Question

我希望获得ComboBox中DataGridView单元格的值，以将其放入记录的Update方法中。此ComboBox的值随DisplayMember一起显示，并以ID的形式存储在数据库中。

我的表单加载方法ComboBox中的DataGridView，索引为15的ComboBox单元格

.............
        dgv_Cust.Columns[14].Name="Web";
        dgv_Cust.Columns[14].DataPropertyName = "Web";
        DataGridViewComboBoxColumn cbcol = new DataGridViewComboBoxColumn();
        cbcol.Name = "AccStatus";

        cbcol.DataPropertyName = "cbcol"; // DataTable column name
        cbcol.Items.Add(new ComboRecord(0, ""));
        cbcol.Items.Add(new ComboRecord(1, "Active"));
        cbcol.Items.Add(new ComboRecord(2, "NotActive"));
        cbcol.Items.Add(new ComboRecord(3, "Other"));
        cbcol.DisplayMember = "Status";
        cbcol.ValueMember = "IDx";
        cbcol.DisplayIndex = 15;
        dgv_Cust.Columns.Add(cbcol);

        dgv_Cust.Columns[15].Name = "AccStatus";
        dgv_Cust.Columns[15].DataPropertyName = "AccStatus";

        dgv_Cust.ColumnCount = 17;


        dgv_Cust.Columns[16].Name="Location";
        dgv_Cust.Columns[16].DataPropertyName = "Location";

        dgv_Cust.DataSource = DBConn.getCustInfo1();
    }

我从这个DataGridView获取值，将其传递给Update方法，就像这样......

private void button2_Click(object sender, EventArgs e)   //UpdateCustomer
{

      //Here I want to get valueMember(IDx) for cell[15], from the comboBox          

        string PostalCode = this.dgv_Cust.CurrentRow.Cells[2].Value.ToString();
        string Name = this.dgv_Cust.CurrentRow.Cells[3].Value.ToString();
        string BusinessName = this.dgv_Cust.CurrentRow.Cells[4].Value.ToString();
        string AltName = this.dgv_Cust.CurrentRow.Cells[5].Value.ToString();
        string Adrs1 = this.dgv_Cust.CurrentRow.Cells[6].Value.ToString();
        string Adrs2 = this.dgv_Cust.CurrentRow.Cells[7].Value.ToString();
        string City = this.dgv_Cust.CurrentRow.Cells[8].Value.ToString();
        string Province = this.dgv_Cust.CurrentRow.Cells[9].Value.ToString();
        string Phone1 = this.dgv_Cust.CurrentRow.Cells[10].Value.ToString();
        string Phone2 = this.dgv_Cust.CurrentRow.Cells[11].Value.ToString();
        string Email1 = this.dgv_Cust.CurrentRow.Cells[12].Value.ToString();
        string Email2 = this.dgv_Cust.CurrentRow.Cells[13].Value.ToString();
        string Web = this.dgv_Cust.CurrentRow.Cells[14].Value.ToString();
        string Location = this.dgv_Cust.CurrentRow.Cells[16].Value.ToString();


        try
        {


            DBConn.updateCustInfo1(AccStatus, PostalCode, Name, BusinessName, AltName, Adrs1, Adrs2, City, Province, Phone1, Phone2, Email1, Email2, Web, Location);
        }
        catch (Exception es)
        {
            MessageBox.Show(es.Message);

        }

如何从ValueMember(IDx)中DisplayMember的{{1}}（“”，“有效”，“NotActive”，“其他”）获取ComboBox作为DGV ComboBox值在数据库中存储为“IDx”。

Answer 1

假设ID是int：

ComboRecord cr =((DataGridViewComboBoxCell)this.dgv_Cust.CurrentRow.Cells[15]).ValueMember;
int id = cr.xxx ; // replace xxx by the Id property/variable of the ComboRecord

如果它不起作用，请使用调试器检查以下项目的类型：

this.dgv_Cust.CurrentRow.Cells[15].Value
((DataGridViewComboBoxCell)this.dgv_Cust.CurrentRow.Cells[15]).ValueMember

Answer 2

我有类似的ASP.NET项目，我使用FindControl查找组合框ID

猜猜你在使用Form，我会这样尝试：

 ComboBox cbo = this.Controls.Find("combotBox1", true).FirstOrDefault() as ComboBox;

Control.ControlCollection.Find Method

如何从datagridview单元格获取comboBox值

2 个答案: