//----------------------------------------------------------
//函式名稱: bt_ReplaceAll_Click
//說明: 全部取代
//參數: 無
//回傳值: 無
//----------------------------------------------------------
private void bt_ReplaceAll_Click(object sender, EventArgs e)
{
Int16 KeyText_Cnt = 0; //計錄共有幾個文字要被取代
EditSqlForm esform = (EditSqlForm)this.Owner;
esform.RTB_SQL.SelectionStart = 0;
//計算要取代的文字數目--------------------------------------
while (SearchKeyText(tb_ReplaceText.Text, 1) == true)
{
KeyText_Cnt++;
}
if (KeyText_Cnt > 0)
{
lb_Alert.Text = "共有 " + KeyText_Cnt.ToString() + " 個要取代的文字。";
}
else
{
lb_Alert.Text = "沒有任何要取代的文字!";
esform = null;
return;
}
//POPUP再次確認是否全部取代--------------------------------------
if (MessageBox.Show("即將取代 " + KeyText_Cnt.ToString() + " 個文字，請確定？", "全部取代訊息", MessageBoxButtons.OKCancel) == DialogResult.OK)
{
esform.RTB_SQL.SelectionStart = 0;
while (SearchKeyText(tb_ReplaceText.Text, 1) == true)
{
ReplaceSelText();
}
lb_Alert.Text = "已取代 " + KeyText_Cnt.ToString() + " 個文字!";
}
esform = null;
}
//----------------------------------------------------------
//函式名稱: ReplaceSelText
//說明: 取代"目前選擇的文字"
//參數:
//回傳值:
//----------------------------------------------------------
private void ReplaceSelText()
{
EditSqlForm esform = (EditSqlForm)this.Owner;
Int32 start_pos = esform.RTB_SQL.SelectionStart;
string part01 = esform.RTB_SQL.Text.Substring(0, start_pos);
string part02 = esform.RTB_SQL.Text.Substring(start_pos + esform.RTB_SQL.SelectionLength);
esform.RTB_SQL.Text = part01 + tb_NewText.Text + part02;
esform.RTB_SQL.SelectionStart = start_pos + tb_NewText.Text.Length;
esform.RTB_SQL.Focus(); //回到焦點
esform = null;
}
//----------------------------------------------------------
//函式名稱: SearchKeyText
//說明: 尋找文字
//參數: KeyText(搜尋的字串), StartPosFlg(0:選取文字的起頭開始搜尋)(1:選取文字的結尾開始搜尋)...若無選取任何文字則無差別
//回傳值: true(有找到),false(沒有找到)
//----------------------------------------------------------
private bool SearchKeyText(string KeyText, int StartPosFlg)
{
EditSqlForm esform = (EditSqlForm)this.Owner;
//開始的位置(若有選取文字，則為目前選取文字的最後一個位置)
Int32 SearchStartPos = 0;
switch (StartPosFlg)
{
case 0:
SearchStartPos = esform.RTB_SQL.SelectionStart;
break;
case 1:
SearchStartPos = esform.RTB_SQL.SelectionStart + esform.RTB_SQL.SelectionLength;
break;
default:
break;
}
//往後找到符合文字的位置
Int32 FoundPos = esform.RTB_SQL.Text.IndexOf(KeyText, SearchStartPos);
if (FoundPos >= 0)
{
lb_Alert.Text = "";
esform.RTB_SQL.Select(FoundPos, KeyText.Length); //選取該文字
esform.RTB_SQL.Focus();
esform = null;
return(true);
}
else
{
lb_Alert.Text = "往後尋找..無此文字!";
esform = null;
return(false);
}
}