Label();
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this.txtExceptionIndexNum = new System.Windows.Forms.TextBox();
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this.txtExceptionValueOne = new System.Windows.Forms.TextBox();
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this.lblExceptionValueOne = new System.Windows.Forms.Label();
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this.lblExceptionArrayValues = new System.Windows.Forms.Label();
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this.txtExceptionArrayValues = new System.Windows.Forms.TextBox();
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this.SuspendLayout();
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//
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// txtExVat
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@ -350,11 +358,92 @@
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this.txtBmi.Size = new System.Drawing.Size(100, 20);
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this.txtBmi.TabIndex = 32;
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//
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// lblExceptionOppgaveOne
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//
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this.lblExceptionOppgaveOne.AutoSize = true;
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this.lblExceptionOppgaveOne.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
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this.lblExceptionOppgaveOne.Location = new System.Drawing.Point(13, 315);
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this.lblExceptionOppgaveOne.Name = "lblExceptionOppgaveOne";
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this.lblExceptionOppgaveOne.Size = new System.Drawing.Size(129, 13);
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this.lblExceptionOppgaveOne.TabIndex = 33;
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this.lblExceptionOppgaveOne.Text = "Exception Oppgave 1";
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//
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// btnExceptionToArray
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//
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this.btnExceptionToArray.Location = new System.Drawing.Point(16, 341);
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this.btnExceptionToArray.Name = "btnExceptionToArray";
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this.btnExceptionToArray.Size = new System.Drawing.Size(75, 23);
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this.btnExceptionToArray.TabIndex = 34;
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this.btnExceptionToArray.Text = "Til array";
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this.btnExceptionToArray.UseVisualStyleBackColor = true;
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this.btnExceptionToArray.Click += new System.EventHandler(this.btnExceptionToArray_Click);
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//
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// lblExceptionIndexNum
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//
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this.lblExceptionIndexNum.AutoSize = true;
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this.lblExceptionIndexNum.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
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this.lblExceptionIndexNum.ForeColor = System.Drawing.Color.Blue;
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this.lblExceptionIndexNum.Location = new System.Drawing.Point(107, 346);
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this.lblExceptionIndexNum.Name = "lblExceptionIndexNum";
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this.lblExceptionIndexNum.Size = new System.Drawing.Size(92, 13);
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this.lblExceptionIndexNum.TabIndex = 35;
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this.lblExceptionIndexNum.Text = "Indeksnummer:";
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//
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// txtExceptionIndexNum
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//
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this.txtExceptionIndexNum.Location = new System.Drawing.Point(205, 343);
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this.txtExceptionIndexNum.Name = "txtExceptionIndexNum";
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this.txtExceptionIndexNum.Size = new System.Drawing.Size(100, 20);
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this.txtExceptionIndexNum.TabIndex = 36;
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//
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// txtExceptionValueOne
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//
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this.txtExceptionValueOne.Location = new System.Drawing.Point(522, 343);
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this.txtExceptionValueOne.Name = "txtExceptionValueOne";
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this.txtExceptionValueOne.Size = new System.Drawing.Size(100, 20);
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this.txtExceptionValueOne.TabIndex = 38;
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//
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// lblExceptionValueOne
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//
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this.lblExceptionValueOne.AutoSize = true;
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this.lblExceptionValueOne.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
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this.lblExceptionValueOne.ForeColor = System.Drawing.Color.Blue;
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this.lblExceptionValueOne.Location = new System.Drawing.Point(318, 346);
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this.lblExceptionValueOne.Name = "lblExceptionValueOne";
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this.lblExceptionValueOne.Size = new System.Drawing.Size(198, 13);
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this.lblExceptionValueOne.TabIndex = 37;
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this.lblExceptionValueOne.Text = "Oppgi tall som skal legges i array:";
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//
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// lblExceptionArrayValues
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//
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this.lblExceptionArrayValues.AutoSize = true;
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this.lblExceptionArrayValues.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
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this.lblExceptionArrayValues.Location = new System.Drawing.Point(13, 384);
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this.lblExceptionArrayValues.Name = "lblExceptionArrayValues";
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this.lblExceptionArrayValues.Size = new System.Drawing.Size(85, 13);
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this.lblExceptionArrayValues.TabIndex = 39;
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this.lblExceptionArrayValues.Text = "Array-innhold:";
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//
