1.
添加項
checkedListBox1.Items.Add(“藍色”);
checkedListBox1.Items.Add(“紅色”);
checkedListBox1.Items.Add(“黃色”);
2.
判斷第i項是否選中,選中爲true,否則爲false
if(checkedListBox1.GetItemChecked(i))
{
return true;
}
else
{
return false;
}
3.
設置第i項是否選中
checkedListBox1.SetItemChecked(i, true); //true改爲false爲沒有選中。
4.
設置全選
添加一個名爲select_all的checkbox控件,由其控制checkedListBox是全選還是全不選。
private void select_all_CheckedChanged(object sender, EventArgs e)
{
if(select_all.Checked)
{
for (int j = 0; j < checkedListBox1.Items.Count; j++)
checkedListBox1.SetItemChecked(j, true);
}
else
{
for (int j =0; j < checkedListBox1.Items.Count; j++)
checkedListBox1.SetItemChecked(j, false);
}
}
5.
得到全部選中的值 ,並將選中的項的文本組合成爲一個字符串。
string strCollected = string.Empty;
for (int i = 0; i < checkedListBox1.Items.Count; i++)
{
if (checkedListBox1.GetItemChecked(i))
{
if (strCollected == string.Empty)
{
strCollected = checkedListBox1.GetItemText(
checkedListBox1.Items[i]);
}
else
{
strCollected = strCollected + "/" + checkedListBox1.
GetItemText(checkedListBox1.Items[i]);
}
}
}
6.
設置CheckedListBox中第i項的Checked狀態
checkedListBox1.SetItemCheckState(i, CheckState.Checked);
7.
private void checkBoxAll_CheckedChanged(object sender, EventArgs e)
{
if (checkBoxAll.Checked)
{
//被選擇了則將CheckedListBox中的所有條目都變爲Checked狀態
for (int i = 0; i < checkedListBoxLayerControl.Items.Count;
i++)
{
checkedListBoxLayerControl.SetItemCheckState(i,
CheckState.Checked);
}
}
else
{
//否則變成Unchecked狀態
for (int i = 0;
i < checkedListBoxLayerControl.Items.Count; i++)
{
checkedListBoxLayerControl.SetItemCheckState(i, CheckState.Unchecked);
}
}
}
8.
checkedListBox 單選設置(代碼實現)
private void chkl_ItemAuditing_ItemCheck(object sender,
ItemCheckEventArgs e)
{
if (chkl_ItemAuditing.CheckedItems.Count > 0)
{
for (int i = 0; i < chkl_ItemAuditing.Items.Count; i++)
{
if (i != e.Index)
{
this.chkl_ItemAuditing.SetItemCheckState(i,
System.Windows.Forms.CheckState.Unchecked);
}
}
}
}
9.
checkedListBox1顯示一個數據庫中關鍵字對應的所有記錄
for (int i = 0; i < table.Rows.Count; i++)
{
string name = table.Rows[“myname”].ToString();
string paw = table.Rows[“mypaw”].ToString();
checkedListBox1.Items.Add(name + paw);
}
10.
for(i=0;i