从datagridview组合框列中选择项时，在datagridview文本框列中获取数据 [英] get data in datagridview textbox column when item selected from datagridview combobox column

问题描述

我有一个带有datagridviewcomboBox列和datagridviewTextbox列的datagridview。组合框列包含产品，当我选择产品时，产品代码应出现在产品表的textbox列中。我已经将组合框中的数据绑定但不能在文本框列中显示数据。

I have a datagridview with datagridviewcomboBox column and datagridviewTextbox column.the combobox column contains products and when i select a product, the product code should appear in textbox column from product table.I have already binded the data in combobox but not able to display data in textbox column.

我怎么能这样做..请帮助

how Can I do this.. Please Help

推荐答案

在Gridview RowCommand中，你得到下拉值为



DropDownList test =（DropDownList）e .Row.FindControl（ DropDown1）; //查找下拉控件

string value = test.SelectedItem.Value;

TextBox test1 =（TextBox）e.Row.FindControl（textbox1）; //查找文本框控件

string value1 = test1.Text;

In Gridview RowCommand you have get the dropdown values as

DropDownList test= (DropDownList)e.Row.FindControl("DropDown1"); //Finding Dropdown control
string value = test.SelectedItem.Value;
TextBox test1= (TextBox)e.Row.FindControl("textbox1"); //Finding textbox control
string value1=test1.Text;

<pre>Gridview Markup

<asp:TemplateField HeaderText="Address">
<EditItemTemplate><asp:TextBox ID="txtEAddress" Width="100px" runat="server" Text='<%# Bind("Address") %>'></asp:TextBox><asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="True"     onselectedindexchanged="DropDownList1_SelectedIndexChanged"><asp:ListItem>4</asp:ListItem><asp:ListItem>3</asp:ListItem><asp:ListItem>2</asp:ListItem><asp:ListItem>1</asp:ListItem></asp:DropDownList></EditItemTemplate><ItemTemplate><asp:Label ID="Label3" runat="server" Text='<%# Bind("Address") %>'></asp:Label></ItemTemplate><FooterTemplate><asp:TextBox ID="txtAddress" runat="server" Width="100px" TextMode="MultiLine"></asp:TextBox></FooterTemplate></asp:TemplateField>

代码背后

Code Behind

protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e) 
   { 
        DropDownList ddl = (DropDownList)sender; 
        GridViewRow row = (GridViewRow)ddl.Parent.Parent; 
        int idx = row.RowIndex;
        TextBox txtECustCode = (TextBox)row.Cells[0].FindControl("txtECustCode"); 
       string _text1 = txtECustCode.Text.ToString();
    }

对于Windows应用程序

For Windows Application

private void dataGridView1_EditingControlShowing(object sender,
    DataGridViewEditingControlShowingEventArgs e)
{
    ComboBox cb = e.Control as ComboBox;
    if (cb != null)
    {
        // first remove event handler to keep from attaching multiple:
        cb.SelectedIndexChanged -= new
        EventHandler(cb_SelectedIndexChanged);

        // now attach the event handler
        cb.SelectedIndexChanged += new
        EventHandler(cb_SelectedIndexChanged);
    }
}

void cb_SelectedIndexChanged(object sender, EventArgs e)
{
    MessageBox.Show("Selected index changed");
}

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