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// txtExceptionArrayValues
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//
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this.txtExceptionArrayValues.Location = new System.Drawing.Point(105, 384);
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this.txtExceptionArrayValues.Name = "txtExceptionArrayValues";
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this.txtExceptionArrayValues.Size = new System.Drawing.Size(517, 20);
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this.txtExceptionArrayValues.TabIndex = 40;
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//
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// OvingsOppgave
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//
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this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
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this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
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this.ClientSize = new System.Drawing.Size(800, 450);
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this.Controls.Add(this.txtExceptionArrayValues);
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this.Controls.Add(this.lblExceptionArrayValues);
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this.Controls.Add(this.txtExceptionValueOne);
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this.Controls.Add(this.lblExceptionValueOne);
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this.Controls.Add(this.txtExceptionIndexNum);
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this.Controls.Add(this.lblExceptionIndexNum);
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this.Controls.Add(this.btnExceptionToArray);
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this.Controls.Add(this.lblExceptionOppgaveOne);
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this.Controls.Add(this.txtBmi);
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this.Controls.Add(this.lblBmi);
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this.Controls.Add(this.btnBmi);
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@ -434,6 +523,14 @@
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private System.Windows.Forms.Button btnBmi;
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private System.Windows.Forms.Label lblBmi;
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private System.Windows.Forms.TextBox txtBmi;
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private System.Windows.Forms.Label lblExceptionOppgaveOne;
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private System.Windows.Forms.Button btnExceptionToArray;
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private System.Windows.Forms.Label lblExceptionIndexNum;
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private System.Windows.Forms.TextBox txtExceptionIndexNum;
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private System.Windows.Forms.TextBox txtExceptionValueOne;
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private System.Windows.Forms.Label lblExceptionValueOne;
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private System.Windows.Forms.Label lblExceptionArrayValues;
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private System.Windows.Forms.TextBox txtExceptionArrayValues;
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}
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}
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@ -22,11 +22,16 @@ namespace OvingsOppgaveTre
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double exVat;
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string exVatText = txtExVat.Text;
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if (double.TryParse(exVatText, out exVat))
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try
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{
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exVat = Convert.ToDouble(exVatText);
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double incVat = exVat * 1.25;
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txtIncVat.Text = incVat.ToString();
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}
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catch (Exception ex)
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{
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MessageBox.Show(ex.ToString());
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}
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}
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private void txtIncVat_TextChanged(object sender, EventArgs e)
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@ -93,5 +98,39 @@ namespace OvingsOppgaveTre
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txtBmi.Text = bmi.ToString();
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}
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}
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private void btnExceptionToArray_Click(object sender, EventArgs e)
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{
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byte[] byteArray = new byte[6] {0, 0, 0, 0, 0, 0};
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var indexText = txtExceptionIndexNum.Text;
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var arrayValueText = txtExceptionValueOne.Text;
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try
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{
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var indexNum = Convert.ToInt16(indexText);
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var arrayValue = Convert.ToByte(arrayValueText);
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byteArray[indexNum] = arrayValue;
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txtExceptionArrayValues.Text = string.Join("\t", byteArray);
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}
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catch (IndexOutOfRangeException ex)
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{
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MessageBox.Show($"Ugyldig inndeks spesifisert i array: {indexText}\n{ex.GetType()}");
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}
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catch (OverflowException ex)
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{
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MessageBox.Show(
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$"Tallet du spesifiserte er for høyt for typen `byte`: {arrayValueText}\n{ex.GetType()}");
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}
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catch (Exception ex)
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{
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MessageBox.Show(ex.ToString());
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}
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finally
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{
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MessageBox.Show("Test utført.");
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}
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}
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}
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}
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