[英]Trying to take and use a value assigned to a string in a combobox
我已經為組合框中的字符串分配了值,但是似乎無法獲取變量來獲取所選值。
例:
this.selectquest.Items.AddRange(new Level[] {
new Level() {Name = "Level 41", Value = 1476088},
new Level() {Name = "Level 52", Value = 6000000},
new Level() {Name = "Level 53", Value = 7000000}});
我想取值(基於組合框選擇)並將其設置為變量:
int Value = ptexp;
然后我想像這樣做數學:
int ttlvl = ptexp / tlvl;
但是,當我這樣做時,它只會給我數字0。如果執行相反的操作,則會出現錯誤,表明它試圖除以0。
附加信息:
這是有效的:
private void calculate_Click(object sender, EventArgs e)
{
op = "X";
clvl = int.Parse(currentlevel.Text);
currentlevel.Text = "";
cexp = int.Parse(currentexp.Text);
currentexp.Text = "";
mexp = int.Parse(mobsexp.Text);
mobsexp.Text = "";
if (op == "X")
tlvl = clvl - cexp;
int ttlvl = tlvl / ptexp;
turnstolvl.Text = ttlvl.ToString();
}
private void selectquest_SelectedIndexChanged(object sender, EventArgs e)
{
selectquest.DisplayMember = "Name";
var v = selectquest.SelectedItem as Level;
int Value = (selectquest.SelectedItem as Level).Value;
ptexp = Value;
}
投射組合框的選定值即可:
var selectedValue = (Level)selectquest.SelectedItem;
int value = selectedValue.Value;
您可以在此事件上執行此操作:comboBox1_SelectedIndexChanged
更新:
如果希望值等於選擇值,請在以下情況下執行此操作:
int value = (selectquest.SelectedItem as Level).Value;
ptexp = value;
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