如何用文本框，下拉列表填充gridview动态? [英] how can I fill gridview dynamic with textboxes ,dropdownlists ?

问题描述

hi如何使用文本框和复选框动态填充gridview.
例如grdvw的第一行是a，b，c
第二个是a，d，e，f
a:文本框(列)
b:下拉列表(列)
c，d，e，f ..
但是它们不是恒定的，它会根据用户选择而变化.

然后我想从gridview获取选定的项或textbox.text.

thnx为您提供帮助，

çağlarakbıyık

hi How can I fill gridview dynamically with textboxes,checkboxes.
forexample first row of grdvw is a,b,c
second one is a,d,e,f
a: textbox (column)
b:dropdownlist (column)
c,d,e,f..
But they are not constant, it changes according the user selection.

then ı want to get selected items or textbox.text from gridview.

thnx for your help ,

çağlar akbıyık

推荐答案

我们可以添加像下面的代码一样，我给出了一个简单的代码，并根据您的要求对其进行了格式化.手动为每行添加，如果网格行很低就可以(例如5).如果网格行多于该行，则您必须以另一种方式....

Hi we can add like the following code i am giving a simple code and format it as per u r requirement....but the thing is we have add manually for each row it is ok if the grid rows are low say 5....if the grid rows are more than that u have to see another way....

Protected Sub GridView1_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridView1.RowDataBound
        If (e.Row.DataItemIndex > 0) Then
            Select Case e.Row.DataItemIndex
                Case 1
                    Dim txt As New TextBox
                    Dim chk As New CheckBox
                    GridView1.Rows(e.Row.DataItemIndex - 1).Cells(1).Controls.Add(txt)
                    GridView1.Rows(e.Row.DataItemIndex - 1).Cells(2).Controls.Add(chk)
                Case 2
                    Dim ddl As New DropDownList
                    Dim chk As New CheckBox
                    GridView1.Rows(e.Row.DataItemIndex - 1).Cells(1).Controls.Add(ddl)
                    GridView1.Rows(e.Row.DataItemIndex - 1).Cells(2).Controls.Add(chk)
            End Select
        End If
    End Sub

获取网格视图数据连接添加写查询从表名中选择字段名1，字段名2，其中字段名1如@ fieldname1 +''％"，字段名2如@ fieldname2 +"％"，按字段名1排序.然后单击确定.然后以选择数据源-f4-的形式出现selectquery-有make参数fieldname1 -controlsource，在那里选择控件控件ID textbox.text，然后确定

take a grid view make data connection add write query"selct fieldname1,fieldname2 from table name where fieldname1 like @fieldname1+ ''%'' and fieldname2 like @fieldname2+ ''%'' order by fieldname1. then click ok.then come on form select datasource-f4-selectquery-there make parameter fieldname1 -controlsource there select control control id textbox.text and then ok

在页面中创建Gridview

将GridView拖放到页面上
或

在页面中手动键入GridView定义.

Create a gridview in the page

Drag and drop the GridView on to the page
Or

Manually type GridView definition in the page.

public partial class _Default : System.Web.UI.Page

{

#region constants

const string NAME NAME ;

const string ID ID ;

#endregion


protected void Page_Load(object sender EventArgs e)

{

loadDynamicGrid();

}


private void loadDynamicGrid()

{

#region Code for preparing the DataTable


//Create an instance of DataTable

DataTable dt new DataTable();


//Create an ID column for adding to the Datatable

DataColumn dcol new DataColumn(ID typeof(System.Int32));

dcol.AutoIncrement true;

dt.Columns.Add(dcol);


//Create an ID column for adding to the Datatable

dcol new DataColumn(NAME typeof(System.String));

dt.Columns.Add(dcol);


//Now add data for dynamic columns

//As the first column is auto-increment we do not have to add any thing.

//Let''s add some data to the second column.

for (int nIndex 0; nIndex < 10; nIndex++)

{

//Create a new row

DataRow drow dt.NewRow();


//Initialize the row data.

drow[NAME] Row- + Convert.ToString((nIndex + 1));


//Add the row to the datatable.

dt.Rows.Add(drow);

}

#endregion


//Iterate through the columns of the datatable to set the data bound field dynamically.

foreach (DataColumn col in dt.Columns)

{

//Declare the bound field and allocate memory for the bound field.

BoundField bfield new BoundField();


//Initalize the DataField value.

bfield.DataField col.ColumnName;


//Initialize the HeaderText field value.

bfield.HeaderText col.ColumnName;


//Add the newly created bound field to the GridView.

GrdDynamic.Columns.Add(bfield);

}


//Initialize the DataSource

GrdDynamic.DataSource dt;


//Bind the datatable with the GridView.

GrdDynamic.DataBind();

}

}

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