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QuestionAnyone have experience porting Wonderware scripting to C#.net? Pin
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QuestionIs there any difference in performance when you add a huge amount of data into the database using EF Core (row by row) or using SQL Server stored procedures? Pin
Code4Ever18-May-22 6:25
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AnswerRe: Is there any difference in performance when you add a huge amount of data into the database using EF Core (row by row) or using SQL Server stored procedures? Pin
Gerry Schmitz18-May-22 7:34
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AnswerRe: Is there any difference in performance when you add a huge amount of data into the database using EF Core (row by row) or using SQL Server stored procedures? Pin
Victor Nijegorodov18-May-22 9:27
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QuestionHZH_Controls.Controls.UCTextBoxEx Cast Object Error Problem Pin
Eddie You17-May-22 14:15
MemberEddie You17-May-22 14:15 
Hi, i am using HZH_Controls.Controls.UCTextBoxEx to embed a UCTextBoxEx into a DataGridView control's TextBox field. The program is like below:
C#
private HZH_Controls.Controls.UCTextBoxEx uctextBox1=null;
uctextBox1 = new HZH_Controls.Controls.UCTextBoxEx();
this.uctextBox1.Leave += new EventHandler(uctextBox1_Leave);
this.uctextBox1.TextChanged += new EventHandler(uctextBox1_TextChanged);
this.uctextBox1.Visible = false;
this.uctextBox1.KeyBoardType =  HZH_Controls.Controls.KeyBoardType.UCKeyBorderNum;

private void uctextBox1_Leave(object sender, EventArgs e)
{
    this.uctextBox1.Visible = false;
}

private void uctextBox1_TextChanged(object sender, EventArgs e)
{
     this.dataGridViewAxisDefine.CurrentCell.Value = ((HZH_Controls.Controls.UCTextBoxEx)sender).Text;
     this.uctextBox1.Visible = false;
}

private void DataGridViewAxisDefine_CurrentCellChanged(object sender, EventArgs e)
{
   if ( this.dataGridViewAxisDefine.CurrentCell.ColumnIndex == 2)
   {
          Rectangle rectangle = dataGridViewAxisDefine.GetCellDisplayRectangle(dataGridViewAxisDefine.CurrentCell.ColumnIndex, dataGridViewAxisDefine.CurrentCell.RowIndex, false);

          string value = dataGridViewAxisDefine.CurrentCell.Value.ToString();
          this.uctextBox1.Text = value;
          this.uctextBox1.Left = rectangle.Left;
          this.uctextBox1.Top = rectangle.Top;
          this.uctextBox1.Width = rectangle.Width;
          this.uctextBox1.Height = rectangle.Height;
          this.uctextBox1.Visible = true;
   }
   else
   {
          this.uctextBox1.Visible = false;
          //this.comboBox1.Visible = false;
   }
}

i just want people to click the TextBox field that is on the DataGridView to display a soft number pad and edit the numbers on it.
Now the error apears onto the line "
this.dataGridViewAxisDefine.CurrentCell.Value = ((HZH_Controls.Controls.UCTextBoxEx)sender).Text;
", saying "'
HZH_Controls.Controls.TextBoxEx
' object cannot cast to '
HZH_Controls.Controls.UCTextBoxEx
' "
The TextBoxEx is also a control of
HZH_Controls.Controls
, but i never use it.
The error message is translated from Chinese and may not precisely decribe the original meaning since i am using a Chinese version VS 2017.
So, my question is what's the problem cause this error and how to solve this problem? Many thanks in advance!
AnswerRe: HZH_Controls.Controls.UCTextBoxEx Cast Object Error Problem Pin
Richard MacCutchan17-May-22 21:26
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GeneralRe: HZH_Controls.Controls.UCTextBoxEx Cast Object Error Problem Pin
Eddie You17-May-22 21:41
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AnswerRe: HZH_Controls.Controls.UCTextBoxEx Cast Object Error Problem Pin
Richard Deeming17-May-22 21:27
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GeneralRe: HZH_Controls.Controls.UCTextBoxEx Cast Object Error Problem Pin
Eddie You17-May-22 21:46
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QuestionUsing Token in a WCF Pin
Luis M. Rojas16-May-22 6:07
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QuestionSolved!!! Invalid expression term 'uint' Pin
mbah obiora14-May-22 22:41
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AnswerRe: Invalid expression term 'uint' Pin
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GeneralRe: Invalid expression term 'uint' Pin
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GeneralRe: Invalid expression term 'uint' Pin
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QuestionParse complex numbers from string Pin
Member 1563407112-May-22 8:28
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AnswerRe: Parse complex numbers from string Pin
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AnswerRe: Parse complex numbers from string Pin
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GeneralRe: Parse complex numbers from string Pin
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GeneralRe: Parse complex numbers from string Pin
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GeneralRe: Parse complex numbers from string Pin
Richard Deeming17-May-22 3:26
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GeneralRe: Parse complex numbers from string Pin
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GeneralRe: Parse complex numbers from string Pin
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