/// <summary>
/// 在表达式末尾添加函数
/// </summary>
/// <param name="sender">事件发送者</param>
/// <param name="e">事件参数</param>
private void AddFunctionAtEnd(object sender, EventArgs e)
{
FunctionEditForm eForm = new FunctionEditForm(conn);
if (eForm.ShowDialog() == DialogResult.OK)
{
int index = richTextBox1.SelectionStart;
string content = richTextBox1.Text;
string functionString = eForm.Value;
content = content.Insert(index + 1, functionString);
if (CheckExpressionValid(content))
{
richTextBox1.ForeColor = Color.Black;
}
else
{
richTextBox1.ForeColor = Color.Red;
}
richTextBox1.Text = content;
lastSelectionStart = index + 1;
lastSelectionLength = functionString.Length;
richTextBox1.SelectionStart = index + 1;
richTextBox1.SelectionLength = functionString.Length;
}
}
/// <summary>
/// 编辑方法
/// </summary>
/// <param name="sender">事件发送者</param>
/// <param name="e">事件参数</param>
private void EditFunction(object sender, EventArgs e)
{
FunctionEditForm eForm = new FunctionEditForm(conn);
if (eForm.ShowDialog() == DialogResult.OK)
{
int index = richTextBox1.SelectionStart;
string content = richTextBox1.Text;
string functionString = eForm.Value;
if (richTextBox1.SelectedText == "") // 添加函数
{
content = content.Insert(index, functionString);
}
else // 编辑函数
{
content = content.Remove(index, richTextBox1.SelectedText.Length);
content = content.Insert(index, functionString);
}
if (CheckExpressionValid(content))
{
richTextBox1.ForeColor = Color.Black;
}
else
{
richTextBox1.ForeColor = Color.Red;
}
richTextBox1.Text = content;
lastSelectionStart = index;
lastSelectionLength = functionString.Length;
richTextBox1.SelectionStart = index;
richTextBox1.SelectionLength = functionString.Length;
}
}
/// <summary>
/// 在表达式末尾添加函数
/// </summary>
/// <param name="sender">事件发送者</param>
/// <param name="e">事件参数</param>
private void AddFunctionAtEnd(object sender, EventArgs e)
{
FunctionEditForm eForm = new FunctionEditForm(conn);
if (eForm.ShowDialog() == DialogResult.OK)
{
int index = richTextBox1.SelectionStart;
string content = richTextBox1.Text;
string functionString = eForm.Value;
content = content.Insert(index + 1, functionString);
if (CheckExpressionValid(content))
{
richTextBox1.ForeColor = Color.Black;
}
else
{
richTextBox1.ForeColor = Color.Red;
}
richTextBox1.Text = content;
lastSelectionStart = index + 1;
lastSelectionLength = functionString.Length;
richTextBox1.SelectionStart = index + 1;
richTextBox1.SelectionLength = functionString.Length;
}
}
/// <summary>
/// 编辑方法
/// </summary>
/// <param name="sender">事件发送者</param>
/// <param name="e">事件参数</param>
private void EditFunction(object sender, EventArgs e)
{
FunctionEditForm eForm = new FunctionEditForm(conn);
if(eForm.ShowDialog() == DialogResult.OK)
{
int index = richTextBox1.SelectionStart;
string content = richTextBox1.Text;
string functionString = eForm.Value;
if(richTextBox1.SelectedText == "") // 添加函数
{
content = content.Insert(index, functionString);
}
else // 编辑函数
{
content = content.Remove(index, richTextBox1.SelectedText.Length);
content = content.Insert(index, functionString);
}
if (CheckExpressionValid(content))
{
richTextBox1.ForeColor = Color.Black;
}
else
{
richTextBox1.ForeColor = Color.Red;
}
richTextBox1.Text = content;
lastSelectionStart = index;
lastSelectionLength = functionString.Length;
richTextBox1.SelectionStart = index;
richTextBox1.SelectionLength = functionString.Length;
}
}