C TreeView 節點查詢

2021-05-26 23:22:58 字數 2583 閱讀 6738

主窗體部分**

/// /// 遍歷樹節點,並將節點存入list集合中

///

///

///

public void getallnodes(treenodecollection nodecollection, listnodelist)

}/// /// 查詢

///

///

///

private void btnfolder_click(object sender, eventargs e)

treeviewquery frm = new treeviewquery(this);

frm.showintaskbar = false;

frm.show(this);

}查詢窗體**

private folderfrom parentfrm;

private string lastfindstring; //記錄上一次查詢的文字

private int lastfindcount; //記錄上一次查詢的標記

private listnodelist = new list(); //記錄所有的樹節點

public treenode node = null; //記錄查詢到的節點

private bool isup = false; //是否向上查詢

public treeviewquery ()

public treeviewquery (folderfrom frm)

#region methods

/// /// 模糊匹配(向下查詢)

///

///

///

private int findnodepartdown(string inputtext, int startcount)

}return -1;

}/// /// 模糊匹配(向上查詢)

///

///

///

private int findnodepartup(string inputtext, int startcount)

//for (int i = nodelist.count - 1; i > startcount; i--)

for (int i = startcount; i >= 0; i--)

}return -2;

}/// /// 全字匹配查詢(向下查詢)

///

/// 查詢的內容

/// 起始位置

///

private int findnodealldown(string inputtext, int startcount)

}return -1;

}/// /// 全字匹配查詢(向上查詢)

///

/// 查詢的內容

/// 起始位置

///

private int findnodeallup(string inputtext, int startcount)

}return -1;

}#endregion

#region events

/// /// 取消

///

///

///

private void btnclose_click(object sender, eventargs e)

/// /// 窗體載入

///

///

///

private void treeviewquery_load(object sender, eventargs e)

/// /// 當文字框不為空時啟用查詢按鈕

///

///

///

private void txtinputtext_textchanged(object sender, eventargs e)

else

}/// /// 查詢下乙個

///

///

///

private void btnquerynext_click(object sender, eventargs e)

else

isup = true;

}else

else

isup = false;}}

else

else

isup = true;

}else

else

isup = false;}}

if (lastfindcount == -1) //判斷是否找到節點

else if (lastfindcount == -2) //判斷是否找到節點

node = nodelist[lastfindcount];

parentfrm.tvfolder.selectednode = node; //選中查詢到的節點

parentfrm.tvfolder.focus();

}

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