Question

返回由

组成的数据库中的表

project_id
TASK_NAME
启动
完整
位置

不知怎的，我想将gridview中的数据插入到sql中。请检查代码

Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click

        Dim SQLCmd As New SqlCommand
        SQLCmd.Connection = SQLCon

        SQLCon.open()

        ''insert data to sql database row by row
        Dim taskname, location, start, complete As String

        For i As Integer = 0 To Me.DataGridView1.Rows.Count
            taskname = Me.DataGridView1.Rows(i).Cells(0).ToString()
            start = Me.DataGridView1.Rows(i).Cells(1).ToString()
            complete = Me.DataGridView1.Rows(i).Cells(2).ToString()
            location = Me.DataGridView1.Rows(i).Cells(3).ToString()

            SQLCmd.CommandText = "insert into timeline ( project_id , taskname , start , complete , location) values (@pid,@task,@start,@complete,@location)"
            SQLCmd.Parameters.AddWithValue("@pid", TextBox1.Text)
            SQLCmd.Parameters.AddWithValue("@task", taskname)
            SQLCmd.Parameters.AddWithValue("@start", start)
            SQLCmd.Parameters.AddWithValue("@complete", complete)
            SQLCmd.Parameters.AddWithValue("@location", location)
            SQLCmd.ExecuteNonQuery()
        Next

        SQLCon.Close()
    End Sub

Answer 1

此错误表示您的其中一个字段DATATYPE length为small＆amp;您尝试插入more then the capacity of that DATATYPE length.

例如：
project_id声明为INT，您传递的假设为12312312313，该值大于INT数据类型的限制。

所以，请调试你的代码n检查所有coulmns＆amp;的数据类型是什么？根据该数据类型，您是否正确传递数据。

示例：

DECLARE @UserDetails TABLE(UserId INT, UserName VARCHAR(25),Designation VARCHAR(10))
INSERT INTO @UserDetails(UserId,UserName,Designation)
VALUES(1,'Hardik Parmar','Senior Software Engineer')
SELECT * FROM @UserDetails

这个例子将与你的Coz抛出相同的错误

对于

Designation

我们已经给了VARCHAR(10)这么长的时间。我们正试图插入VARCHAR(25)，但Designation库存的限制为VARCHAR(10)，那么它会给你错误

string or binary data would be truncated on gridview

字符串或二进制数据将在gridview上截断

1 个答案: