将所选列表框项从ownform传递到主窗体 - C＃

问题描述：

我在主窗体中有一个datagridview。通过单击datagridview的特定列，它将打开子表单或ownedform（动态创建）。拥有的表单有一个列表框和一个OK按钮。当用户从列表框中选择一个项目并单击确定时，所选文本需要出现在datagridview单元格上。但是当我点击OK时我无法得到结果。我也没有收到任何错误。这是代码

注意：如果使用文本框而不是列表框，我可以传递值到datagridview。我只是不知道如何处理列表框来传递价值。

动态创建所有形式的代码&添加控件

Hi, I have a datagridview in the main form. By clicking on a particular column of datagridview, it will open the sub form or ownedform(dynamically created). The owned form have a listbox and an OK button. When The user selects an item from listbox and click OK then selected text needs to be appear on the datagridview cell. But when i click OK i couldn't get the result. I am not receiving any error neither.Here's the code

NOTE: If use Textbox instead of listbox, i am able to pass the value to datagridview. I just don't know the way to handle listbox to pass value.

CODE FOR DYNAMICALLY CREATING OWNED FORM & ADDING CONTROLS

private List

BUTTON点击事件处理程序 - 不工作（列表框）

BUTTON CLICK EVENT HANDLER - NOT WORKING (LISTBOX)

private void dbtn_Click_SIGTB(object sender, EventArgs e)
        {
            int rowidx = dataGridView3.CurrentCell.RowIndex;
            int colidx = dataGridView3.CurrentCell.ColumnIndex;
            foreach(ListBox lb in inputlistboxes)
            {
                string selected = lb.GetItemText(lb.SelectedItem);
                dataGridView2.Rows[rowidx].Cells[colidx].Value = selected;
            }
            
            foreach (Form frm in ownform)
               frm.Close();
        }

BUTTON EVAND HANDLER - WORKING（TEXTBOX）

BUTTON EVENT HANDLER - WORKING (TEXTBOX)

private void dbtn_Click_VARTB(object sender, EventArgs e)
        {
            int rowidx = dataGridView2.CurrentCell.RowIndex;
            int colidx = dataGridView2.CurrentCell.ColumnIndex;
            foreach (TextBox txt in inputTextBoxes)
                dataGridView2.Rows[rowidx].Cells[colidx].Value = txt.Text;
            foreach (Form frm in ownform)
                frm.Close();
        }

DATAGRIDVIEW CELL CONTENT CLICK

private void dataGridView3_CellContentClick(object sender, DataGridViewCellEventArgs e)
       {
           if (dataGridView3.CurrentCell.ColumnIndex.Equals(3))
           {
               ShowMyOwnedForm_SIGTB();
           }
       }

我尝试了什么：

private void dbtn_Click_SIGTB（object sender，EventArgs e）

{

int rowidx = dataGridView3.CurrentCell.RowIndex ;

int colidx = dataGridView3.CurrentCell.ColumnIndex;

foreach（输入列表框中的ListBox lb）

{

string selected = lb.GetItemText（lb.SelectedItem）;

dataGridView2.Rows [rowidx] .Cells [colidx] .Value = selected;

}

foreach（表格frm in ownform）

frm.Close（）;

}

What I have tried:

private void dbtn_Click_SIGTB(object sender, EventArgs e)
{
int rowidx = dataGridView3.CurrentCell.RowIndex;
int colidx = dataGridView3.CurrentCell.ColumnIndex;
foreach(ListBox lb in inputlistboxes)
{
string selected = lb.GetItemText(lb.SelectedItem);
dataGridView2.Rows[rowidx].Cells[colidx].Value = selected;
}

foreach (Form frm in ownform)
frm.Close();
}

答

只需更新您的 dbtn_Click_SIGTB 函数，如下所示：

hi just update your dbtn_Click_SIGTB function as follows,

private void dbtn_Click_SIGTB(object sender, EventArgs e)
{
    int rowidx = dataGridView3.CurrentCell.RowIndex;
    int colidx = dataGridView3.CurrentCell.ColumnIndex;
    foreach(ListBox lb in inputlistboxes)
    {
        string selected = lb.Items[lb.SelectedIndex].ToString(); //lb.GetItemText(lb.SelectedItem);
        dataGridView2.Rows[rowidx].Cells[colidx].Value = selected;
    }

    foreach (Form frm in ownform)
       frm.Close();
}

将所选列表框项从ownform传递到主窗体 - C＃

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